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derip2-0.0.3
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مشاهده بیشترتوضیحات
Predict ancestral sequence of fungal repeat elements by correcting for RIP-like mutations in multi-sequence DNA alignments.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | derip2-0.0.3 |
| نام | derip2 |
| نسخه کتابخانه | 0.0.3 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Adam Taranto |
| ایمیل نویسنده | adam.taranto@anu.edu.au |
| آدرس صفحه اصلی | https://github.com/Adamtaranto/deRIP2 |
| آدرس اینترنتی | https://pypi.org/project/derip2/ |
| مجوز | MIT |
[](https://opensource.org/licenses/MIT)
# deRIP2
Predict progenitor sequence of fungal repeat families by correcting for RIP-like mutations
(CpA --> TpA) and cytosine deamination (C --> T) events.
Mask RIP or deamination events from input alignment as ambiguous bases.
# Table of contents
* [Algorithm overview](#algorithm-overview)
* [Options and usage](#options-and-usage)
* [Installation](#installation)
* [Example usage](#example-usage)
* [Standard options](#standard-options)
* [Issues](#issues)
* [License](#license)
## Algorithm overview
For each column in input alignment:
- Check if number of gapped rows is greater than max gap proportion. If true, then a gap is added to the output sequence.
- Set invariant column values in output sequence.
- If at least X proportion of bases are C/T or G/A (i.e. maxSNPnoise = 0.4, then at least 0.6 of positions in column must be C/T or G/A).
- If reaminate option is set then revert T-->C or A-->G.
- If reaminate is not set then check for number of positions in RIP dinucleotide context (C/TpA or TpG/A).
- If proportion of positions in column in RIP-like context => minRIPlike threshold, AND at least one substrate and one product motif (i.e. CpA and TpA) is present, perform RIP correction in output sequence.
- For all remaining positions in output sequence (not filled by gap, reaminate, or RIP-correction) inherit sequence from input sequence with the fewest observed RIP events (or greatest GC content if not RIP detected or multiple sequences sharing min-RIP count).
Outputs:
- Corrected sequence as fasta.
- Optional, alignment with:
- Corrected sequence appended.
- Corrected positions masked as ambiguous bases.
## Options and Usage
### Installation
Requires Python => v3.6
Clone from this repository:
```bash
% git clone https://github.com/Adamtaranto/deRIP2.git && cd deRIP2 && pip install -e .
```
Install from PyPi.
```bash
% pip install derip2
```
Test installation.
```bash
# Print version number and exit.
% derip2 --version
derip2 0.0.3
# Get usage information
% derip2 --help
```
### Example usage
For aligned sequences in 'myalignment.fa':
- Any column >= 70% gap positions is not corrected.
- Bases in column must be >= 80% C/T or G/A
- At least 50% bases must be in RIP dinucleotide context (C/T as CpA / TpA)
- Inherit all remaining uncorrected positions from least RIP'd sequence.
- Mask all substrate and product motifs from corrected columns as ambiguous bases (i.e. CpA to TpA --> YpA)
```bash
derip2 --inAln myalignment.fa --format fasta \
--maxGaps 0.7 \
--maxSNPnoise 0.2 \
--minRIPlike 0.5 \
--outDir results \
--outAlnName aligment_with_deRIP.fa \
--label deRIPseqName \
--mask > results/deRIPed_sequence.fa
```
**Output:**
- results/deRIPed_sequence.fa
- results/masked_aligment_with_deRIP.fa
### Standard options
```
Usage: derip2 [-h] [--version] -i INALN
[--format {clustal,emboss,fasta,fasta-m10,ig,nexus,phylip,phylip-sequential,phylip-relaxed,stockholm}]
[-g MAXGAPS] [-a] [--maxSNPnoise MAXSNPNOISE]
[--minRIPlike MINRIPLIKE] [--fillmaxgc] [--fillindex FILLINDEX]
[--mask] [--noappend] [-d OUTDIR] [--outAlnName OUTALNNAME]
[--outAlnFormat {fasta,nexus}] [--label LABEL]
Predict ancestral sequence of fungal repeat elements by correcting for RIP-
like mutations or cytosine deamination in multi-sequence DNA alignments.
Optionally, mask corrected positions in alignment.
optional arguments:
-h, --help show this help message and exit
--version show program's version number and exit
-i INALN, --inAln INALN
Multiple sequence alignment.
--format {clustal,emboss,fasta,fasta-m10,ig,nexus,phylip,phylip-sequential,phylip-relaxed,stockholm}
Format of input alignment. Default: fasta
-g MAXGAPS, --maxGaps MAXGAPS
Maximum proportion of gapped positions in column to be
tolerated before forcing a gap in final deRIP
sequence. Default: 0.7
-a, --reaminate Correct all deamination events independent of RIP
context. Default: False
--maxSNPnoise MAXSNPNOISE
Maximum proportion of conflicting SNPs permitted
before excluding column from RIP/deamination
assessment. i.e. By default a column with >= 0.5 'C/T'
bases will have 'TpA' positions logged as RIP events.
Default: 0.5
--minRIPlike MINRIPLIKE
Minimum proportion of deamination events in RIP
context (5' CpA 3' --> 5' TpA 3') required for column
to deRIP'd in final sequence. Note: If 'reaminate'
option is set all deamination events will be
corrected. Default 0.1
--fillmaxgc By default uncorrected positions in the output
sequence are filled from the sequence with the lowest
RIP count. If this option is set remaining positions
are filled from the sequence with the highest G/C
content. Default: False
--fillindex FILLINDEX
Force selection of alignment row to fill uncorrected
positions from by row index number (indexed from 0).
Note: Will override '--fillmaxgc' option.
--mask Mask corrected positions in alignment with degenerate
IUPAC codes.
--noappend If set, do not append deRIP'd sequence to output
alignment.
-d OUTDIR, --outDir OUTDIR
Directory for deRIP'd sequence files to be written to.
--outAlnName OUTALNNAME
Optional: If set write alignment including deRIP
corrected sequence to this file.
--outAlnFormat {fasta,nexus}
Optional: Write alignment including deRIP sequence to
file of format X. Default: fasta
--label LABEL Use label as name for deRIP'd sequence in output
files.
```
## Issues
Submit feedback to the [Issue Tracker](https://github.com/Adamtaranto/deRIP2/issues)
## License
Software provided under MIT license.
زبان مورد نیاز
| مقدار | نام |
|---|---|
| >= 3.6 | Python |
نحوه نصب
نصب پکیج whl derip2-0.0.3:
pip install derip2-0.0.3.whl
نصب پکیج tar.gz derip2-0.0.3:
pip install derip2-0.0.3.tar.gz