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VDJ assignment and antibody sequence annotation. Scalable from a single sequence to billions of sequences.

Project description

# AbStar

VDJ assignment and antibody sequence annotation. Scalable from a single sequence to billions of sequences.

### install pip install abstar

### use

To run AbStar on a single FASTA or FASTQ file: abstar -i <input-file> -o <output-directory> -t <temp-directory>

To iteratively run AbStar on all files in an input directory: abstar -i <input-directory> -o <output-directory> -t <temp-directory>

### additional options -l, –log Change the log file location. Default is <output_directory>/mongo.log.

-m, –merge Input directory should contain paired FASTQ (or gzipped FASTQ) files. Paired files will be merged with PANDAseq prior to processing with AbAnalysis.

-b, –basespace Download a sequencing run from BaseSpace, which is Illumina’s cloud storage environment. Since Illumina sequencers produce paired-end reads, –merge is also set.

-u N, –uaid N Sequences contain a unique antibody ID (UAID, or molecular barcode) of length N. The uaid will be parsed from the beginning of each input sequence and added to the JSON output. Negative values result in the UAID being parsed from the end of the sequence.

-s, –species Select the species from which the input sequences are derived. Supported options are ‘human’, ‘mouse’, and ‘macaque’. Default is ‘human’.

-c, –cluster Runs AbStar in distributed mode on a Celery cluster.

-h, –help Prints detailed information about all runtime options.

-D –debug Much more verbose logging.

### helper scripts Two helper scripts are included: batch_mongoimport automates the import of multiple JSON output files into a MongoDB database. make_basespace_credfile makes a credentials file for BaseSpace, which is required if downloading sequences from BaseSpace with Abstar. Developer credentials are required, and the process for obtaining them is explained [here](

### requirements Python 2.7 (3.x probably doesn’t work, but hasn’t been tested) abtools biopython celery pymongo scikit-bio

All of the above dependencies can be installed with pip, and will be installed automatically when installing AbStar with pip. If you’re new to Python, a great way to get started is to install the [Anaconda Python distribution](, which includes pip as well as a ton of useful scientific Python packages.

sequence merging requires [PANDAseq]( batch_mongoimport requires [MongoDB]( BaseSpace downloading requires the [BaseSpace Python SDK](

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