GapMind for catabolism of small carbon sources

 

Finding step SM_b21220 for D-glucosamine (chitosamine) catabolism in Phaeobacter inhibens BS107

2 candidates for SM_b21220: ABC transporter for D-Glucosamine, permease component 2

Score Gene Description Similar to Id. Cov. Bits Other hit Other id. Other bits
lo PGA1_c16700 binding protein-dependent transport system, inner membrane component ABC transporter for D-Glucosamine, permease component 2 (characterized) 35% 94% 169.5 Maltose transport system permease protein malF aka TT_C1628, component of The trehalose/maltose/sucrose/palatinose porter (TTC1627-9) plus MalK1 (ABC protein, shared with 3.A.1.1.24) (Silva et al. 2005; Chevance et al., 2006). The receptor (TTC1627) binds disaccharide alpha-glycosides, namely trehalose (alpha-1,1), sucrose (alpha-1,2), maltose (alpha-1,4), palatinose (alpha-1,6) and glucose 38% 189.1
lo PGA1_c07870 alpha-glucoside transport system permease protein AglF ABC transporter for D-Glucosamine, permease component 2 (characterized) 33% 91% 136.7 ABC transporter for D-Maltose and D-Trehalose, permease component 1 64% 426.8

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 SM_b21220

Or cluster all characterized SM_b21220 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