Alignments for a candidate for CGL in Shewanella amazonensis SB2B

GapMind for Amino acid biosynthesis

Alignments for a candidate for CGL in Shewanella amazonensis SB2B

Align cystathionine beta-synthase (O-acetyl-L-serine) (EC 2.5.1.134) (characterized)
to candidate 6937071 Sama_1242 methionine gamma-lyase (RefSeq)

Query= BRENDA::O05394
         (379 letters)



>FitnessBrowser__SB2B:6937071
          Length = 392

 Score =  321 bits (823), Expect = 2e-92
 Identities = 177/388 (45%), Positives = 240/388 (61%), Gaps = 11/388 (2%)

Query: 2   KKKTLMIHGGITGDEKTGAVSVPIYQVSTYKQPKA--------GQHTGYEYSRTANPTRT 53
           K  TL++HGG   D   GA+  P+YQ +T+    A        G   GY Y+R  NPT  
Sbjct: 6   KLATLVVHGGHERDAM-GALVSPLYQSATFVFDNARQGGARFAGDEAGYIYTRLGNPTTA 64

Query: 54  ALEALVTELESGEAGYAFSSGMAAITAVMML-FNSGDHVVLTDDVYGGTYRVMTKVLNRL 112
            LE  +  LE  E   A +SGM A++A ++   + GDH+V +  VYG T+ +MT ++ R 
Sbjct: 65  ELERKLAILEGAEEAAATASGMGAVSAALLANLSQGDHLVASRAVYGCTFALMTDLMARF 124

Query: 113 GIESTFVDTSSREEVEKAIRPNTKAIYIETPTNPLLKITDLTLMADIAKKAGVLLIVDNT 172
           GIE T VD      +E AIR NT+AI+ ETP NP L + DL  +A I K+ G+L IVDNT
Sbjct: 125 GIEVTLVDFKEPAAIEAAIRDNTRAIFCETPVNPHLDVFDLDAIAAIGKRHGLLTIVDNT 184

Query: 173 FNTPYFQQPLTLGADIVLHSATKYLGGHSDVVGGLVVTASKELGEELHFVQNSTGGVLGP 232
           F TP  Q+PL  G D+V+HSATKYL GH DV+ G+V  + +++ +  + +    G V+ P
Sbjct: 185 FMTPLLQRPLDHGIDMVIHSATKYLNGHGDVIAGMVAGSKEQIDKVKYQIIKDIGAVMSP 244

Query: 233 QDSWLLMRGIKTLGLRMEAIDQNARKIASFLENHPAVQTLYYPGSSNHPGHELAKTQGAG 292
            D+WL++RG+KTL +R++    NA KIA FLE HP V  +YYP   +H GH    TQ   
Sbjct: 245 HDAWLILRGMKTLDVRVQRHCDNAEKIADFLEAHPRVGRVYYPALKSHQGHRFLGTQMRR 304

Query: 293 FGGMISFDIGSE-ERVDAFLGNLKLFTIAESLGAVESLISVPARMTHASIPRERRLELGI 351
            GG+I+F++ S+ E    F+ +LK+FTIA SLG  ESLI  PA MTH+    E RLE GI
Sbjct: 305 AGGVIAFELKSDIEGSINFVDSLKVFTIAVSLGDAESLIQHPASMTHSPYTPEARLEAGI 364

Query: 352 TDGLIRISVGIEDAEDLLEDIGQALENI 379
           TD L+RISVG+ED +DL+ D+ QAL  I
Sbjct: 365 TDTLLRISVGLEDVDDLIADLSQALAKI 392


Lambda     K      H
   0.316    0.134    0.375 

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: 396
Number of extensions: 17
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: 379
Length of database: 392
Length adjustment: 30
Effective length of query: 349
Effective length of database: 362
Effective search space:   126338
Effective search space used:   126338
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: 50 (23.9 bits)

This GapMind analysis is from Jul 25 2024. The underlying query database was built on Jul 25 2024.

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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
the source code
instructions for running GapMind on your computer
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