Protein Info for Sama_2365 in Shewanella amazonensis SB2B
Name: ispG
Annotation: 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (RefSeq)
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: 100% identical to ISPG_SHEAM: 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (flavodoxin) (ispG) from Shewanella amazonensis (strain ATCC BAA-1098 / SB2B)
KEGG orthology group: K03526, (E)-4-hydroxy-3-methylbut-2-enyl-diphosphate synthase [EC: 1.17.7.1] (inferred from 100% identity to saz:Sama_2365)MetaCyc: 85% identical to (E)-4-hydroxy-3-methylbut-2-enyl-diphosphate synthase (flavodoxin) (Escherichia coli K-12 substr. MG1655)
RXN-15878 [EC: 1.17.7.3]
Predicted SEED Role
"1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate synthase (EC 1.17.7.1)" in subsystem Isoprenoid Biosynthesis (EC 1.17.7.1)
MetaCyc Pathways
- superpathway of geranylgeranyl diphosphate biosynthesis II (via MEP) (11/12 steps found)
- taxadiene biosynthesis (engineered) (11/13 steps found)
- methylerythritol phosphate pathway I (8/9 steps found)
- methylerythritol phosphate pathway II (8/9 steps found)
- isoprene biosynthesis I (8/10 steps found)
- superpathway of ergosterol biosynthesis II (10/26 steps found)
KEGG Metabolic Maps
- Biosynthesis of alkaloids derived from terpenoid and polyketide
- Biosynthesis of plant hormones
- Biosynthesis of terpenoids and steroids
- Terpenoid biosynthesis
Isozymes
No predicted isozymesUse Curated BLAST to search for 1.17.7.1 or 1.17.7.3
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 A1S863 at UniProt or InterPro
Protein Sequence (372 amino acids)
>Sama_2365 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (RefSeq) (Shewanella amazonensis SB2B) MFNENPIKRRPSTRIYVGNVPIGDGAPIAVQSMTNTRTTDVAATVAQIRALENVGADIVR VSVPTMDAAEAFRQIKQQVKVPLVADIHFDYRIALKVAEYGVDCLRINPGNIGNEERIRA VVDCARDKNIPIRIGVNGGSLEKDLMDKYKEPTPEALLESAMRHVDILDRLNFDQFKVSV KASDVFLAVESYRLLAKQIKQPLHLGITEAGGARAGAVKSAVGLGMLLAEGIGDTLRISL AADPVEEVKVGFDILKSLRIRSRGINFIACPSCSRQEFDVISTVNELERRLEDVTTAMDV SIIGCVVNGPGEALVSHLGLAGGHKKSGYYDDGIRQKERFDNDNLVDALEAKIRAKASLM ANRIPVQEGDAD