Protein Info for PFLU_RS26890 in Pseudomonas fluorescens SBW25
Annotation: bifunctional 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: 84% identical to RIBB_PSEAE: 3,4-dihydroxy-2-butanone 4-phosphate synthase (ribB) from Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1)
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 pfs:PFLU5471)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 C3K2S0 at UniProt or InterPro
Protein Sequence (363 amino acids)
>PFLU_RS26890 bifunctional 3,4-dihydroxy-2-butanone-4-phosphate synthase/GTP cyclohydrolase II (Pseudomonas fluorescens SBW25) MALNSIEELVEDIRQGKMVILMDDEDRENEGDIIMAAEACQAEHINFMAKHARGLICMPM SRERCELLKLPLMAPRNGSGFGTKFTVSIEATTGVTTGISAADRARTVQAAAAKDAKAED IVSPGHIFPLMAQPGGTLARAGHTEAACDLARMAGFEPSGVICEVMNDDGTMARRAELEA FAAEHNIKVGTIADLIHYRMIHERTVQRIAEQPLDSELGQFNLVTYRDSVEGDVHMALTL GTICAEEPTLVRVHNMDPLRDLLMVKQPGRWSLRAAMSAVSEAGSGVVLLLGNPVDGDVL LAHIRETADHAPVKKPTTYSIVGAGSQILRDLGVRKMRLMSAPMKFNAISGFDLEVVEYV PSE