Protein SM_b20419 in Sinorhizobium meliloti 1021
Annotation: FitnessBrowser__Smeli:SM_b20419
Length: 349 amino acids
Source: Smeli in FitnessBrowser
Candidate for 11 steps in catabolism of small carbon sources
| Pathway | Step | Score | Similar to | Id. | Cov. | Bits | Other hit | Other id. | Other bits |
|---|
| xylitol catabolism | Dshi_0546 | med | ABC transporter for Xylitol, ATPase component (characterized) | 53% | 100% | 339.3 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| L-arabinose catabolism | xacK | med | Xylose/arabinose import ATP-binding protein XacK; EC 7.5.2.13 (characterized, see rationale) | 51% | 94% | 331.3 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| D-maltose catabolism | musK | med | ABC-type maltose transporter (EC 7.5.2.1) (characterized) | 48% | 100% | 316.6 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| D-cellobiose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| D-galactose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| D-glucose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| lactose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| D-maltose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| D-mannose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| sucrose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
| trehalose catabolism | glcV | med | monosaccharide-transporting ATPase (EC 3.6.3.17) (characterized) | 41% | 87% | 219.2 | AlgS, component of Alginate (MW 27,000 Da) (and Alginate oligosaccharides) uptake porter. Sphingomonas species A1 is a 'pit-forming' bacterium that directly incorporates alginate into its cytoplasm through a pit-dependent transport system, termed a 'superchannel' (Murata et al., 2008). The pit is a novel organ acquired through the fluidity and reconstitution of cell surface molecules, and through cooperation with the transport machinery in the cells. It confers upon bacterial cells a more efficient way to secure and assimilate macromolecules | 52% | 348.2 |
Sequence Analysis Tools
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Sequence
MATITLKDVHKTYHGDIAAIRGVSLAIADGEFIVLVGPSGCGKSTLLRMIAGLESITSGE
ISIGDRVVNGLEPSERDIAMVFQNYALYPHMTVRQNLSYGLKNRNTPKEEIERRIAKAAK
SLEIEPFLDRKPRQLSGGQRQRVAMGRAIVREPAAFLFDEPLSNLDAKLRVQMRVEIKRL
QRALGTTSVYVTHDQLEAMTLADRLVVLNGGRIEQVGTPIELYENPATAFVATFIGSPSM
NLLDLNTGNAAWSAPAALVGKPGLATIGIRPEDITLAGDTDGGERFRARVRVGAVELVGA
ESYVHGTLANGEPLVFRVAGRSRMMIDEEVEVAAVAGSLHWFDAAGRRL
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