IGH Analysis updated

The analysis of the Human IGH dataset has now been updated to determine novel sequences based on the actual V length inferred by igblast, enabling greater recognition of variation at the 3′ end. To provide greater detail on the analysis, we now provide the commit id of the pipeline version used for analysis in the… Continue reading IGH Analysis updated

Introduction to OGRDB

Introduction to OGRDB In recent years it has become possible to sequence immune receptor repertoires (immunoglobulins and T cell receptors) at great depth. The accurate analysis of these repertoires requires a comprehensive understanding of the germline genes that give rise to the repertoire through V(D)J gene recombination. Even for well-studied species such as humans and… Continue reading Introduction to OGRDB

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New inferred sequences accepted by IMGT

A new batch of inferred receptor sequences, submitted for review through OGRDB, has been accepted by IMGT and should be added to their reference sets shortly. This batch included the first IGK and IGL alleles. We have now affirmed a total of 32 sequences, details of which can be found on the Sequences page.

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Submitting inferences to OGRDB

If you have identified previously undocumented alleles in AIRR-Seq repertoires, we invite you to submit them to OGRDB for review and possible inclusion in published germline reference sets. At present, you can submit human IGH, IGK and IGL V-sequences for consideration. We hope to extend this to cover more species and loci soon. Qualification criteria… Continue reading Submitting inferences to OGRDB

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Creating a select set

A select set is a set of reads taken from a single repertoire that directly support a specific inference. In outline, the process to create the set is as follows: For a paired-end-read dataset, merge all paired-end reads Align reads to the inferred allele reference Filter the output to an identity of at least 96%… Continue reading Creating a select set

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Creating an OGRDB Submission

Pre-Requisites Before submitting inferred sequences with OGRDB, you should have run OGRDBstats on each repertoire, and created select sets and sequence definitions in NCBI or ENA: otherwise, please follow steps 1-3 in the overall submission process before continuing. You should therefore have: OGRDBstats output (pdf and csv) for each repertoire from which inferences have been… Continue reading Creating an OGRDB Submission

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IARC Submission Guide Updated

We welcome submissions of previously undocumented alleles of human receptor genes. The Submission Guide explains the process, which involves deposition of sequences and sequence sets in NIH or ENA repositories. Your submission will be reviewed by AIRR‘s Inferred Allele Review Committee, and, if there is sufficient evidence, the sequence will be published on this site… Continue reading IARC Submission Guide Updated

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Genomic data in VDJbase

Genomic data is organised into ‘genomic sets’: typically a genomic set will contain data relating to a single locus of a species. At the moment, VDJbase holds genomic data for Rhesus Macaque but not for Human: when entering the Genomic pages, be sure to select Rhesus Macaque as the species at the top left hand… Continue reading Genomic data in VDJbase