GapMind for catabolism of small carbon sources

 

Protein Pf6N2E2_3801 in Pseudomonas fluorescens FW300-N2E2

Annotation: Histidine ABC transporter, ATP-binding protein (TC 3.A.1)

Length: 276 amino acids

Source: pseudo6_N2E2 in FitnessBrowser

Candidate for 5 steps in catabolism of small carbon sources

Pathway Step Score Similar to Id. Cov. Bits Other hit Other id. Other bits
L-histidine catabolism hutV hi ABC transporter for L-Histidine, ATPase component (characterized) 100% 100% 536.2 OtaA, component of The salt-induced glycine betaine OtaABC transporter 60% 325.1
L-proline catabolism hutV med HutV aka HISV aka R02702 aka SMC00670, component of Uptake system for hisitidine, proline, proline-betaine and glycine-betaine (characterized) 66% 97% 364.8 ABC transporter for L-Histidine, ATPase component 100% 536.2
L-tryptophan catabolism ecfA1 med Energy-coupling factor transporter ATP-binding protein EcfA1; Short=ECF transporter A component EcfA; EC 7.-.-.- (characterized, see rationale) 40% 75% 134.4 ABC transporter for L-Histidine, ATPase component 100% 536.2
L-proline catabolism proV lo glycine betaine/l-proline transport atp-binding protein prov (characterized) 59% 66% 310.8 ABC transporter for L-Histidine, ATPase component 100% 536.2
L-proline catabolism opuBA lo BusAA, component of Uptake system for glycine-betaine (high affinity) and proline (low affinity) (OpuAA-OpuABC) or BusAA-ABC of Lactococcus lactis). BusAA, the ATPase subunit, has a C-terminal tandem cystathionine β-synthase (CBS) domain which is the cytoplasmic K+ sensor for osmotic stress (osmotic strength)while the BusABC subunit has the membrane and receptor domains fused to each other (Biemans-Oldehinkel et al., 2006; Mahmood et al., 2006; Gul et al. 2012). An N-terminal amphipathic α-helix of OpuA is necessary for high activity but is not critical for biogenesis or the ionic regulation of transport (characterized) 55% 67% 300.8 ABC transporter for L-Histidine, ATPase component 100% 536.2

Sequence Analysis Tools

View Pf6N2E2_3801 at FitnessBrowser

PaperBLAST (search for papers about homologs of this protein)

Search CDD (the Conserved Domains Database, which includes COG and superfam)

Search PFam (including for weak hits, up to E = 1)

Predict protein localization: PSORTb (Gram negative bacteria)

Predict transmembrane helices and signal peptides: Phobius

Check the SEED with FIGfam search

Fitness BLAST: loading...

Sequence

MNNAAISKIEVKNVFKIFGNRSKEALELIRQNKTKDQVLAETGCVVGVNDLSLSIGTGEI
FVIMGLSGSGKSTLVRHFNRLIDPTSGAILVDGEDILQLDMDALREFRRHKISMVFQSFG
LLPHKSVLDNVAYGLKVRGESKQVCAERALHWINTVGLKGYENKYPHQLSGGMRQRVGLA
RALAADTDIILMDEAFSALDPLIRAEMQDQLLELQKTLHKTIVFITHDLDEAVRIGNRIA
ILKDGKLIQVGTPREILHSPADEYVDRFVQRRAAVV

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