Aligments for a candidate for gatA in Escherichia coli BW25113

GapMind for catabolism of small carbon sources

Aligments for a candidate for gatA in Escherichia coli BW25113

Align The galacturonic acid (galacturonate) uptake porter, GatA, of 518 aas and 12 TMSs (characterized)
to candidate 18059 b4031 D-xylose transporter (NCBI)

Query= TCDB::A2R3H2
         (518 letters)



>lcl|FitnessBrowser__Keio:18059 b4031 D-xylose transporter (NCBI)
          Length = 491

 Score =  198 bits (504), Expect = 3e-55
 Identities = 144/502 (28%), Positives = 240/502 (47%), Gaps = 66/502 (13%)

Query: 9   VYLLTAVAYSGSLLFGYDTGVM-GSVLSLTSFKEDFGIPTGSSGFASSKSSEISSNVVSL 67
           ++ +T VA  G LLFGYDT V+ G+V SL +      +       + S ++ +    V+ 
Sbjct: 10  IFSITLVATLGGLLFGYDTAVISGTVESLNT------VFVAPQNLSESAANSLLGFCVAS 63

Query: 68  LTAGCFFGAIFAAPLNERIGRRYALMIFTVIFLIGAA-----------------VQVASK 110
              GC  G       + R GRR +L I  V+F I                    V V   
Sbjct: 64  ALIGCIIGGALGGYCSNRFGRRDSLKIAAVLFFISGVGSAWPELGFTSINPDNTVPVYLA 123

Query: 111 HHIGQIYGGRVIAGLGIGGMSSITPVFVSENCPPSIRGRVAGMFQEFLVIGSTFAYWLDY 170
            ++ +    R+I G+G+G  S ++P++++E  P  IRG++    Q  ++ G    Y ++Y
Sbjct: 124 GYVPEFVIYRIIGGIGVGLASMLSPMYIAELAPAHIRGKLVSFNQFAIIFGQLLVYCVNY 183

Query: 171 GVSLHIPSS---TKQWRVPVAVQLIPGGLMLLGLFFLKESPRWLAGKGRHEEALQSLAYI 227
            ++    +S   T  WR   A + IP  L L+ L+ + ESPRWL  +G+ E+A   L  I
Sbjct: 184 FIARSGDASWLNTDGWRYMFASECIPALLFLMLLYTVPESPRWLMSRGKQEQAEGILRKI 243

Query: 228 RNESPDSEEIQKEFAEIRAAIDEEVAATEGLTYKEFIQPSNLKRFG-----FAFTLMLSQ 282
              +  ++ +Q    EI+ ++D     T G           L  FG         L + Q
Sbjct: 244 MGNTLATQAVQ----EIKHSLDHG-RKTGG----------RLLMFGVGVIVIGVMLSIFQ 288

Query: 283 QFTGTNSIGYYAPEIFQTIGLSATNSSLFATGVYGTVKVVATAIFLFVGIDRWGRKLSLV 342
           QF G N + YYAPE+F+T+G S T+ +L  T + G + +  T + +   +D++GRK   +
Sbjct: 289 QFVGINVVLYYAPEVFKTLGAS-TDIALLQTIIVGVINLTFTVLAIMT-VDKFGRKPLQI 346

Query: 343 GGSIWMASMMFIIGAVLATHPPDTSASGVSQASIAMVVMIYLYVIGYSASWGPTPWVYVS 402
            G++ MA  MF +G    T  P           +A++ M++ YV  ++ SWGP  WV +S
Sbjct: 347 IGALGMAIGMFSLGTAFYTQAPGI---------VALLSMLF-YVAAFAMSWGPVCWVLLS 396

Query: 403 EIFPTRLRSYGVGLAATSQWLWSFVVTEITPK-------AVHNIGWRTFLMFGIFCVAMC 455
           EIFP  +R   + +A  +QWL ++ V+   P          H     ++ ++G   V   
Sbjct: 397 EIFPNAIRGKALAIAVAAQWLANYFVSWTFPMMDKNSWLVAHFHNGFSYWIYGCMGVLAA 456

Query: 456 VFVIVFAKETKGRSLEDMDILF 477
           +F+  F  ETKG++LE+++ L+
Sbjct: 457 LFMWKFVPETKGKTLEELEALW 478


Lambda     K      H
   0.323    0.137    0.411 

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: 606
Number of extensions: 38
Number of successful extensions: 8
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: 518
Length of database: 491
Length adjustment: 34
Effective length of query: 484
Effective length of database: 457
Effective search space:   221188
Effective search space used:   221188
Neighboring words threshold: 11
Window for multiple hits: 40
X1: 16 ( 7.5 bits)
X2: 38 (14.6 bits)
X3: 64 (24.7 bits)
S1: 41 (22.0 bits)
S2: 52 (24.6 bits)

This GapMind analysis is from Sep 17 2021. The underlying query database was built on Sep 17 2021.

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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.

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 catabolism of small carbon sources