GapMind for catabolism of small carbon sources


Finding step livG for L-phenylalanine catabolism in Shewanella oneidensis MR-1

3 candidates for livG: L-phenylalanine ABC transporter, ATPase component 2 (LivG)

Score Gene Description Similar to Id. Cov. Bits Other hit Other id. Other bits
lo SO3960 ABC transporter, ATP-binding protein (NCBI ptt file) ABC transporter ATP-binding protein (characterized, see rationale) 33% 97% 152.5 lipopolysaccharide ABC transporter, ATP-binding protein LptB; EC 3.6.3.- 75% 360.5
lo SO3602 sulfate ABC transporter, ATP-binding protein (NCBI ptt file) ABC transporter ATP-binding protein (characterized, see rationale) 33% 95% 133.3 CysA aka B2422, component of Sulfate/thiosulfate porter 57% 368.2
lo SO_3675 hemin importer ATP-binding subunit (RefSeq) High-affinity branched-chain amino acid transport ATP-binding protein LivG aka B3455, component of Leucine; leucine/isoleucine/valine porter (characterized) 30% 96% 105.9 Hemin import ATP-binding protein HmuV, component of The heme uptake porter, PhuTUV (transports one heme per reaction cycle) 46% 198.7

Confidence: high confidence medium confidence low confidence
transporter – transporters and PTS systems are shaded because predicting their specificity is particularly challenging.

Also see fitness data for the candidates

Definition of step livG

Or cluster all characterized livG proteins

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 against a database of manually-curated proteins (most of which are experimentally characterized) or by using HMMer. 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. 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 preprint 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