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; OAT; EC 2.6.1.13; Ornithine--oxo-acid aminotransferase (uncharacterized)
to candidate 201879 SO2741 adenosylmethionine--8-amino-7-oxononanoate aminotransferase (NCBI ptt file)

Query= curated2:Q89RB7
         (404 letters)



>FitnessBrowser__MR1:201879
          Length = 461

 Score =  136 bits (343), Expect = 1e-36
 Identities = 124/398 (31%), Positives = 193/398 (48%), Gaps = 43/398 (10%)

Query: 39  DGNRYLDCLSAYSAVSQGHCHPKILAAMVEQAHRLT-LTSRAFHNDQLAPFYEEIAALTG 97
           DG + +D  S++ A   G+ HP IL AM +Q H+L+ +      ++      +++ A+T 
Sbjct: 42  DGRKLIDGTSSWWACVHGYGHPAILTAMEQQLHQLSHVMFGGITHEPAIELCKKLLAMTC 101

Query: 98  SH--KVLPMNSGAEAVESAIK-SVRKW-GYEVKGVPDDQAE-IIVCADNFHGRTLGIVGF 152
               KV   +SG+ AVE AIK +++ W G ++      Q + I+     +HG T   +  
Sbjct: 102 EPLTKVFLCDSGSIAVEVAIKMALQYWQGQDLPLAQKAQKQRILTVKKGYHGDTFAAMSV 161

Query: 153 STDPETRGH--FG-----------PFAPGFRIIPFGDAAALEQAITP---NTVAFLVEPI 196
             DPE   H  FG           P  P    +   D A +++ +     +  A ++EPI
Sbjct: 162 C-DPEGGMHTMFGEAVIKQCFVDAPQTPFGESLHQDDLAPMQRILREQHQDIAAVIIEPI 220

Query: 197 -QGEAGVIIPPAGYFTKVRELCTANNVMLVLDEIQTGLGRTGKLLAEQHEGIEADVTLLG 255
            QG  G+    + Y   +R LC   NV+L+LDEI TG GRTGKL A +H  I  D+  LG
Sbjct: 221 MQGAGGMRFYSSEYLRGLRALCDEYNVLLILDEIATGFGRTGKLFAYEHTDITPDILCLG 280

Query: 256 KALAGGFYPVSAVLSNNEVLGTLRPG-----QHGSTFGGNPLACAVARAAMRVLVEEGMI 310
           KAL GG+  ++A L  + V   +         HG TF GNPLACA A A++ ++ ++   
Sbjct: 281 KALTGGYISLAATLCTDNVAQGISQSPAGVFMHGPTFMGNPLACAAACASLDLINQQEWP 340

Query: 311 ENAARQGARLLEGLKD-IRANTVREVRGRGLMLAVELHPEAGRARRYCEALQGK----GI 365
              A    ++   L D I   +V+ VR  G +  +E+H     A     ALQ +    G+
Sbjct: 341 AQVAAIEQQMQRELADAIDIPSVKAVRVLGAVGVLEMHQAVNTA-----ALQQQFVDLGV 395

Query: 366 LAKDTHGHTIRIAPPLVITS---DEVDWALEQFATTLT 400
             +    + I I PP VI+S    ++  A++Q A T+T
Sbjct: 396 WVR-PFANLIYIMPPYVISSAQLSQLTQAMKQVAATIT 432


Lambda     K      H
   0.319    0.136    0.405 

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: 458
Number of extensions: 24
Number of successful extensions: 3
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: 404
Length of database: 461
Length adjustment: 32
Effective length of query: 372
Effective length of database: 429
Effective search space:   159588
Effective search space used:   159588
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.4 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (21.8 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)
Rules (tab-delimited)
Protein sequences (fasta format)
Organisms (tab-delimited)
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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