Alignments for a candidate for OAT in Shewanella oneidensis MR-1

GapMind for Amino acid biosynthesis

Alignments for a candidate for OAT in Shewanella oneidensis MR-1

Align ornithine aminotransferase; EC 2.6.1.13 (characterized)
to candidate 200454 SO1276 4-aminobutyrate aminotransferase (NCBI ptt file)

Query= CharProtDB::CH_122124
         (454 letters)



>FitnessBrowser__MR1:200454
          Length = 425

 Score =  218 bits (556), Expect = 2e-61
 Identities = 136/413 (32%), Positives = 215/413 (52%), Gaps = 43/413 (10%)

Query: 37  PVVFARAQGTSVWDPEGRHYLDFLSAYSAVNQGHCHPKLVAALVDQASRLT-----LSSR 91
           P+  ARA+  SVWD EGR ++DF    + +N GH HPK+ AA+  Q    +     +   
Sbjct: 25  PIFTARAENASVWDVEGREFIDFAGGIAVLNTGHLHPKVKAAVAAQLEDFSHTCFMVLGY 84

Query: 92  AFYNDVFPKFAEMVTKYFGFDMVLPMNTGAEAVETGIKIARKWGYKVKGIPENEAIILSA 151
             Y  V  K  ++V   F     L   +G+EAVE  +K+AR +           A +++ 
Sbjct: 85  ESYIQVCEKLNQLVPGDFAKKTAL-FTSGSEAVENAVKVARAY--------TKRAGVIAF 135

Query: 152 ENNFHGRTMAAISLSSDPESRENYGPYVPNIG------------CTIPGTEKPITYNDKA 199
            + +HGRTMAA++L+          PY   +G            C + G       +  A
Sbjct: 136 TSGYHGRTMAALALTG------KVAPYSKGMGLMSANVFRAEFPCALHGVSDD---DAMA 186

Query: 200 ALREAFEKAG--SNLAAFLVEPIQGEAGIIVPDDDYLQLARSLCDQHNVLLICDEIQTGI 257
           ++   F+     S++AA ++EP+QGE G       ++Q  R+LCD+  ++LI DE+QTG 
Sbjct: 187 SIERIFKNDAEPSDIAAIILEPVQGEGGFYAVSPAFMQRLRALCDREGIMLIADEVQTGA 246

Query: 258 ARTGKLLCHEWSGIKPDMVLLGKAISGGMYPVSCVLGRKDVMLTVEPGTHGSTYGGNPLA 317
            RTG     E  G+  D+    K+I+GG +P+S + GR  VM  + PG  G TYGGNPLA
Sbjct: 247 GRTGTFFAMEQMGVSADITTFAKSIAGG-FPLSGITGRAQVMDAIGPGGLGGTYGGNPLA 305

Query: 318 CAVAIRALEVVQEENMVERAEKLGQAFRSGLEAIQ--NPIIQTVRGKGLLNAI-VIDESK 374
           CA A+  LEV +EE ++ERA  +G   +S L  +Q  +P I  VRG G +NAI ++++ K
Sbjct: 306 CAAALAVLEVFEEEKLLERANAIGDRIKSALNTMQVEHPQIADVRGLGAMNAIELMEDGK 365

Query: 375 TNGHTAWDLCMLMKEKG--LLAKPTHQNIIRLAPPLVITEEEIAKALEIIKAA 425
                   +    + +G  LL+  T+ N++R+  PL +++ ++   L I+K +
Sbjct: 366 PAPQYCAQILAEARNRGLILLSCGTYGNVLRILVPLTVSDTQLDAGLGILKTS 418


Lambda     K      H
   0.316    0.133    0.392 

Gapped
Lambda     K      H
   0.267   0.0410    0.140 


Matrix: BLOSUM62
Gap Penalties: Existence: 11, Extension: 1
Number of Sequences: 1
Number of Hits to DB: 428
Number of extensions: 21
Number of successful extensions: 7
Number of sequences better than 1.0e-02: 1
Number of HSP's gapped: 1
Number of HSP's successfully gapped: 1
Length of query: 454
Length of database: 425
Length adjustment: 32
Effective length of query: 422
Effective length of database: 393
Effective search space:   165846
Effective search space used:   165846
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.3 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.6 bits)
S2: 51 (24.3 bits)

This GapMind analysis is from Aug 03 2021. The underlying query database was built on Aug 03 2021.

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Steps (tab-delimited)
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Protein sequences (fasta format)
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About GapMind

Each pathway is defined by a set of rules based on individual steps or genes. Candidates for each step are identified by using ublast (a fast alternative to protein BLAST) against a database of manually-curated proteins (most of which are experimentally characterized) or by using HMMer with enzyme models (usually from TIGRFam). Ublast hits may be split across two different proteins.

A candidate for a step is "high confidence" if either:

ublast finds a hit to a characterized protein at above 40% identity and 80% coverage, and bits >= other bits+10.
- (Hits to curated proteins without experimental data as to their function are never considered high confidence.)
HMMer finds a hit with 80% coverage of the model, and either other identity < 40 or other coverage < 0.75.

where "other" refers to the best ublast hit to a sequence that is not annotated as performing this step (and is not "ignored").

Otherwise, a candidate is "medium confidence" if either:

ublast finds a hit at above 40% identity and 70% coverage (ignoring otherBits).
ublast finds a hit at above 30% identity and 80% coverage, and bits >= other bits.
HMMer finds a hit (regardless of coverage or other bits).

Other blast hits with at least 50% coverage are "low confidence."

Steps with no high- or medium-confidence candidates may be considered "gaps." For the typical bacterium that can make all 20 amino acids, there are 1-2 gaps in amino acid biosynthesis pathways. For diverse bacteria and archaea that can utilize a carbon source, there is a complete high-confidence catabolic pathway (including a transporter) just 38% of the time, and there is a complete medium-confidence pathway 63% of the time. Gaps may be due to:

our ignorance of proteins' functions,
omissions in the gene models,
frame-shift errors in the genome sequence, or
the organism lacks the pathway.

GapMind relies on the predicted proteins in the genome and does not search the six-frame translation. In most cases, you can search the six-frame translation by clicking on links to Curated BLAST for each step definition (in the per-step page).

For more information, see the paper from 2019 on GapMind for amino acid biosynthesis, the paper from 2022 on GapMind for carbon sources, or view the source code, or see changes to Amino acid biosynthesis since the publication.

If you notice any errors or omissions in the step descriptions, or any questionable results, please let us know

by Morgan Price, Arkin group, Lawrence Berkeley National Laboratory

GapMind for Amino acid biosynthesis