Protein Info for CSW01_18270 in Vibrio cholerae E7946 ATCC 55056

Annotation: L-ectoine synthase

These analyses and tools can help you predict a protein's function, but be skeptical. For enzymes, over 10% of annotations from KEGG or SEED are probably incorrect. For other types of proteins, the error rates may be much higher. MetaCyc and Swiss-Prot have low error rates, but the best hits in these databases are often quite distant, so this protein's function may not be the same. TIGRFam has low error rates. Finally, many experimentally-characterized proteins are not in any of these databases. To find relevant papers, use PaperBLAST.

Protein Families and Features

1 50 100 138 PF06339: Ectoine_synth" amino acids 1 to 126 (126 residues), 201.7 bits, see alignment E=6.6e-64 PF02311: AraC_binding" amino acids 40 to 98 (59 residues), 22.2 bits, see alignment E=1.6e-08 PF07883: Cupin_2" amino acids 47 to 102 (56 residues), 35.3 bits, see alignment E=1.1e-12

Best Hits

Swiss-Prot: 100% identical to ECTC_VIBCH: L-ectoine synthase (ectC) from Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)

KEGG orthology group: K06720, L-ectoine synthase [EC: 4.2.1.108] (inferred from 100% identity to vco:VC0395_0411)

MetaCyc: 56% identical to ectoine synthase monomer (Halomonas elongata DSM 2581)
Ectoine synthase. [EC: 4.2.1.108]

Predicted SEED Role

"L-ectoine synthase (EC 4.2.1.-)" in subsystem Ectoine biosynthesis and regulation (EC 4.2.1.-)

MetaCyc Pathways

KEGG Metabolic Maps

Isozymes

Compare fitness of predicted isozymes for: 4.2.1.-

Use Curated BLAST to search for 4.2.1.- or 4.2.1.108

Sequence Analysis Tools

PaperBLAST (search for papers about homologs of this protein)

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

Compare to protein structures

Predict protein localization: PSORTb (Gram-negative bacteria)

Predict transmembrane helices and signal peptides: Phobius

Check the current SEED with FIGfam search

Find homologs in fast.genomics or the ENIGMA genome browser

Find the best match in UniProt

Protein Sequence (138 amino acids)

>CSW01_18270 L-ectoine synthase (Vibrio cholerae E7946 ATCC 55056)
MIVRTLEECRQSERRVVAENWESVRMLLKDDHMGFSFHITTIYANTQTHIHYRNHLESVY
CMSGEGEIEVVGGKTYPIQPGTLYILDQHDEHYLRAFSSEMVMACVFNPPLTGHEIHDAE
GVYPLDKSELISQCHKEK