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GetTransTool

Extract longest transcript or longest CDS transcript from GTF annotation file or gencode transcripts fasta file.

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Install / Use

/learn @junjunlab/GetTransTool
About this skill

Quality Score

0/100

Supported Platforms

Universal

README

GetTransTool Package

There are four types of methods to extract longest transcript or longest CDS regeion with longest transcript from transcripts fasta file or GTF file.

  • 1.Extract longest transcript from gencode transcripts fasta file.

  • 2.Extract longest transcript from gtf format annotation file based on gencode/ensembl/ucsc database.

  • 3.Extract longest CDS regeion with longest transcript from gencode database transcripts fasta file.

  • 4.Extract longest CDS regeion with longest transcript from gtf format annotation file based on ensembl/ucsc database.

Install

$ pip install GetTransTool

Usage

1. get longest transcript from gencode transcripts fasta file:

help infomation:

$ GetLongestTransFromGencode -h
usage: GetLongestTransFromGencode --file gencode.vM28.transcripts.fa.gz --outfile longest_trans.fa

Get longest transcripts from gencode transcripts fasta file.

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  -f transfile, --file transfile
                        input your transcripts file with ".gz" format. (gencode.vM28.transcripts.fa.gz)
  -o longestfile, --outfile longestfile
                        output your longest transcript file. (longest_trans.fa)

Thank your for your support, if you have any questions or suggestions please contact me: 3219030654@stu.cpu.edu.cn.

usage:

$ GetLongestTransFromGencode --file gencode.vM28.transcripts.fa.gz --outfile longest_trans_gencode.fa
Your job is running, please wait...
Your job is done!
Running with 32.33 seconds!

there will be three files produced including name_changed.fa, longest_transcripts_info.csv, longest_trans_gencode.fa.

name_changed.fa:

>4933401J01Rik_ENSMUSG00000102693.2_ENSMUST00000193812.2_1070
AAGGAAAGAGGATAACACTTGAAATGTAAATAAAGAAAATACCTAATAAAAATAAATAAA
AACATGCTTTCAAAGGAAATAAAAAGTTGGATTCAAAAATTTAACTTTTGCTCATTTGGT
ATAATCAAGGAAAAGACCTTTGCATATAAAATATATTTTGAATAAAATTCAGTGGAAGAA
...

longest_transcripts_info.csv:

this is the longest transcripts exon length information.

fullname,gene_name,translength
snoZ196_ENSMUSG00002074855.1_ENSMUST00020182568.1_35,snoZ196,35
snoZ159_ENSMUSG00002075734.1_ENSMUST00020182611.1_87,snoZ159,87
n-R5s93_ENSMUSG00000119639.1_ENSMUST00000240071.1_119,n-R5s93,119
...

longest_trans_gencode.fa:

this is the filtered longest transcript fasta file.

>4933401J01Rik_ENSMUSG00000102693.2_ENSMUST00000193812.2_1070
AAGGAAAGAGGATAACACTTGAAATGTAAATAAAGAAAATACCTAATAAAAATAAATAAA
AACATGCTTTCAAAGGAAATAAAAAGTTGGATTCAAAAATTTAACTTTTGCTCATTTGGT
ATAATCAAGGAAAAGACCTTTGCATATAAAATATATTTTGAATAAAATTCAGTGGAAGAA
...

2. Extract longest transcript from gtf format annotation file based on gencode/ensembl/ucsc database:

help infomation:

$ GetLongestTransFromGTF -h
usage: GetLongestTransFromGTF --database ensembl --gtffile Homo_sapiens.GRCh38.101.gtf.gz --genome Homo_sapiens.GRCh38.dna.primary_assembly.fa.gz --outfile longest_trans.fa

Extract longest transcript from gtf format annotation file based on gencode/ensembl/ucsc database.

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  -d databse, --database databse
                        which annotation database you choose. (default="ensembl", ucsc/ensembl/gencode)
  -g gtffile, --gtffile gtffile
                        input your GTF file with ".gz" format.
  -fa genome, --genome genome
                        your genome fasta file matched with your GTF file with ".gz" format. (Homo_sapiens.GRCh38.dna.primary_assembly.fa.gz)
  -o longestfile, --outfile longestfile
                        output your longest transcript file. (longest_trans.fa)

Thank your for your support, if you have any questions or suggestions please contact me: 3219030654@stu.cpu.edu.cn.

usage:

$ GetLongestTransFromGTF --database ensembl --gtffile Homo_sapiens.GRCh38.103.gtf.gz --genome Homo_sapiens.GRCh38.dna.primary_assembly.fa.gz --outfile longest_trans_ensembl.fa
Your job is running, please wait...
Your job is done! 
Running with 159.51 seconds!

there will be three files produced including longest_transcripts_info.csv, longest_trans.gtf, longest_trans_ensembl.fa.

longest_transcripts_info.csv:

,transcript_length,gene_name
snoZ196_ENSG00000281780_ENST00000625269_snoRNA,89,snoZ196
hsa-mir-423_ENSG00000266919_ENST00000586878_lncRNA,94,hsa-mir-423
hsa-mir-1253_ENSG00000272920_ENST00000609567_lncRNA,105,hsa-mir-1253
...

longest_trans.gtf:

this is the gtf information for the longest transcripts.

1	havana	gene	11869	14409	.	+	.	gene_id "ENSG00000223972"; gene_version "5"; gene_name "DDX11L1"; gene_source "havana"; gene_biotype "transcribed_unprocessed_pseudogene";
1	havana	transcript	11869	14409	.	+	.	gene_id "ENSG00000223972"; gene_version "5"; transcript_id "ENST00000456328"; transcript_version "2"; gene_name "DDX11L1"; gene_source "havana"; gene_biotype "transcribed_unprocessed_pseudogene"; transcript_name "DDX11L1-202"; transcript_source "havana"; transcript_biotype "processed_transcript"; tag "basic"; transcript_support_level "1";
1	havana	exon	11869	12227	.	+	.	gene_id "ENSG00000223972"; gene_version "5"; transcript_id "ENST00000456328"; transcript_version "2"; exon_number "1"; gene_name "DDX11L1"; gene_source "havana"; gene_biotype "transcribed_unprocessed_pseudogene"; transcript_name "DDX11L1-202"; transcript_source "havana"; transcript_biotype "processed_transcript"; exon_id "ENSE00002234944"; exon_version "1"; tag "basic"; transcript_support_level "1";
1	havana	exon	12613	12721	.	+	.	gene_id "ENSG00000223972"; gene_version "5"; transcript_id "ENST00000456328"; transcript_version "2"; exon_number "2"; gene_name "DDX11L1"; gene_source "havana"; gene_biotype "transcribed_unprocessed_pseudogene"; transcript_name "DDX11L1-202"; transcript_source "havana"; transcript_biotype "processed_transcript"; exon_id "ENSE00003582793"; exon_version "1"; tag "basic"; transcript_support_level "1";
1	havana	exon	13221	14409	.	+	.	gene_id "ENSG00000223972"; gene_version "5"; transcript_id "ENST00000456328"; transcript_version "2"; exon_number "3"; gene_name "DDX11L1"; gene_source "havana"; gene_biotype "transcribed_unprocessed_pseudogene"; transcript_name "DDX11L1-202"; transcript_source "havana"; transcript_biotype "processed_transcript"; exon_id "ENSE00002312635"; exon_version "1"; tag "basic"; transcript_support_level "1";
1	havana	gene	14404	29570	.	-	.	gene_id "ENSG00000227232"; gene_version "5"; gene_name "WASH7P"; gene_source "havana"; gene_biotype "unprocessed_pseudogene";

longest_trans_ensembl.fa:

>DDX11L1_ENSG00000223972_ENST00000456328_transcribed_unprocessed_pseudogene
GTTAACTTGCCGTCAGCCTTTTCTTTGACCTCTTCTTTCTGTTCATGTGTATTTGCTGTC
TCTTAGCCCAGACTTCCCGTGTCCTTTCCACCGGGCCTTTGAGAGGTCACAGGGTCTTGA
TGCTGTGGTCTTCATCTGCAGGTGTCTGACTTCCAGCAACTGCTGGCCTGTGCCAGGGTG
...

for ucsc:

$ GetLongestTransFromGTF --database ucsc --gtffile hg19.ncbiRefSeq.gtf.gz --genome hg19.fa.gz --outfile longest_trans_ucsc.fa

3. Extract longest CDS regeion with longest transcript from gencode database transcripts fasta file.

help infomation:

$ GetCDSLongestFromGencode -h
usage: GetCDSLongestFromGencode --file gencode.vM28.pc_transcripts.fa.gz --outfile longest_cds_trans.fa

Extract longest CDS regeion with longest transcript from gencode database transcripts fasta file.

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit
  -f transfile, --file transfile
                        input your protein-coding transcripts file with ".gz" format. (gencode.vM28.pc_transcripts.fa.gz)
  -o longestfile, --outfile longestfile
                        output your longest transcript file. (longest_cds_trans.fa)

Thank your for your support, if you have any questions or suggestions please contact me: 3219030654@stu.cpu.edu.cn.

usage:

$ GetCDSLongestFromGencode --file gencode.vM28.pc_transcripts.fa.gz --outfile longest_cds_trans_gencode.fa
Your job is running, please wait...
Your job is done! 
Running with 17.67 seconds!

there will be four files produced including name_changed.fa, All_transcripts_cds_info.csv, longest_cds_transcripts_info.csv, longest_cds_trans_gencode.fa.

name_changed.fa:

>Xkr4_ENSMUSG00000051951.6_ENSMUST00000070533.5_151_2094_3634
GCGGCGGCGGGCGAGCGGGCGCTGGAGTAGGAGCTGGGGAGCGGCGCGGCCGGGGAAGGA
AGCCAGGGCGAGGCGAGGAGGTGGCGGGAGGAGGAGACAGCAGGGACAGGTGTCAGATAA
AGGAGTGCTCTCCTCCGCTGCCGAGGCATCATGGCCGCTAAGTCAGACGGGAGGCTGAAG
...

All_transcripts_cds_info.csv:

this is the all transcripts cds and exon length information.

fullname,gene_name,translength,cdslength
>mt-Nd6_ENSMUSG00000064368.1_ENSMUST00000082419.1_1_519_519,>mt-Nd6,519,519
>mt-Nd5_ENSMUSG00000064367.1_ENSMUST00000082418.1_1_1824_1824,>mt-Nd5,1824,1824
>mt-Nd4l_ENSMUSG00000065947.1_ENSMUST00000084013.1_1_297_297,>mt-Nd4l,297,297
...

longest_cds_transcripts_info.csv:

fullname,gene_name,translength,cdslength
>mt-Nd6_ENSMUSG00000064368.1_ENSMUST00000082419.1_1_519_519,>mt-Nd6,519,519
>mt-Nd5_ENSMUSG00000064367.1_ENSMUST00000082418.1_1_1824_1824,>mt-Nd5,1824,1824
>mt-Nd4l_ENSMUSG00000065947.1_ENSMUST00000084013.1_1_297_297,>mt-Nd4l,297,297
...

longest_cds_trans_gencode.fa:

>Xkr4_ENSMUSG00000051951.6_ENSMUST00000070533.5_151_2094_3634
GCGGCGGCGGGCGAGCGGGCGCTGGAGTAGGAGCTGGGGAGCGGCGCGGCCGGGGAAGGA
AGCCAGGGCGAGGCGAGGAGGTGGCGGGAGGAGGAGACAGCAGGGACAGGTGTCAGATAA
AGGAGTGCTCTCCTCCGCTGCCGAGGCATCATGG

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junjunlab/GetTransTool

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Python

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Audited on Dec 27, 2025

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