GapMind for catabolism of small carbon sources

 

Finding step mglA for D-glucose catabolism in Dethiosulfovibrio salsuginis USBA 82

5 candidates for mglA: glucose ABC transporter, ATP-binding component (MglA)

Score Gene Description Similar to Id. Cov. Bits Other hit Other id. Other bits
hi B9Y55_RS11055 sugar ABC transporter ATP-binding protein Galactose/methyl galactoside import ATP-binding protein MglA aka B2149, component of Galactose/glucose (methyl galactoside) porter (characterized) 54% 98% 540.4 Inositol transport system ATP-binding protein 49% 471.1
med B9Y55_RS07445 sugar ABC transporter ATP-binding protein Monosaccharide-transporting ATPase, component of Glucose porter. Also bind xylose (Boucher and Noll 2011). Induced by glucose (Frock et al. 2012). Directly regulated by glucose-responsive regulator GluR (characterized) 42% 98% 379 deoxynucleoside transporter, ATPase component 44% 398.7
lo B9Y55_RS10130 ABC transporter ATP-binding protein Galactose/methyl galactoside import ATP-binding protein MglA aka B2149, component of Galactose/glucose (methyl galactoside) porter (characterized) 36% 94% 325.9 RnsB, component of The (deoxy)ribonucleoside permease; probably takes up all deoxy- and ribonucleosides (cytidine, uridine, adenosine and toxic analogues, fluorocytidine and fluorouridine tested), but not ribose or nucleobases 45% 436.8
lo B9Y55_RS04705 ABC transporter ATP-binding protein Monosaccharide-transporting ATPase, component of Glucose porter. Also bind xylose (Boucher and Noll 2011). Induced by glucose (Frock et al. 2012). Directly regulated by glucose-responsive regulator GluR (characterized) 36% 98% 320.5 Purine/cytidine ABC transporter ATP-binding protein, component of General nucleoside uptake porter, NupABC/BmpA (transports all common nucleosides as well as 5-fluorocytidine, inosine, deoxyuridine and xanthosine) (Martinussen et al., 2010) (Most similar to 3.A.1.2.12). NupA is 506aas with two ABC (C) domains. NupB has 8 predicted TMSs, NupC has 9 or 10 predicted TMSs in a 4 + 1 (or 2) + 4 arrangement 41% 383.6
lo B9Y55_RS01935 sugar ABC transporter ATP-binding protein glucose transporter, ATPase component (characterized) 37% 91% 160.2 Inositol transport system ATP-binding protein 41% 181.8

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

GapMind searches the predicted proteins for candidates by using ublast (a fast alternative to protein BLAST) to find similarities to characterized proteins or by using HMMer to find similarities to enzyme models (usually from TIGRFams). For alignments to characterized proteins (from ublast), scores of 44 bits correspond to an expectation value (E) of about 0.001.

Definition of step mglA

Or cluster all characterized mglA proteins

This GapMind analysis is from Sep 24 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:

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