GapMind for catabolism of small carbon sources

 

Aligments for a candidate for fahA in Sinorhizobium meliloti 1021

Align fumarylacetoacetase (EC 3.7.1.2) (characterized)
to candidate SM_b21112 SM_b21112 bifunctional 2-hydroxyhepta-2,4-diene-1, 7-dioatesomerase/5-carboxymethyl-2-oxo-hex-3-ene-1, 7-dioatedecarboxylase

Query= BRENDA::A0A076VF18
         (308 letters)



>lcl|FitnessBrowser__Smeli:SM_b21112 SM_b21112 bifunctional
           2-hydroxyhepta-2,4-diene-1,
           7-dioatesomerase/5-carboxymethyl-2-oxo-hex-3-ene-1,
           7-dioatedecarboxylase
          Length = 281

 Score =  147 bits (371), Expect = 3e-40
 Identities = 108/287 (37%), Positives = 150/287 (52%), Gaps = 25/287 (8%)

Query: 22  YGEPQQDGDLGLLYSNG--ERITARVV-AAPWTSSPASTSSPRVLTVQTLLSPLA-PTDV 77
           YGEP Q+   GLL S+G    ++  V   A     P+       L V+TL +    P   
Sbjct: 6   YGEPGQEKP-GLLGSDGIIRDLSGHVSDLAAGALDPSKLDELANLDVETLPAVSGNPRLG 64

Query: 78  PAIRG------MGLQYSGDPANP-QDKPPVACLFFKASQALAGPGDDIVLPRLARDEKND 130
           P + G      +GL YS   A      PP   +F KA+ A+ GP DD+VLPR    EK D
Sbjct: 65  PCVAGTGKFICIGLNYSDHAAETGATVPPEPIIFMKATSAIVGPNDDLVLPR--GSEKTD 122

Query: 131 YEVELCVVLGKDAKDVDEKDAMSFVGGYCVVNDVSSRGL-CAKGGQWGMGKSYDTWCPFG 189
           +EVEL +V+GK AK V E +A+ +V GYC V+DVS R     + GQW  GKS DT+ P G
Sbjct: 123 WEVELGIVIGKTAKYVSEAEALDYVAGYCTVHDVSERAFQTERHGQWTKGKSCDTFGPTG 182

Query: 190 PCLVSPSALGADPHKLTITTHVNGKLAQKGNTADLVLKIPELIARLSHGTTLQAGSLILT 249
           P LV+   + ADP  L +   VNG+  Q G+T  +V     L++ LS   +L+ G +I T
Sbjct: 183 PWLVTKDEV-ADPQDLAMWLKVNGETMQDGSTKTMVYGAAHLVSYLSQFMSLRPGDIIST 241

Query: 250 GSP--IALGRKAPGDAVEQSPFMKDGDEIRCFVEGCGTLINSVRDEA 294
           G+P  + +G K P        ++K GD +   +EG G+    VR +A
Sbjct: 242 GTPPGVGMGMKPP-------RYLKAGDVVELGIEGLGSQKQRVRADA 281


Lambda     K      H
   0.316    0.135    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: 273
Number of extensions: 14
Number of successful extensions: 4
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: 308
Length of database: 281
Length adjustment: 26
Effective length of query: 282
Effective length of database: 255
Effective search space:    71910
Effective search space used:    71910
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: 48 (23.1 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:

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:

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:

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