Protein Info for Synpcc7942_2439 in Synechococcus elongatus PCC 7942
Name: crtR
Annotation: beta-carotene hydroxylase
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
Best Hits
KEGG orthology group: K02294, beta-carotene hydroxylase [EC: 1.14.13.-] (inferred from 100% identity to syc:syc1667_c)MetaCyc: 67% identical to beta-carotene hydroxylase (Synechocystis sp. PCC 6803)
RXN-8025 [EC: 1.14.15.24]; 1.14.15.24 [EC: 1.14.15.24]; 1.14.13.- [EC: 1.14.15.24]
Predicted SEED Role
"Beta-carotene hydroxylase" in subsystem Carotenoids
MetaCyc Pathways
- zeaxanthin biosynthesis (2/2 steps found)
- echinenone and zeaxanthin biosynthesis (Synechocystis) (3/4 steps found)
- astaxanthin biosynthesis (bacteria, fungi, algae) (2/10 steps found)
- superpathway of carotenoid biosynthesis in plants (8/22 steps found)
KEGG Metabolic Maps
- 1,4-Dichlorobenzene degradation
- 1- and 2-Methylnaphthalene degradation
- Alkaloid biosynthesis I
- Benzoate degradation via CoA ligation
- Biosynthesis of alkaloids derived from shikimate pathway
- Biosynthesis of phenylpropanoids
- Biosynthesis of plant hormones
- Biosynthesis of terpenoids and steroids
- Bisphenol A degradation
- Brassinosteroid biosynthesis
- Carotenoid biosynthesis - General
- Cyanoamino acid metabolism
- Flavonoid biosynthesis
- Histidine metabolism
- Isoflavonoid biosynthesis
- Limonene and pinene degradation
- Methane metabolism
- Naphthalene and anthracene degradation
- Phenylalanine metabolism
- Phenylpropanoid biosynthesis
- Styrene degradation
- Toluene and xylene degradation
- Tryptophan metabolism
- Ubiquinone and menaquinone biosynthesis
- gamma-Hexachlorocyclohexane degradation
Isozymes
Compare fitness of predicted isozymes for: 1.14.13.-
Use Curated BLAST to search for 1.14.13.- or 1.14.15.24
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
See Q31KF0 at UniProt or InterPro
Protein Sequence (331 amino acids)
>Synpcc7942_2439 beta-carotene hydroxylase (Synechococcus elongatus PCC 7942) MSEAQTPLTVPKKFLGAPGGFNPTVALFLAGYTCAALSVLGYWCWSWPHWLSFLLSVTAL HLVGTVIHDASHNVAHASRILNAILGHGSALLLGFTFPVFTRVHLQHHAHVNDPKNDPDH IVSTFGPLWLIAPRFFYHEIYFFQRRLWKKFELLEWFLSRAVVIGIFACGVKFGFLGFLM NYWLAPALVVGIALGLFFDYLPHRPFQERNRWRNARVYPGQVMNILIMGQNYHLIHHLWP SIPWYLYRPAYHATKPLLDLRQSPQTLGILSSKKDFWNFIYDVFIGIRIHQSHEAEPQSS VVPETKSSESAVLAKAPMSATEDSREPALTK