Protein Info for SM_b20745 in Sinorhizobium meliloti 1021

Annotation: glutatmine synthetase II protein

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: 88% identical to GLNA2_BRADU: Glutamine synthetase (glnII) from Bradyrhizobium diazoefficiens (strain JCM 10833 / IAM 13628 / NBRC 14792 / USDA 110)

KEGG orthology group: K01915, glutamine synthetase [EC: 6.3.1.2] (inferred from 100% identity to sme:SM_b20745)

MetaCyc: 46% identical to glutamine synthetase (Arabidopsis thaliana col)
Glutamate--ammonia ligase. [EC: 6.3.1.2]

Predicted SEED Role

"Glutamine synthetase type II, eukaryotic (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)
ammonia assimilation cycle III (3/3 steps found)
ammonia assimilation cycle I (2/2 steps found)
L-glutamine biosynthesis I (1/1 steps found)
L-glutamate and L-glutamine biosynthesis (5/7 steps found)
superpathway of ammonia assimilation (plants) (2/3 steps found)
ammonia assimilation cycle II (1/2 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)

Search 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 Q92TR3 at UniProt or InterPro

Protein Sequence (344 amino acids)

>SM_b20745 glutatmine synthetase II protein (Sinorhizobium meliloti 1021)
MTKYKLEYIWLDGYTPVPNLRGKTQIKEFDAFPTLEQLPLWGFDGSSTQQAEGRSSDCVL
KPVAVYPDPVRTNGALVMCEVMMPDGKTPHPSNTRATVLDDESAWFGFEQEYFFYKNGRP
LGFPEQGYPAPQGPYYTGVGYKNVGDIARQIVEEHLDICLAAGINHEGINAEVAKGQWEF
QVFGKGSKKAADEVWLARYLLLRLTEKYGIDVEFHCKPLGDTDWNGSGMHANFSTAYLRE
VGGKDYFEALMAAFEKNLHDHINVYGPDNHLRLTGKHETAPWDKFSYGVADRGASIRVPH
SFVNNGYRGYLEDRRPNSQGDPYQIASVILKTISSVPTAVAKVA