Contents
What is Mkfastq?
10x has developed cellranger mkfastq , a pipeline that wraps Illumina’s bcl2fastq and provides a number of convenient features in addition to the features of bcl2fastq : Translates 10x sample index names into the corresponding oligonucleotides in the sample index.
What is a BCL file?
Binary Base Call (BCL) files are the raw data files generated by the Illumina sequencers. FASTQ files have become the standard format for storing NGS data from Illumina sequencing systems, and can be used as input for a wide variety of secondary data analysis solutions.
How does RNA-Seq process data?
A typical RNA-seq experiment consists of the following steps:
- Design Experiment. Set up the experiment to address your questions.
- RNA Preparation. Isolate and purify input RNA.
- Prepare Libraries. Convert the RNA to cDNA; add sequencing adapters.
- Sequence. Sequence cDNAs using a sequencing platform.
- Analysis.
How to install cell Ranger on a cluster?
Installing the Cell Ranger software on a cluster is identical to installation on a local server. After confirming that the cellranger commands can run in single server mode, configure the job submission template that Cell Ranger uses to submit jobs to the cluster.
When to run cellranger pipelines in Cluster Mode?
This occurs when the job submission via qsub or bsub commands failed. The “tiny” dataset doesn’t stress the cluster, so it’s worthwhile to follow up with a more realistic test using one of our sample datasets. There are two subtle variants of running cellranger pipelines in cluster mode, each with their own pitfalls.
How to run cellranger on the head node?
Run cellranger with –jobmode=sge on the head node. Cluster mode was originally designed for this use case. However, this approach leaves mrp and mrjob running on the head node for the duration of the pipeline, and some clusters impose time limits to prevent long running processes.
What can cell Ranger be used for in HPC?
Cell Ranger is a set of analysis pipelines that process Chromium single-cell RNA-seq output to align reads, generate feature-barcode matrices and perform clustering and gene expression analysis. Note: At present, we are not providing References for any species.