GapMind for catabolism of small carbon sources

 

Finding step dctQ for pyruvate catabolism in Pseudomonas stutzeri RCH2

2 candidates for dctQ: pyruvate TRAP transporter, small permease component

Score Gene Description Similar to Id. Cov. Bits Other hit Other id. Other bits
med Psest_1073 TRAP-type mannitol/chloroaromatic compound transport system, small permease component Tripartite ATP-independent periplasmic transporter, DctQ-2 component, component of The 2-ketomonocarboxylate transporter (presented in order of affinity - 2-oxovalerate [highest affinity, KD=0.1 μM], 2-oxoisovalerate, 2-oxobutyrate, 2-oxoisocaproate, 2-oxo-3-methylvalerate, pyruvate [lowest affinity, KD=3 μM]) (characterized) 33% 81% 86.3
lo Psest_4012 TRAP-type mannitol/chloroaromatic compound transport system, small permease component Alr3026 protein, component of The 2-oxo monocarboxylate transporter (Pernil et al., 2010). Transports pyruvate which is inhibited by various 2-ketoacids (characterized) 37% 96% 100.5 GtrA aka SLL1102, component of Tripartite glutamate:Na+ symporter 40% 101.3

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 dctQ

Or cluster all characterized dctQ 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