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Tools for working with agp files

agptools 최신버젼 다운로드

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# agptools
Tools for working with agp files

Full documentation at [github pages][ghpages].

## Introduction
The [AGP][agp] format is a tab-separated table format describing how components
of a genome assembly fit together. NCBI accepts assemblies for submission in
the format of a fasta file giving the sequences of components (usually contigs)
along with an AGP file showing how these components are assembled into larger
pieces like scaffolds or chromosomes. For this reason, scaffolders such as
[SALSA][salsa] output this format alongside the fasta file of the scaffolded
assembly containing gaps and all.

Unfortunately, scaffolding never really works perfectly, so you invariably have
to correct mistakes or add in other sources of data such as synteny with a
related species or a phyiscal map to get an assembly to chromosome level. While
you could perform this manual curation process by editing the fasta file of
scaffolds, I think it is a lot easier to leave the fasta file of contigs intact
and move things around in the AGP file. For example, let's say the scaffolder
misorients a contig. Fixing this in the fasta would require taking a chunk from
the middle of a sequence, reverse orienting it, and pasting it back together.
Fixing it in the AGP file is as simple as finding the line corresponding to
that contig and changing the character in the orientation column from '+' to
'-'.

agptools is a suite of scripts for performing edits to an AGP file during this
manual curation stage of genome assembly. It contains modules for operations
you might want to perform on an agp file, like splitting a contig or scaffold
into multiple pieces, joining various scaffolds together into a superscaffold,
reverse-complementing a piece of a scaffold, transforming a bed file from
contig into scaffold coordinates, and removing or renaming scaffolds. Each of
these use cases is explained in depth in the manual.

## Installation
Unfortunately, `agptools` was taken on PyPI, so it is called `bio_agptools` instead.
```bash
pip install bio_agptools
```

[agp]: https://www.ncbi.nlm.nih.gov/assembly/agp/AGP_Specification/
[salsa]: https://github.com/marbl/SALSA
[ghpages]: https://warrenlab.github.io/agptools/

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