Alignments for a candidate for aruI in Escherichia coli BW25113

GapMind for catabolism of small carbon sources

Alignments for a candidate for aruI in Escherichia coli BW25113

Align Probable 2-ketoarginine decarboxylase AruI; 2-oxo-5-guanidinopentanoate decarboxylase; 5-guanidino-2-oxopentanoate decarboxylase; EC 4.1.1.75 (characterized)
to candidate 1936210 b0077 acetolactate synthase III large subunit (NCBI)

Query= SwissProt::Q9HUI8
         (559 letters)



>FitnessBrowser__Keio:1936210
          Length = 574

 Score =  224 bits (570), Expect = 9e-63
 Identities = 168/537 (31%), Positives = 260/537 (48%), Gaps = 27/537 (5%)

Query: 30  LTAGQALVRLLANYGVDTVFGIPGVHTLELYRGLPG-SGIRHVLTRHEQGAGFMADGYAR 88
           L+  + +VR L + GV  VFG PG   L++Y  L    GI HVL RHEQ A  MADG AR
Sbjct: 4   LSGAEMVVRSLIDQGVKQVFGYPGGAVLDIYDALHTVGGIDHVLVRHEQAAVHMADGLAR 63

Query: 89  VSGKPGVCFVITGPGVTNVATAIGQAYADSVPLLVISSVNHSASLGKGWGCLHETQDQRA 148
            +G+ GV  V +GPG TN  T I  AY DS+PL+V+S    ++ +  G+    E  D   
Sbjct: 64  ATGEVGVVLVTSGPGATNAITGIATAYMDSIPLVVLSGQVATSLI--GYDAFQEC-DMVG 120

Query: 149 MTAPITAFSALALSPEQLPELIARAYAVFDSERPRPVHISIPLDVL--AAPVAHDWSAAV 206
           ++ P+   S L    E +P+++ +A+ +  S RP PV + +P D+L  A  + + W  +V
Sbjct: 121 ISRPVVKHSFLVKQTEDIPQVLKKAFWLAASGRPGPVVVDLPKDILNPANKLPYVWPESV 180

Query: 207 ARRPGRGVPCSE--ALRAAAERLAAARRPMLIAGGGALAAG--EALAALSERLAAPLFTS 262
           + R            ++ A + L AA++P++  GGGA+ AG  + L    E L  P+  S
Sbjct: 181 SMRSYNPTTTGHKGQIKRALQTLVAAKKPVVYVGGGAITAGCHQQLKETVEALNLPVVCS 240

Query: 263 VAGKGLLPPDAPLNAGASLCVAPGWE---MIAEADLVLAVGTEMAD--TDFWRERLPLSG 317
           + G G  P      A   L +   +E    +  AD++ AVG    D  T+   +  P + 
Sbjct: 241 LMGLGAFPA-THRQALGMLGMHGTYEANMTMHNADVIFAVGVRFDDRTTNNLAKYCP-NA 298

Query: 318 ELIRVDIDPRKFNDFYPSAVALRGDARQTLEALLVRLPQEARDSAPAAAR-------VAR 370
            ++ +DIDP   +    + + + GDARQ LE +L  L QE+        R         R
Sbjct: 299 TVLHIDIDPTSISKTVTADIPIVGDARQVLEQMLELLSQESAHQPLDEIRDWWQQIEQWR 358

Query: 371 LRAEIRAAHAPLQALHQAILDRIAAALPADAFVSTDMTQLAYTGNYAFASRAPRSWLHPT 430
            R  ++      +   QA+++ +      DA+V++D+ Q        +    PR W++  
Sbjct: 359 ARQCLKYDTHSEKIKPQAVIETLWRLTKGDAYVTSDVGQHQMFAALYYPFDKPRRWINSG 418

Query: 431 GYGTLGYGLPAGIGAKLGAPQRPGLVLVGDGGFLYTAQELATASEELDSPLVVLLWNNDA 490
           G GT+G+GLPA +G K+  P+   + + GDG      QEL+TA  + + P++V+  NN  
Sbjct: 419 GLGTMGFGLPAALGVKMALPEETVVCVTGDGSIQMNIQELSTAL-QYELPVLVVNLNNRY 477

Query: 491 LGQIR--DDMLGLDIEPVGVLPRNPDFALLGRAYGCAVRQPQDLDELERDLRAGFGQ 545
           LG ++   DM+         +   PDF  L  AYG    Q     ELE  L     Q
Sbjct: 478 LGMVKQWQDMIYSGRHSQSYMQSLPDFVRLAEAYGHVGIQISHPHELESKLSEALEQ 534


Lambda     K      H
   0.321    0.136    0.412 

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: 698
Number of extensions: 42
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: 559
Length of database: 574
Length adjustment: 36
Effective length of query: 523
Effective length of database: 538
Effective search space:   281374
Effective search space used:   281374
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: 53 (25.0 bits)

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