Alignments for a candidate for hisI in Desulfovibrio vulgaris Hildenborough

GapMind for Amino acid biosynthesis

Alignments for a candidate for hisI in Desulfovibrio vulgaris Hildenborough

Align Histidine biosynthesis trifunctional protein; EC 3.5.4.19; EC 3.6.1.31; EC 1.1.1.23 (characterized)
to candidate 206223 DVU0796 histidinol dehydrogenase

Query= SwissProt::P00815
         (799 letters)



>MicrobesOnline__882:206223
          Length = 436

 Score =  232 bits (592), Expect = 3e-65
 Identities = 157/412 (38%), Positives = 225/412 (54%), Gaps = 18/412 (4%)

Query: 387 LVNPIIENVRDKGNSALLEYTEKFDGVKLSNPVLNAPFPEEYFEGLTEEMKEALDL---S 443
           +V  I+  VR KG+ AL EYT +FD    +  +L+    EE  + +     + + +   +
Sbjct: 34  VVRDILAAVRSKGDEALAEYTRRFDCPDFTPALLHVT-SEEVAQAVASVPADDIAIIRQA 92

Query: 444 IENVRKFHAAQLPTETLEVETQPGVLCSRFPRPIEKVGLYIPGGTA---ILPSTALMLGV 500
            +N+R FH AQ       V    G +  +   P+++ GLY+PGG      L S+ LM  +
Sbjct: 93  ADNIRSFHEAQKERSWF-VTHDDGTILGQKVTPVDRAGLYVPGGKGGDTPLLSSLLMNAI 151

Query: 501 PAQVAQCKEIVFASPPRKSDGKVSPEVVYVAEKVGASKIVLAGGAQAVAAMAYGTETIPK 560
           PAQVA    I  ASPPR  DG ++P ++  A  +G + I+ AG A AVAA A+GT+TI  
Sbjct: 152 PAQVAGVTSITVASPPRP-DGTLNPHLLAAAHILGITDIIRAGSAWAVAAFAFGTQTIAP 210

Query: 561 VDKILGPGNQFVTAAKMYVQNDTQALCSIDMPAGPSEVLVIADEDADVDFVASDLLSQAE 620
           VD I GPGN FVT AK  VQ       +IDM AGPSE+L++AD  A  D+VA+D+LSQAE
Sbjct: 211 VDVIAGPGNIFVTTAKRMVQGRV----AIDMIAGPSEILILADATARPDWVAADMLSQAE 266

Query: 621 HGIDSQVILVGVNLSEKKIQEIQDA-VHNQALQLPRVDIVRKCIAH-STIVLCDGYEEAL 678
           H   +  ILV    +E  + E   A +  Q   LPR DI RK +A    +V+    + A+
Sbjct: 267 HDPLASSILV---TTEPALAEAVTAELERQLATLPRADIARKALADWGAVVVVPDMDVAV 323

Query: 679 EMSNQYAPEHLILQIANANDYVKLVDNAGSVFVGAYTPESCGDYSSGTNHTLPTYGYARQ 738
            ++N+ APEHL +  A   +    + +AG++F+G Y+PE  GDY +G NH LPT G AR 
Sbjct: 324 AIANRVAPEHLEVLTAQPWELAGSLRHAGALFLGPYSPEPLGDYFAGPNHVLPTMGTARF 383

Query: 739 YSGANTATFQKFITAQNITPEGLENIGRAVMCVAKKEGLDGHRNAVKIRMSK 790
            S  +  TF K  +    +    E    AV  +A+ EGL+ H  +   R S+
Sbjct: 384 SSALSVQTFCKRTSIIAASRAFAERNADAVARLARLEGLEAHARSAASRNSQ 435


Lambda     K      H
   0.315    0.133    0.371 

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: 636
Number of extensions: 31
Number of successful extensions: 6
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: 799
Length of database: 436
Length adjustment: 37
Effective length of query: 762
Effective length of database: 399
Effective search space:   304038
Effective search space used:   304038
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: 42 (22.0 bits)
S2: 53 (25.0 bits)

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

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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