Protein SMc04140 in Sinorhizobium meliloti 1021
Annotation: FitnessBrowser__Smeli:SMc04140
Length: 360 amino acids
Source: Smeli in FitnessBrowser
Candidate for 16 steps in catabolism of small carbon sources
| Pathway | Step | Score | Similar to | Id. | Cov. | Bits | Other hit | Other id. | Other bits |
|---|
| D-mannitol catabolism | mtlK | hi | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK (characterized) | 57% | 98% | 401.4 | ABC transporter for Lactose, ATPase component | 57% | 389.0 |
| D-sorbitol (glucitol) catabolism | mtlK | hi | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK (characterized) | 57% | 98% | 401.4 | ABC transporter for Lactose, ATPase component | 57% | 389.0 |
| lactose catabolism | lacK | med | ABC transporter for Lactose, ATPase component (characterized) | 57% | 99% | 389 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| D-maltose catabolism | aglK | med | ABC transporter for D-Maltose and D-Trehalose, ATPase component (characterized) | 56% | 99% | 386.3 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| D-maltose catabolism | thuK | med | ABC transporter for D-Maltose and D-Trehalose, ATPase component (characterized) | 56% | 99% | 386.3 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| sucrose catabolism | aglK | med | ABC transporter for D-Maltose and D-Trehalose, ATPase component (characterized) | 56% | 99% | 386.3 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| trehalose catabolism | aglK | med | ABC transporter for D-Maltose and D-Trehalose, ATPase component (characterized) | 56% | 99% | 386.3 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| D-maltose catabolism | malK | med | Maltose/maltodextrin import ATP-binding protein MalK; EC 7.5.2.1 (characterized) | 56% | 98% | 381.7 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| D-cellobiose catabolism | aglK' | med | Maltose/maltodextrin import ATP-binding protein; EC 3.6.3.19 (characterized, see rationale) | 53% | 95% | 337.4 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| D-glucose catabolism | aglK' | med | Maltose/maltodextrin import ATP-binding protein; EC 3.6.3.19 (characterized, see rationale) | 53% | 95% | 337.4 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| lactose catabolism | aglK' | med | Maltose/maltodextrin import ATP-binding protein; EC 3.6.3.19 (characterized, see rationale) | 53% | 95% | 337.4 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| D-maltose catabolism | aglK' | med | Maltose/maltodextrin import ATP-binding protein; EC 3.6.3.19 (characterized, see rationale) | 53% | 95% | 337.4 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| sucrose catabolism | aglK' | med | Maltose/maltodextrin import ATP-binding protein; EC 3.6.3.19 (characterized, see rationale) | 53% | 95% | 337.4 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| trehalose catabolism | aglK' | med | Maltose/maltodextrin import ATP-binding protein; EC 3.6.3.19 (characterized, see rationale) | 53% | 95% | 337.4 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| trehalose catabolism | malK | med | MsmK aka SMU.882, component of The raffinose/stachyose transporter, MsmEFGK (MalK (3.A.1.1.27) can probably substitute for MsmK; Webb et al., 2008). This system may also transport melibiose, isomaltotriose and sucrose as well as isomaltosaccharides (characterized) | 48% | 98% | 320.5 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
| D-maltose catabolism | malK_Bb | med | ABC-type maltose transport, ATP binding protein (characterized, see rationale) | 47% | 97% | 316.2 | MtlK, component of The polyol (mannitol, glucitol (sorbitol), arabitol (arabinitol; lyxitol)) uptake porter, MtlEFGK | 57% | 401.4 |
Sequence Analysis Tools
View SMc04140 at FitnessBrowser
Find papers: PaperBLAST
Find functional residues: SitesBLAST
Search for conserved domains
Find the best match in UniProt
Compare to protein structures
Predict transmenbrane helices: Phobius
Predict protein localization: PSORTb
Find homologs in fast.genomics
Fitness BLAST: loading...
Sequence
MATSVVLQKVEKRYGALDVIHGIDLTIDPGEFAVFVGPSGCGKSTLLRMIAGLEEISGGT
LMLDSDRMNEVAPARRGIAMVFQSYALYPHMSVYKNLAFGLETAGFKKAEIEPKVRRAAE
ILQIEKLLDRKPKALSGGQRQRVAIGRAIVREPRIFLFDEPLSNLDAELRVQMRVEISRL
HRDLGNTMIYVTHDQVEAMTMADKIVVLNSGRIEQVGAPLDLYNNPVNRFVAGFIGSPKM
NFLKARIADVTGSETAIEVCGGTIRLPRRLNGATQGQDVTFGIRPEHLSAREGGIELATV
NVEIVENLGGETMLYGITPDRQQLTVALEGQQKVERGSNLAVHFDPSRCHVFGADGRAMR
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:
- ublast finds a hit to a characterized protein at above 40% identity and 80% coverage, and bits >= other bits+10.
- (Hits to curated proteins without experimental data as to their function are never considered high confidence.)
- HMMer finds a hit with 80% coverage of the model, and either other identity < 40 or other coverage < 0.75.
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:
- ublast finds a hit at above 40% identity and 70% coverage (ignoring otherBits).
- ublast finds a hit at above 30% identity and 80% coverage, and bits >= other bits.
- HMMer finds a hit (regardless of coverage or other bits).
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:
- our ignorance of proteins' functions,
- omissions in the gene models,
- frame-shift errors in the genome sequence, or
- the organism lacks the pathway.
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