Protein Info for Psyr_2402 in Pseudomonas syringae pv. syringae B728a
Annotation: 3,4-dihydroxy-2-butanone 4-phosphate synthase / GTP cyclohydrolase II
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
Swiss-Prot: 95% identical to RIBB_PSESM: 3,4-dihydroxy-2-butanone 4-phosphate synthase (ribB) from Pseudomonas syringae pv. tomato (strain ATCC BAA-871 / DC3000)
KEGG orthology group: K14652, 3,4-dihydroxy 2-butanone 4-phosphate synthase / GTP cyclohydrolase II [EC: 3.5.4.25 4.1.99.12] (inferred from 100% identity to psb:Psyr_2402)Predicted SEED Role
"3,4-dihydroxy-2-butanone 4-phosphate synthase (EC 4.1.99.12) / GTP cyclohydrolase II (EC 3.5.4.25)" in subsystem Molybdenum cofactor biosynthesis or Riboflavin, FMN and FAD metabolism (EC 3.5.4.25, EC 4.1.99.12)
MetaCyc Pathways
- flavin biosynthesis I (bacteria and plants) (8/9 steps found)
- flavin biosynthesis III (fungi) (7/9 steps found)
- 6-hydroxymethyl-dihydropterin diphosphate biosynthesis III (Chlamydia) (3/5 steps found)
- toxoflavin biosynthesis (3/7 steps found)
- flavin biosynthesis II (archaea) (5/10 steps found)
KEGG Metabolic Maps
Isozymes
Compare fitness of predicted isozymes for: 3.5.4.25, 4.1.99.12
Use Curated BLAST to search for 3.5.4.25 or 4.1.99.12
Sequence Analysis Tools
PaperBLAST (search for papers about homologs of this protein)
Search CDD (the Conserved Domains Database, which includes COG and superfam)
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 Q4ZTT1 at UniProt or InterPro
Protein Sequence (369 amino acids)
>Psyr_2402 3,4-dihydroxy-2-butanone 4-phosphate synthase / GTP cyclohydrolase II (Pseudomonas syringae pv. syringae B728a) MAFDRIEDIIEDYRQGKMVLLVDDEDRENEGDLLLAADCCSPQAISFMAREARGLICLTL TDEHCQRLGLEQMVPSNGSVFATAFTVSIEATTGVTTGISAADRARTVQAAVNPHAVPED LVQPGHIFPLRARDGGVLTRVGHTEAGCDLARLAGFTPASVIVEVMNDDGSMARRPDLEV FAKKHGIRIGTIADLIHYRLSTEHTIVRIGERELPTVHGTFRLFSYEDRIEGGVHMAMVM GDIRRDAATLVRVHVVDPLRDLVGAEYNGPANWTLWAALQRVAQEGHGVVVVLANHESSQ ALLERIPQLTQPPRQYTRSQSRIYSEVGTGAQILQDLGVGKLRHLGPPLKYAGLTGYDLE VIESIPFPG