Seqanswers Leaderboard Ad

Collapse

Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • How to annotate genes from gene prediction

    Hi,
    For a completly novel genome I used a gene prediction software called SNAP (http://korflab.ucdavis.edu/software.html) and it provided me a GFF and Fasta file (see below).

    SNAP's GFF:
    Code:
    XA8	SNAP	Einit	6161	7325	-5.800	-	.	XA8r-snap.4
    XA8	SNAP	Eterm	5974	6008	5.650	-	.	XA8r-snap.4
    SNAP's fasta:
    Code:
    >XA8-snap.4
    MAAHPPTLLDRAYGVNNIKSHIPIILDNNDHNYDAWRELLLTHCQSFEVA
    GHLDGTLLPTDDNDQLWIKRDGLVKLWLYGTISKDLFRSVFKTGGTSREI
    WTRIENYFRDNKEARAIRLDHELRNKTIGDLTIHAYRQDLKSISELLANV
    ESPVSERTLVTYMINGLSAKFDNIINVIMHRQPFPTFEQARSMLILEEER
    LNKGDKSPLVKDSPSSDKVLNVSATSQPPATTQQPQQQQRFYNNRGSKRN
    NRGRGRNYNNNQRPMYNQWGVPFWPNAYSFWGNQQQAPWGQQQFNNQGIL
    GPRPSQQAHQVQTQGQFPSAAPFVPTTDFASAFNTMTLTDPTDHQWYMDS
    GATAHLTNNPGNLKSILNTGTKQTVKVANGDIIPITKTGPSNSTDNSPQ*
    In next step I used the SNAP's fasta file to Blastp against UniRef90 and I have got the following XML file:

    Code:
    <?xml version="1.0"?>
    <!DOCTYPE BlastOutput PUBLIC "-//NCBI//NCBI BlastOutput/EN" "http://www.ncbi.nlm.nih.gov/dtd/NCBI_BlastOutput.dtd">
    <BlastOutput>
      <BlastOutput_program>blastp</BlastOutput_program>
      <BlastOutput_version>BLASTP 2.2.26+</BlastOutput_version>
      <BlastOutput_reference>Stephen F. Altschul, Thomas L. Madden, Alejandro A. Sch&amp;auml;ffer, Jinghui Zhang, Zheng Zhang, Webb Miller, and David J. Lipman (1997), &quot;Gapped BLAST and PSI-BLAST: a new generation of protein database search programs&quot;, Nucleic Acids Res. 25:3389-3402.</BlastOutput_reference>
      <BlastOutput_db>/sw/db/uniprot/uniref90</BlastOutput_db>
      <BlastOutput_query-ID>Query_1</BlastOutput_query-ID>
      <BlastOutput_query-def>XA8-snap.1</BlastOutput_query-def>
      <BlastOutput_query-len>96</BlastOutput_query-len>
      <BlastOutput_param>
        <Parameters>
          <Parameters_matrix>BLOSUM62</Parameters_matrix>
          <Parameters_expect>1e-05</Parameters_expect>
          <Parameters_gap-open>11</Parameters_gap-open>
          <Parameters_gap-extend>1</Parameters_gap-extend>
          <Parameters_filter>F</Parameters_filter>
        </Parameters>
      </BlastOutput_param>
      <BlastOutput_iterations>
        <Iteration>
          <Iteration_iter-num>4</Iteration_iter-num>
          <Iteration_query-ID>Query_4</Iteration_query-ID>
          <Iteration_query-def>XA8-snap.4</Iteration_query-def>
          <Iteration_query-len>400</Iteration_query-len>
          <Iteration_hits>
            <Hit>
              <Hit_num>1</Hit_num>
              <Hit_id>UR090:UniRef90_Q9FX16</Hit_id>
              <Hit_def>F12G12.10 protein n=1 Tax=Arabidopsis thaliana RepID=Q9FX16_ARATH</Hit_def>
              <Hit_accession>UR090:UniRef90_Q9FX16</Hit_accession>
              <Hit_len>308</Hit_len>
              <Hit_hsps>
                <Hsp>
                  <Hsp_num>1</Hsp_num>
                  <Hsp_bit-score>278.1</Hsp_bit-score>
                  <Hsp_score>710</Hsp_score>
                  <Hsp_evalue>1.87694e-87</Hsp_evalue>
                  <Hsp_query-from>10</Hsp_query-from>
                  <Hsp_query-to>290</Hsp_query-to>
                  <Hsp_hit-from>8</Hsp_hit-from>
                  <Hsp_hit-to>286</Hsp_hit-to>
                  <Hsp_query-frame>0</Hsp_query-frame>
                  <Hsp_hit-frame>0</Hsp_hit-frame>
                  <Hsp_identity>146</Hsp_identity>
                  <Hsp_positive>192</Hsp_positive>
                  <Hsp_gaps>10</Hsp_gaps>
                  <Hsp_align-len>285</Hsp_align-len>
                  <Hsp_qseq>DRAYGVNNIKSHIPIILDNNDHNYDAWRELLLTHCQSFEVAGHLDGTLLPTDDNDQLWIKRDGLVKLWLYGTISKDLFRSVFKTGGTSREIWTRIENYFRDNKEARAIRLDHELRNKTIGDLTIHAYRQDLKSISELLANVESPVSERTLVTYMINGLSAKFDNIINVIMHRQPFPTFEQARSMLILEEERLNKGDK-SPLVKDSPSSDKVLNVSATSQPPATT-QQPQQQQRFYNNRGSKRN-NRGRGRNYNNNQRPMYNQWGV-PFWPNAYSFWGNQQQAPWG</Hsp_qseq>
                  <Hsp_hseq>EQIYGVSNIKSHIPVMLDIEESNYDAWRELFLTHCLSFDVMGHIDGTLLPTNANDVNWQKRDGIVKLSLYGTLTPKQFQGSFVTSSTSRDIWLRIKNQFRNNKDARALRLDSELRTKDIGDMRVADYYRKMKKLADSLRNVDVPVTDRNLVMYVLNGLNPKFDNIINVIKHRQPFPSFDDAATMLQEEEDRLKRAIKPNPTHVDHSSSSTVL--ACSEAPPVTNFQRSGGNQMGYRGRGRGNNIFRGRGGRFSYYNMPTFNSWNRPPFYQNSYQMWNH----PWG</Hsp_hseq>
                  <Hsp_midline>++ YGV+NIKSHIP++LD  + NYDAWREL LTHC SF+V GH+DGTLLPT+ ND  W KRDG+VKL LYGT++   F+  F T  TSR+IW RI+N FR+NK+ARA+RLD ELR K IGD+ +  Y + +K +++ L NV+ PV++R LV Y++NGL+ KFDNIINVI HRQPFP+F+ A +ML  EE+RL +  K +P   D  SS  VL  + +  PP T  Q+    Q  Y  RG   N  RGRG  ++    P +N W   PF+ N+Y  W +    PWG</Hsp_midline>
                </Hsp>
              </Hit_hsps>
            </Hit>
    ...
    How would be possible to generate a GFF3 or GTF file with annotations for SNPeff (http://snpeff.sourceforge.net/)?


    Is there any good annotation pipeline avaible?

    Thank you in advance.
    Last edited by mictadlo; 09-17-2013, 06:00 PM.

Latest Articles

Collapse

  • seqadmin
    Essential Discoveries and Tools in Epitranscriptomics
    by seqadmin


    The field of epigenetics has traditionally concentrated more on DNA and how changes like methylation and phosphorylation of histones impact gene expression and regulation. However, our increased understanding of RNA modifications and their importance in cellular processes has led to a rise in epitranscriptomics research. “Epitranscriptomics brings together the concepts of epigenetics and gene expression,” explained Adrien Leger, PhD, Principal Research Scientist on Modified Bases...
    Yesterday, 07:01 AM
  • seqadmin
    Current Approaches to Protein Sequencing
    by seqadmin


    Proteins are often described as the workhorses of the cell, and identifying their sequences is key to understanding their role in biological processes and disease. Currently, the most common technique used to determine protein sequences is mass spectrometry. While still a valuable tool, mass spectrometry faces several limitations and requires a highly experienced scientist familiar with the equipment to operate it. Additionally, other proteomic methods, like affinity assays, are constrained...
    04-04-2024, 04:25 PM

ad_right_rmr

Collapse

News

Collapse

Topics Statistics Last Post
Started by seqadmin, 04-11-2024, 12:08 PM
0 responses
39 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-10-2024, 10:19 PM
0 responses
41 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-10-2024, 09:21 AM
0 responses
35 views
0 likes
Last Post seqadmin  
Started by seqadmin, 04-04-2024, 09:00 AM
0 responses
55 views
0 likes
Last Post seqadmin  
Working...
X