Protein Info for HP15_428 in Marinobacter adhaerens HP15
Annotation: glutamine synthetase, type I
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: 74% identical to GLN1B_AZOVI: Glutamine synthetase (glnA) from Azotobacter vinelandii
KEGG orthology group: K01915, glutamine synthetase [EC: 6.3.1.2] (inferred from 96% identity to maq:Maqu_0769)MetaCyc: 69% identical to glutamine synthetase (Escherichia coli K-12 substr. MG1655)
Glutamate--ammonia ligase. [EC: 6.3.1.2]
Predicted SEED Role
"Glutamine synthetase type I (EC 6.3.1.2)" in subsystem Ammonia assimilation or Glutamine, Glutamate, Aspartate and Asparagine Biosynthesis or Glutamine synthetases or Peptidoglycan Biosynthesis (EC 6.3.1.2)
MetaCyc Pathways
- L-arginine biosynthesis II (acetyl cycle) (10/10 steps found)
- L-glutamate and L-glutamine biosynthesis (6/7 steps found)
- ammonia assimilation cycle III (3/3 steps found)
- superpathway of ammonia assimilation (plants) (3/3 steps found)
- ammonia assimilation cycle I (2/2 steps found)
- ammonia assimilation cycle II (2/2 steps found)
- L-glutamine biosynthesis I (1/1 steps found)
- L-aspartate degradation II (aerobic) (1/3 steps found)
- L-aspartate degradation III (anaerobic) (1/3 steps found)
KEGG Metabolic Maps
Isozymes
Compare fitness of predicted isozymes for: 6.3.1.2
Use Curated BLAST to search for 6.3.1.2
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 E4PMR4 at UniProt or InterPro
Protein Sequence (467 amino acids)
>HP15_428 glutamine synthetase, type I (Marinobacter adhaerens HP15) MSKTVDLIKEHEVKWVDLRFTDSRGKEQHVTLPATEVDEDFFADGKMFDGSSIAGWKGIN ESDMILMPDDETSVLDPFTEETTVNITCNIVEPSTMQGYERDPRSVARRAEEYLKSTGIA DGALFGPEPEFFVFDSVKWNVDMQGAMYHIHSEEAAWVSGEDFDRNNIGHRPGVKGGYFP VPPVDSLHDLRGAMCAAMESMGLDIEVHHHEVGTAGQCEIGVGANTLTKKADEVQILKYC VHNVAHAYGKTATFMPKPVVGDNGSGMHVHMSLSKDGKNLFAGDSYAGLSEAALYYIGGV IKHAKAINAFTNSSTNSYKRLVPGFEAPVMLAYSARNRSASIRIPYVNSPKARRIEVRFP DPSANPYLAFAALMMAGLDGIQNKIHPGDAMDKDLYDLPKEEALSIPTVAETLSEALDCL EADHEFLTRGGVFTEDMIAGYVGLKRGEVEKLNMTTHPIEFDLYYSC