Search Results for: identification of post-translational modifications

The research conducted within the Synthetic Biologics Core (SBC) Facility has a dual role: Generate chemical biology tools and drug candidates for molecular targets identified by NCI research groups, Develop novel effective methods and tools Read More...

The OSTR offers cutting-edge technology platforms to the CCR scientific community through centralized facilities. The videos accessed through this page are designed to introduce the various scientific methodologies OSTR makes available through the cores on Read More...

The PPS encompasses all scientific analyses related to pharmacology, once the specimen has been collected and stored. There is a multi-step process to evaluate how the drug is being handled by the body after administration. Read More...

CREx Monthly Newsletter Learn about the NIH Collaborative Research Exchange (CREx), Core Facilities, Webinars, & More New Resources on CREx NIH NeuroBioBank (NBB) The NBB provides researchers with access to human post-mortem brain tissue Read More...

October 6, 2022 crex.nih.gov CREx Monthly Newsletter Learn about the NIH Collaborative Research Exchange (CREx), Core Facilities, Webinars, & More Science & Technology Seminars and Training Events Upcoming Seminars and Educational Opportunities The following Read More...

The PET Department, CC, functions as a core facility that supports basic, translational, and clinical research using PET. It is a vertically integrated facility, with resources to produce positron-emitting radionuclides, manufacture PET radiopharmaceuticals in a Read More...

NCI LASP Genome Modification Core (GMC) is a CCR-dedicated facility that provides advice, training, and reagents to NCI scientists seeking to utilize CRISPR and other nucleases to generate genome modifications in primary cells, cell lines, Read More...

Our mission is to help both scientists and non-scientists at the Frederick National Laboratory communicate more effectively. We aim to provide our customers with maximum convenience and unique value. Established Technologies Scientific Illustration SPGM illustrators Read More...

The Chemical Synthesis Group is a component of the Chemical Biology Laboratory. This facility provides synthetic chemistry resources and expertise to the NCI Intramural community.The facility’s capabilities include: Providing expertise, consultation, and experience Read More...

Radiology and Imaging Sciences provides imaging services for National Institutes of Health (NIH) Clinical Center patients participating in research protocols conducted by the various NIH institutes. Services include X-rays, fluoroscopy, ultrasound, magnetic resonance imaging (MRI) Read More...

The Clinical Flow Cytometry Laboratory provides extensive support for NCI clinical protocols by providing diagnostic testing for leukemia and lymphoma in patients either on NCI clinical protocols or undergoing testing to determine eligibility for NCI Read More...

Home Biophysics Core Technologies Biophysics Core Services The Biophysics Core The Biophysics Core Facility (BCF) was established in 2008 in the NHLBI as an advanced service laboratory providing expertise, training, consultations, and instrument access for intramural Read More...

The Department of Laboratory Medicine provides state-of-the-art laboratory testing in support of Clinical Center patient care and will serve as a center of excellence in research and training in laboratory medicine, particularly in areas which Read More...

The COP evaluates novel therapies in pet dogs with cancer to improve outcomes for human patients and established the Comparative Oncology Trial Consortium (COTC), a collaborative effort of NCI and extramural comparative oncology centers at 24 Read More...

The Biomedical Engineering and Physical Science (BEPS) shared resource supports NIH’s intramural basic and clinical scientists on applications of engineering, physics, imaging, measurement, and analysis. BEPS is centrally located on the main NIH campus Read More...

The Molecular Pathology Unit is intended to spearhead opportunities for bridging basic and clinical research efforts by more precisely optimizing the development, characterization, and utilization of models of human disease. The initiative approach includes both Read More...

Back Services: Biophysics Facility offers fluorometers as open-access instruments.  First-time users must complete a short training session before gaining access to the instrument reservation calendar. Location: Building 50, room 3226 Description: Some substances reemit light after Read More...

The NIH Biowulf Cluster provides researchers with a world-class system to assist in solving complex biomedical problems as diverse as gene variation in worldwide human populations, deep learning to model protein structures, and PET brain Read More...

CREx News & Updates April 2022 Learn about the NIH Collaborative Research Exchange (CREx), Core Facilities, Webinars, & More Click below to learn how easy it is to navigate the CREx platform. These short videos will Read More...

September 8, 2022 crex.nih.gov CREx Monthly Newsletter Learn about the NIH Collaborative Research Exchange (CREx), Core Facilities, Webinars, & More Science & Technology Seminars and Training Events Upcoming Seminars and Educational Opportunities The following Read More...

NISC’s role within NHGRI, and more broadly across NIH, aims to advance genome sequencing and its many applications, with a goal not simply to produce sequence data, but to produce the infrastructure required to Read More...

We are a bioinformatics team within the Center for Biomedical Informatics and Information Technology’s (CBIIT’s) Cancer Informatics Branch (CIB)—soon to be referred to as the Informatics and Data Science (IDS) Program. Headed Read More...

The Chemistry and Synthesis Center (CSC) of the National Heart, Lung, and Blood Institute (NHLBI) provides IRP scientists with targeted imaging probes and chemical tools that help accelerate cell-based assays, in vivo imaging studies, and Read More...

NCI LASP Animal Research Technology Support (ARTS) provides customized technical support for basic and translational animal-based research to the scientific community. We offer a wide array of services ranging from expert colony management to the Read More...

The National Cancer Institute (NCI) is developing a national repository of Patient-Derived Models (PDMs) comprised of patient-derived xenografts (PDXs), patient-derived organoids (PDOrg), and in vitro patient-derived tumor cell cultures (PDCs) and cancer-associated fibroblasts (CAFs). These Read More...

The Neurorehabilitation and Biomechanics Research Section (also referred to as the NAB LAB) is a multidisciplinary group of highly qualified scientists, clinical and technical staff, and trainees with diverse backgrounds including medical, physical therapy, neuroscience Read More...

Services: Biophysics Facility offers CD as an open-access instrument.  First-time users must complete a short training session before gaining access to the instrument reservation calendar. Location: Building 50, room 3123 Description: CD spectroscopy measures the difference Read More...

Back Services: Biophysics Facility offers CD as an open-access instrument.  First-time users must complete a short training session before gaining access to the instrument reservation calendar. Location: Building 50, room 3123 Description: CD spectroscopy measures the Read More...

The Laboratory Animal Sciences Program (LASP) of the Frederick National Laboratory operates a Gnotobiotics Facility (GF) to support research focused on the role of microbiota in cancer inflammation, pathogenesis, and treatment response. The GF can Read More...

The Optical Microscopy Analysis Core (OMAC), formerly known as the Optical Microscopy Analysis Lab (OMAL),  focuses its research and development activities to quantitatively understand the molecular basis of three-dimensional (3D) cell organization, motility, invasion, and Read More...

The Functional Genomics Laboratory (formerly, the RNAi Screening Facility) of the National Center for Advancing Translational Sciences (NCATS) assist investigators with all stages of project planning and execution, beginning with assay development through genome-wide siRNA Read More...

The Division of Veterinary Resources Animal Surgery has supported large animal research and clinical care for more than 40 years. DVR surgeons provide outstanding and highly specialized large animal (rabbits, ungulates, etc.) research support in a Read More...

The NCI Genomic Data Commons (GDC) was established by the NCI Center for Cancer Genomics (CCG) to support the receipt, harmonization, distribution, and analysis of genomic and clinical data from cancer research programs. The GDC Read More...

CREx News & Updates March 2022 Learn about the NIH Collaborative Research Exchange (CREx), Core Facilities, Webinars, & More Site Spotlight NIA Nonhuman Primate Core The NIA Nonhuman Primate Core supports multi-disciplinary translational aging projects for Read More...

CREx News & Updates May 2022 Learn about the NIH Collaborative Research Exchange (CREx), Core Facilities, Webinars, & More Click below to learn how easy it is to navigate the CREx platform. These short videos will Read More...

The NIH Center for Human Immunology, Inflammation, and Autoimmunity (CHI) is a trans-NIH resource whose mission is to provide a collaborative hub of advanced translational immunology for NIH clinical and pre-clinical studies. This uniquely structured Read More...

Back Services: We offer a limited sample processing service using standard SEC-MALS and FFF protocols.  This service is intended for the occasional users of this system.  Researchers who expect to use this instrument Read More...

Back Services: We offer a limited sample processing service using standard SEC-MALS and FFF protocols.  This service is intended for the occasional users of this system.  Researchers who expect to use this instrument Read More...

02/08/2021 - Presenter: Dr. Marjan Gucek, director for the NHLBI Proteomic Core Summary: “Proteomics Core provides access to mass spectrometry and gel based proteomics for identification and quantitation of proteins and their post-translational modifications (PTM). Our Read More...

01/12/2022 - Recent technological advances in science provide novel opportunities to unravel the complex biology of diseases. Immunological changes in translational settings are often highly dynamic and involve multiple interconnected biological systems. We will discuss a Read More...

03/17/2021 - Register/Join The focus of this webinar will be on two aspects of integrative analysis and translational research in the field of estrogen receptor-positive (ER+) breast cancer research. Namely, Dr. Meenakshi Anurag will discuss Read More...

09/25/2024 - Please join us on Wednesday, September 25, 2024, where Gina Kuffel, B.S., and Steph Singleton, M.S., will demo the newly launched Clinical and Translational Data Commons (CTDC).    As the newest addition to NCI's Read More...

05/29/2024 - Dear Colleagues,   As machine learning permeates across biomedical research, achieving optimal accuracy demands more than just model deployment.  Join us for a webinar where we explore post-processing techniques designed to Read More...

HBR and UHR MultiQC with pre- and post- alignment statistics

HBR and UHR MultiQC with pre- and post- alignment statistics

Visualize alignment using IGV Post alignment QC Obtain expression counts

01/22/2026 - Attend this webinar to learn more about XNAT Scout—a new extension of the XNAT imaging informatics platform that’s designed to close the gap between artificial intelligence (AI) model development and clinical deployment. Read More...

06/25/2025 - Join tony Brook Univer ity&r quo; Dr. Joel altz a he di cu e : the role of pathology artificial intelligence (AI) in the creation of pathology imaging biomarker , including tumor infiltrating lymphocyte Read More...

09/26/2024 - Dr. Turkbey will discuss radiology, pathology, and multimodal AI models his NCI lab has developed for prostate cancer diagnosis and prognosis prediction.

06/06/2024 - The CCR Genomics Core Facility is pleased to host a virtual technology workshop with EpiCypher on CUT&RUN library prep/sequencing Presentation overview: The location of histone post-translational modifications and chromatin-associated proteins Read More...

09/27/2022 - Speaker: Neil L. Kelleher, Ph.D. Walter and Mary E. Glass Professor of Molecular Biosciences Professor of Chemistry in the Weinberg College of Arts and Sciences Professor of Medicine (Hematology & Oncology) in Read More...

FASTQC report for hcc1395_normal_rep1_trimmed_r1.fastq.gz FASTQC report for hcc1395_normal_rep1_trimmed_r2.fastq.gz

Picard is a set of command line tools for manipulating high- throughput sequencing (HTS) data and formats such as SAM/ BAM/CRAM and VCF. (mark pcr duplicates) Samtools provide various utilities for manipulating alignments in Read More...

RSeQC package provides a number of useful modules that can comprehensively evaluate high throughput sequence data especially RNA-seq data. “Basic modules” quickly inspect sequence quality, nucleotide composition bias, PCR bias and GC bias, while “RNA-seq Read More...

We now know enough to put our new skills to use to make a volcano plot from RNASeq data. A volcano plot is a type of scatterplot that shows statistical significance (P value) versus magnitude Read More...

02/17/2023 - Dr. Brendan Miller is a post-doctoral research fellow at Johns Hopkins University in the Department of Biomedical Engineering. On Friday Feb 17, 1:00-2:00 PM, he will be discussing some tools he has recently helped develop Read More...

09/10/2021 - The National Institutes of Health (NIH) Office of Data Science Strategy hosts a seminar series to highlight exemplars of data sharing and reuse on the second Friday of each month at noon ET. The Read More...

I recommend saving the object post filtering to work with downstream. This way you can return to this point should you need to. saveRDS(adp_filt,"../outputs/adp_merge_filt.rds")

When loading tabular data with readr , the default object created will be a tibble . Tibbles are like data frames with some small but apparent modifications. For example, they can have numbers for column names, and Read More...

Technical Replicates It’s generally accepted that they are not necessary because of the low technical variation in RNASeq experiments Biological Replicates (Always useful) Not strictly needed for the identification of novel transcripts and transcriptome Read More...

We practice. The more you use unix and bash scripting the better you will become. You will need to learn how to troubleshoot error messages. Often this will involve googling the error in reference to Read More...

No summary available.

Long read sequencing was recently named 2022’s method of the year by Nature Methods . Long read sequencing technologies, those that generate sequence reads with lengths of 10s of kilobases or longer have several advantages over Read More...

Now that we know how to create a PCA biplot, let's use what we have learned to also make a volcano plot. A volcano plot is a type of scatterplot that shows statistical significance ( Read More...

07/23/2025 - This presentation will explore the next emerging stage where biobanking is characterised by being part of system - Biobanking 4.0. Biobanking has always been about data generation with tissue specimens providing the biological and genomic Read More...

06/13/2025 - Dr. Fuhai Li,&nb p;A ociate Profe or at the chool of Medicine and Computer cience & Engineering, Wa hington Univer ity, will pre ent novel approache that combine large language Read More...

The computational chemistry and protein modeling team in the Advanced Biomedical Computational Science (ABCS) group provides novel solutions in structural modeling and computational chemistry. Computational scientists in the group collaborate with NCI researchers by using Read More...

Bioinformatics support to CCR investigators is provided by: CCR Collaborative Bioinformatics Resource (CCBR) The CCR Collaborative Bioinformatics Resource (CCBR) is a resource group which provides a mechanism for CCR researchers to obtain many different types Read More...

01/10/2025 - NIH DIRECTORS SEMINAR SERIES In this presentation, Dr. Scholz will discuss the approach to tackling complex neurodegenerative diseases using modern genomic tools, focusing on Lewy body dementia, a major research area in her lab. Read More...

01/09/2025 - Alzheimer’s Disease (AD) presents significant challenges in prevention and treatment despite decades of research advancements. Innovative AI/ML approaches enable analysis of real-world data sources, such as electronic health records (EHRs) Read More...

11/26/2024 - Dr. Daniel Orringer received his M.D. from The Ohio State University, completed his residency in neurological surgery at the University of Michigan Health System, and fellowship training in neuro-oncology at the Massachusetts General-Brigham Read More...

09/12/2024 - This course provides detailed information on managing and sharing data from the first data planning stage, through the data life cycle, to data archiving, and finally to selecting an appropriate repository for data preservation. Read More...

08/29/2024 - Dr. Mardis is an internationally recognized expert in cancer genomics, with ongoing interests in the integrated characterization of cancer genomes, defining DNA-based somatic and germline interactions and RNA-based pathways, and immune microenvironments that lead Read More...

07/18/2024 - This class will provide an overview of the data collection process for your review – whether scoping or systematic. The importance of data cleaning for consistency to ensure accurate identification of comparable outcome Read More...

Integration is the process of aligning the same cell types across samples, treatments, data sets, batches, etc. Clustering should represent biological differences and not technical artifacts. Integration is not always necessary. You should run through Read More...

05/20/2024 - Hybrid (in-person location in Rockville, MD) Virtual attending via  WebEx Meeting, link will be available two weeks prior to the meeting date . Attend the  2024 Co-Clinical Imaging Research Resource Program (CIRP) Read More...

05/17/2024 - This course provides detailed information on managing and sharing data from the first data planning stage, through the data life cycle, to data archiving, and finally to selecting an appropriate repository for data preservation. Read More...

05/16/2024 - This course provides detailed information on managing and sharing data from the first data planning stage, through the data life cycle, to data archiving, and finally to selecting an appropriate repository for data preservation. Read More...

03/27/2024 - On Wednesday, March 27th, at 9:00 a.m., in Building 37, Room 4041/4107, and online. In-person attendance is encouraged.  Dr. Khan is the Deputy Chief of the Genetics Branch and Head of the Oncogenomics Section, Read More...

03/06/2024 - The NCI Cancer Diagnosis Program in the Division of Cancer Treatment and Diagnosis is hosting a workshop, “Digital Pathology Imaging (DPI) in Cancer Clinical Trials and Research.” This workshop will Read More...

01/26/2024 - This course provides detailed information on managing and sharing data from the first data planning stage, through the data life cycle, to data archiving, and finally to selecting an appropriate repository for data preservation. Read More...

01/25/2024 - This course provides detailed information on managing and sharing data from the first data planning stage, through the data life cycle, to data archiving, and finally to selecting an appropriate repository for data preservation. Read More...

01/10/2024 - Our series of talks continues next month with two 20-minute presentations focused on single cell genomics studies in the model organism zebrafish.  There will be light refreshments and we encourage attendees to Read More...

Download the data using prefetch and fasterq-dump . {{Sdet}} Solution{{Esum}} cd raw_data cat ../sra_id.txt | while read sra_id; do prefetch $sra_id; fasterq-dump $sra_id; gzip ${sra_id}*.fastq;done {{Edet}} What Read More...

Rarefaction is the process of subsampling reads without replacement to a defined sequencing depth, thereby creating a standardized library size across samples. Any sample with a total read count less than the defined sequencing depth Read More...

This course will use code and data from the QIIME2 Cancer Microbiome Intervention tutorial from the QIIME 2 website. The data used herein were published in Liao et al. 2021 and Taur et al. 2018 . In particular, Taur Read More...

Past versions of dplyr included powerful variants of filter , select , and other functions to help perform tasks across columns. You may see functions such as filter_all , filter_if , and filter_at . Functions like these Read More...

Check for primers Generate an ASV count table and representative sequence file Understand the difference between OTU picking and denoising The two primary files that will be used throughout any microbiome analysis are the feature Read More...

We are going to eliminate some samples based on the timing of collection. We are interested in only the samples collected between ten days prior to their hematopoietic cell transplantation and seventy days post transplantation. Read More...

Like most of NGS data analysis, the complexity of RNA- Seq data analysis revolves around data and information management and the dealing with “unexpected” issues. Consider the simplest experiment (Two conditions three replicates) 6-12 fastq Read More...

Mostly Computational intensive task requiring signigicant computer hardware. Quality Control Sample quality and consistency Is Trimming appropriate - quality/adaptors Alignment/Mapping Reference Target (Sequence and annotation) Alignment Program Alignment Parameters Mark Duplicates Post-Alignment Quality Read More...

In this lesson, we will continue to use the Human Brain Reference (HBR) and Universal Human Reference (UHR) data and we will Learn to align the sequencing data to reference genome using HISAT2, which is Read More...

In this lesson, we will continue to use the Human Brain Reference (HBR) and Universal Human Reference (UHR) data and we will Learn to align the sequencing data to reference genome using HISAT2, which is Read More...

Scatter plots and plot customization Objectives Learn to customize your ggplot with labels, axes, text annotations, and themes. Learn how to make and modify scatter plots to make fairly different overall plot representations. Load a Read More...

01/13/2026 - The past decade has witnessed thriving cell atlas research activities in elucidating human cell types and their organization principles. The NIH BRAIN Initiative launched a pilot 3-year BRAIN Initiative Cell Census Consortium (BICCC) in 2014, Read More...

04/16/2025 - Updated Location: ATRF, Frederick MD, Main Auditorium What to bring:  Laptop capable of connecting to internet via NIH wifi For questions or to register, please contact Amy Stonelake ( amy.stonelake@nih.gov ) Read More...

04/15/2025 - What to bring:  Laptop capable of connecting to internet via NIH  wifi Are you looking to expand the reach of your sequencing to enable what long read technologies can provide?& Read More...

01/22/2025 - Alzheimer’s Disease (AD) presents significant challenges in prevention and treatment despite decades of research advancements. Innovative AI/ML approaches enable analysis of real-world data sources, such as electronic health records (EHRs) Read More...

12/03/2024 - This one and a half hour online training  will provide a demonstration of how to build a Bulk RNA-Seq data analysis pipeline using a fastq file. Partek  Flow   Read More...

09/23/2024 - Come to the Fair!  In the morning session, several different groups will speak about their training and education programs. The afternoon session will be devoted to learning about research using AI across Read More...

07/11/2024 - Please join us for this special event featuring three speakers on the topic of Single-Cell Spatial Transcriptomics. George Zaki, Ph.D., Director, Applied Scientific Computing, BACS, The Frederick National Lab for Cancer Research, NCI/ Read More...

05/22/2024 - Are you attending the 2024  AMIA Clinical Informatics Conference ? Join NCI Fellow, Austin Fitts, as he presents on the  National Childhood Cancer Registry  (NCCR) during the May 22 afternoon sessions. Read More...

The Advanced Biomedical Computational Science (ABCS) group focuses on applications of bioinformatics, computational and data science, and artificial intelligence to support NCI researchers. ABCS provides: • Subject matter expertise in genomics, proteomics, and imaging. • Machine learning/ Read More...

03/05/2024 - This in-person workshop will show participants how to identify cell types based on statistics, visualization, and canonical markers. One Peripheral blood mononuclear cells (PBMCs) sample will be used to illustrate a basic Single Cell Read More...

These steps can be used to create a publish worthy figure. For example, let's create a volcano plot of our differential expression results. A volcano plot is a type of scatterplot that shows statistical Read More...

Many graphs, like scatterplots, plot the raw values of your dataset. Other graphs, like bar charts, calculate new values to plot: bar charts, histograms, and frequency polygons bin your data and then plot bin counts, Read More...

Try googling your problem or using some other search engine. rseek is an R specific search engine that searches several R related sites. If using google directly, make sure you use R to tag your Read More...

01/26/2024 - The RDI SIG is a trans-institute group whose investigators apply informatics approach to curate, harmonize, standardize, and analyze biomedical data obtained from a variety of resources (i.e., gene sequences, bioassays, electronic health records Read More...

The two methods used for denoising on QIIME 2 include: DADA2 - Uses a run specific error profile - Unclear how an incomplete run profile would impact results - There is a method available for Pacbio Read More...

We will import a small subset of fastq files to demonstrate initial sequence processing steps. The main questions we need to answer to import our raw data are: Is the data demultiplexed or multiplexed? Often Read More...

There are two additional functions from Tidyr that are very useful for organizing data: unite() and separate() . These are used to split or combine columns. For example, you may have noticed that our feature column Read More...

12/08/2023 - This presentation will discuss strategies and policies for effective sharing and reuse of large multidimensional datasets. Dr. Espinosa will discuss his experiences as a data generator, data analyst, collaborator, teacher, and mentor through the Read More...

11/16/2023 - This class will provide a demonstration of how to identify cell types based on statistics, visualization, and canonical markers. One Peripheral blood mononuclear cells (PBMCs) sample will be used to illustrate a basic Single Read More...

10/03/2023 - Multiplexed antibody-based imaging enables the detailed characterization of molecular and cellular organization in tissues. Significant advances in the field now allow high-parameter data collection (60+ targets); however, considerable expertise and capital are needed to validate Read More...

Data Analysis Overview RNASEQ - Data Analysis WorkFlow Mostly Computational intensive task requiring signigicant computer hardware. Quality Control Sample quality and consistency Is Trimming appropriate - quality/adaptors Alignment/Mapping Reference Target (Sequence and annotation) Read More...

Genomic variations are typically categorized into different classes and are often denoted with a shortened acronym: SNP, a single nucleotide polymorphism - A change of a single base. INDEL, an insertion or a deletion - Read More...

Interactive nodes are suitable for testing/debugging cpu-intensive code, pre/post-processing of data, graphical application, and to GUI interface to application. To start an interactive node, type "sinteractive" at the command line "$& Read More...

Bioinformatics for beginners Module 2: Introduction to RNA sequencing In this module, we will use the Human Brain Reference and Universal Human Reference RNA sequencing datasets to learn about RNA sequencing. Each lesson will be followed Read More...

Now that our HISAT2 indices have been built and the text file with the sample IDs has been generated, we can do the actual alignment. First, change into the ~/biostar_class/snidget/snidget_hisat2 folder Read More...

Alignment RNASeq Mapping Challenges The majority of mRNA derived from eukaryotes is the result of splicing together discontinuous exons, and this creates specific challenges for the alignment of RNASEQ data. Mapping Challenges Reads not perfect Read More...

Objectives Review the grammar of graphics template. Learn about the statistical transformations inherent to geoms. Learn more about fine tuning figures with labels, legends, scales, and themes. Learn how to save plots with ggsave() . Review Read More...

Lesson 3: Creating a feature table Lesson Objectives Check for primers Generate an ASV count table and representative sequence file Understand the difference between OTU picking and denoising The two primary files that will be used Read More...

Objectives Review the grammar of graphics template. Learn about the statistical transformations inherent to geoms. Learn more about fine tuning figures with labels, legends, scales, and themes. Learn how to save plots with ggsave() . Review Read More...

Listed below are the video recordings of past BTEP events (classes, seminars, workshops). Videos are hosted on various servers and may play slightly differently. Some videos may be downloaded for local viewing. Recorded Videos of Read More...

One particular critique of differential expression in single cell RNASeq analysis is p-value "inflation," where the p-values get so small that there are far too many genes exist with p-values below 0.05, even after Read More...

Now, that we have clusters, we can use differential expression analysis to uncover markers that define our clusters. These markers can be used to assign cell types to our clusters. First, because we are working Read More...

Learning Objectives This tutorial was designed to demonstrate common secondary analysis steps in a scRNA-Seq workflow. We will start with a merged Seurat Object with multiple data layers representing multiple samples. Throughout this tutorial we Read More...

1. Introduction and Learning Objectives This tutorial has been designed to demonstrate common secondary analysis steps in a scRNA-Seq workflow. We will start with a merged Seurat Object with multiple data layers representing multiple samples that Read More...

Learning Objectives To understand: 1. the difference between R and RStudioIDE. 2. how to work within the RStudio environment including: creating an Rproject and Rscript navigating between directories using functions obtaining help how R can enhance data Read More...

Practice Lesson 2 For the help sessions, we will work on processing sequences generated in Zhang Z, Feng Q, Li M, Li Z, Xu Q, Pan X, Chen W. Age-Related Cancer-Associated Microbiota Potentially Promotes Oral Squamous Read More...

Lesson 2: Getting Started with QIIME2 Lesson Objectives Obtain sequence data and sample metadata Import data and metadata Discuss other useful QIIME2 features including view QIIME2, provenance tracking, and the QIIME2 forum. DNAnexus DNAnexus provides a Read More...

Data import and reshape Objectives 1. Learn to import multiple data types 2. Data reshape with tidyr : pivot_longer() , pivot_wider() , separate() , and unite() Installing and loading packages So far we have only worked with objects that Read More...

Lesson 4: Feature table filtering, taxonomic classification, and phylogeny Learning objectives learn how to apply different types of filtering to your ASV table and representative sequence data. classify your ASVs. Generate a phylogenetic tree. Now that Read More...

Lesson 5: Microbial diversity, alpha rarefaction, alpha diversity Learning Objectives Understand the difference between alpha and beta diversity Introduce several alpha diversity metrics Understand what rarefaction is and why it is important Introduce the debate regarding Read More...

Introduction to dplyr and the %>% Objectives Today we will begin to wrangle data using the tidyverse package, dplyr . To this end, you will learn: how to filter data frames using dplyr how to employ Read More...

This page uses content directly from the Biostar Handbook by Istvan Albert. Remember to activate the bioinformatics environment. conda activate bioinfo The jellyfish program is dependent on a program called "gcc" which is Read More...

Step 1 for generating bigWig files is to convert the BAM alignment results to a bedGraph file that contains coverage along genomic regions. Enchancing your vocabulary: BED file - this is also known as Browser Extensible Read More...

RNA-SEQ Overview What is RNASEQ ? RNA-Seq (RNA sequencing), uses next-generation sequencing (NGS) to reveal the presence and quantity of RNA in a biological sample at a given moment. (Wikipedia) Strictly speaking this could be any Read More...

Lesson 13: Aligning raw sequences to reference genome Before getting started, remember to be signed on to the DNAnexus GOLD environment. Lesson 11 Review In Lesson 11 we learned to aggregate multiple FASTQC reports into one using MultiQC, Read More...