Alignments for a candidate for lutB in Escherichia coli BW25113

GapMind for catabolism of small carbon sources

Alignments for a candidate for lutB in Escherichia coli BW25113

Align Lactate utilization protein B (characterized)
to candidate 14445 b0307 predicted amino acid dehydrogenase with NAD(P)-binding domain and ferridoxin-like domain (NCBI)

Query= SwissProt::Q81GA4
         (473 letters)



>FitnessBrowser__Keio:14445
          Length = 475

 Score =  565 bits (1455), Expect = e-165
 Identities = 270/469 (57%), Positives = 345/469 (73%), Gaps = 2/469 (0%)

Query: 1   MSMKISEKKFNDRVGDGIQDSFMRGAVSSAQTRLYTNRLKAADELGNWEEWRELGEQIRQ 60
           MS+K S   F  R+   I+D  MR AV++AQ R+  NR K  DELG+WEEWR+   QIR 
Sbjct: 1   MSIKTSNTDFKTRIRQQIEDPIMRKAVANAQQRIGANRQKMVDELGHWEEWRDRAAQIRD 60

Query: 61  HTLENLDYYLMQLSENVSKRGGHVYFAKTKEEAAKYIQDVAKKKQAKKVVKSKSMVTEEI 120
           H L NLD YL QLSE V++ GGHVYFA+TKE+A +YI  VA++K A+KVVKSKSMVTEEI
Sbjct: 61  HVLSNLDAYLYQLSEKVTQNGGHVYFARTKEDATRYILQVAQRKNARKVVKSKSMVTEEI 120

Query: 121 SMNHALEEIGCEVLESDLGEYILQVDNDPPSHIIAPALHKNRTQIRDVFKEKLGYENSDD 180
            +NH L++ G +V+E+DLGEYILQ+D DPPSH++ PA+HK+R QIR V  E+LGYE  + 
Sbjct: 121 GVNHVLQDAGIQVIETDLGEYILQLDQDPPSHVVVPAIHKDRHQIRRVLHERLGYEGPET 180

Query: 181 PYEMTKFVRKQLREKFMDAEIGVTGCNFAVANTGSLCLVTNEGNADLVMSIPKTQIAVMG 240
           P  MT F+R+++RE F+ AEIG+TGCNFAVA TGS+CLVTNEGNA +  ++PKT IAVMG
Sbjct: 181 PEAMTLFIRQKIREDFLSAEIGITGCNFAVAETGSVCLVTNEGNARMCTTLPKTHIAVMG 240

Query: 241 MERMVPTMEELDVLVGLLCRSAVGQKLTSYVT-VAGPIQEEEVDGPEEFHLVVVDNGRSQ 299
           MER+ PT  E+DVL+ +L RSAVG +LT Y T + GP +   VDGPEEFHLV+VDNGRS+
Sbjct: 241 MERIAPTFAEVDVLITMLARSAVGARLTGYNTWLTGPREAGHVDGPEEFHLVIVDNGRSE 300

Query: 300 ILGSEFRSVLQCIRCAACVNVCPVYRHVGGHSYGSIYSGPIGAVLTPLLGGYDDYKELPY 359
           +L SEFR VL+CIRC AC+N CP YRH+GGH YGSIY GPIGAV++PLLGGY D+K+LPY
Sbjct: 301 VLASEFRDVLRCIRCGACMNTCPAYRHIGGHGYGSIYPGPIGAVISPLLGGYKDFKDLPY 360

Query: 360 ASSLCGACTEACPVKIPLHDLLLKHRQVIVEQEGRAPLAEKLAMKMFSMGASSAALYKMG 419
           A SLC AC   CPV+IPL  L+L+HR+V+ E +G    AE+ A+KMF+   S   L+K+G
Sbjct: 361 ACSLCTACDNVCPVRIPLSKLILRHRRVMAE-KGITAKAEQRAIKMFAYANSHPGLWKVG 419

Query: 420 SKMAPAAMSPFTSGNRVSKGVGPLKNWTDIREFPAPSKERFRDWYKDHK 468
                 A S F +G +     G + +W + R+ P    E FR W+K H+
Sbjct: 420 MMAGAHAASWFINGGKTPLKFGAISDWMEARDLPEADGESFRSWFKKHQ 468


Lambda     K      H
   0.317    0.133    0.391 

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: 673
Number of extensions: 22
Number of successful extensions: 5
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: 473
Length of database: 475
Length adjustment: 33
Effective length of query: 440
Effective length of database: 442
Effective search space:   194480
Effective search space used:   194480
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 Sep 17 2021. The underlying query database was built on Sep 17 2021.

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Steps (tab-delimited)
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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
the source code
instructions for running GapMind on your computer

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