GapMind for catabolism of small carbon sources

 

Finding step AZOBR_RS08235 for D-alanine catabolism in Sinorhizobium meliloti 1021

3 candidates for AZOBR_RS08235: D-alanine ABC transporter, permease component 1

Score Gene Description Similar to Id. Cov. Bits Other hit Other id. Other bits
hi SMc01951 high-affinity branched-chain amino acid ABC transporter permease L-proline and D-alanine ABC transporter, permease component 1 (characterized) 64% 100% 379.4 branched chain amino acid/phenylalanine ABC transporter membrane subunit LivH (EC 7.4.2.2) 49% 294.7
lo SMc02359 high-affinity branched-chain amino acid ABC transporter permease L-proline and D-alanine ABC transporter, permease component 1 (characterized) 35% 98% 164.1 ABC transporter membrane-spanning permease-branched chain amino acid transport, component of The branched chain hydrophobic amino acid transporter, LivJFGHM 32% 164.5
lo SMc03118 ABC transporter permease L-proline and D-alanine ABC transporter, permease component 1 (characterized) 32% 98% 153.3 BraD aka Bra2D, component of General L- (and D-)amino acid uptake porter (transports acidic, basic, polar, semipolar and hydrophobic amino acids). The amino and carboxyl groups do not need to be α since γ-aminobutyric acid (GABA) is a substrate. The system may function with additional binding proteins since L-alanine uptake is not dependent on BraC 34% 174.5

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 AZOBR_RS08235

Or cluster all characterized AZOBR_RS08235 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