Protein Info for MMJJ_RS02215 in Methanococcus maripaludis JJ

Annotation: phosphoribosylaminoimidazolesuccinocarboxamide synthase

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: 71% identical to PUR7_METJA: Phosphoribosylaminoimidazole-succinocarboxamide synthase (purC) from Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)

KEGG orthology group: K01923, phosphoribosylaminoimidazole-succinocarboxamide synthase [EC: 6.3.2.6] (inferred from 100% identity to mmp:MMP0540)

Predicted SEED Role

"Phosphoribosylaminoimidazole-succinocarboxamide synthase (EC 6.3.2.6)" in subsystem De Novo Purine Biosynthesis (EC 6.3.2.6)

MetaCyc Pathways

superpathway of histidine, purine, and pyrimidine biosynthesis (35/46 steps found)
superpathway of purine nucleotides de novo biosynthesis I (17/21 steps found)
inosine-5'-phosphate biosynthesis III (5/6 steps found)
inosine-5'-phosphate biosynthesis II (4/5 steps found)
inosine-5'-phosphate biosynthesis I (4/6 steps found)
superpathway of purine nucleotides de novo biosynthesis II (17/26 steps found)

KEGG Metabolic Maps

Purine metabolism

Isozymes

No predicted isozymes

Use Curated BLAST to search for 6.3.2.6

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 (archaea)

Predict transmembrane helices and signal peptides: Phobius

Check the current SEED with FIGfam search

Find homologs in fast.genomics or the ENIGMA genome browser

Find the best match in UniProt

Protein Sequence (246 amino acids)

>MMJJ_RS02215 phosphoribosylaminoimidazolesuccinocarboxamide synthase (Methanococcus maripaludis JJ)
MSKYDISKILANEPIYAGKAKSIYKIEENEKEVLVEFRDDITAGNGAKHDVKSGKGYLNT
LISTELFNVLEKNNVPTHLIEYIEPNIMIAKNVKIIPLEVIVRNIAAGSLCKKYPFEQGQ
VLKTAVTQYDYKNDDYGDPMLNNEIAIELGLATEEELVEIKKLALKVNDVLKGFFDEKGI
MLVDFKIEVGKTADGQIVVADEISPDTMRLWDKETKDVLDKDVFRKDLGDVLEKYKIVAE
RIGCLK