Protein Info for EX31_RS21350 in Rahnella sp. WP5

Annotation: methionine adenosyltransferase

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

• PF00438: S-AdoMet_synt_N
  • amino acids 4 to 101 (98 residues), 149.8 bits, E=4.3e-48
• TIGR01034: methionine adenosyltransferase
  • amino acids 5 to 380 (376 residues), 661.8 bits, E=1.5e-203
• PF02772: S-AdoMet_synt_M
  • amino acids 114 to 231 (118 residues), 167.2 bits, E=2.4e-53
• PF02773: S-AdoMet_synt_C
  • amino acids 233 to 370 (138 residues), 235.6 bits, E=2.4e-74

Best Hits

Swiss-Prot: 95% identical to METK_SERP5: S-adenosylmethionine synthase (metK) from Serratia proteamaculans (strain 568)

KEGG orthology group: K00789, S-adenosylmethionine synthetase [EC: 2.5.1.6] (inferred from 99% identity to rah:Rahaq_3531)

MetaCyc: 94% identical to methionine adenosyltransferase (Escherichia coli K-12 substr. MG1655)
Methionine adenosyltransferase. [EC: 2.5.1.6]

Predicted SEED Role

"S-adenosylmethionine synthetase (EC 2.5.1.6)" in subsystem Methionine Biosynthesis or Methionine Degradation or Quorum Sensing: Autoinducer-2 Synthesis (EC 2.5.1.6)

MetaCyc Pathways

• aspartate superpathway (24/25 steps found)
• superpathway of S-adenosyl-L-methionine biosynthesis (9/9 steps found)
• L-methionine salvage cycle I (bacteria and plants) (11/12 steps found)
• L-methionine salvage cycle III (10/11 steps found)
• S-adenosyl-L-methionine salvage I (4/4 steps found)
• L-methionine salvage cycle II (plants) (9/11 steps found)
• S-adenosyl-L-methionine biosynthesis (1/1 steps found)
• S-adenosyl-L-methionine salvage II (2/3 steps found)
• L-cysteine biosynthesis VI (reverse transsulfuration) (4/7 steps found)
• L-methionine degradation I (to L-homocysteine) (1/3 steps found)
• ethene biosynthesis I (plants) (1/3 steps found)
• 2'-deoxymugineic acid phytosiderophore biosynthesis (1/4 steps found)
• superpathway of L-cysteine biosynthesis (mammalian) (1/5 steps found)
• superpathway of L-methionine salvage and degradation (6/16 steps found)

KEGG Metabolic Maps

• Biosynthesis of plant hormones
• Methionine metabolism
• Selenoamino acid metabolism

Isozymes

No predicted isozymes

Use Curated BLAST to search for 2.5.1.6

Protein Sequence (383 amino acids)

>EX31_RS21350 methionine adenosyltransferase (Rahnella sp. WP5)
MAKHLFTSESVSEGHPDKIADQISDAVLDAILEQDPKARVACETYVKTGMVLVGGEITTS
AWVDVEEITRQTVREIGYIHSDMGFDANSCAVLSAIGKQSPDINQGVDRTDPLEQGAGDQ
GLMFGYATNETSVLMPAPITYAHRLVQRQAEVRKSGTLPWLRPDAKSQVTFQYDEGKIVG
IDAVVLSTQHSEDISLKDLQEAVMEEIIKPVLPAEWLNAGTKYHINPTGRFVIGGPMGDC
GLTGRKIIVDTYGGMARHGGGAFSGKDPSKVDRSAAYAARYVAKNIVAAGLADRCEIQVS
YAIGVAEPTSIMVETFGTGKVSNEQLTLLVREFFDLRPYGLIQMMDLLHPIYKETAAYGH
FGREHFPWEKTDRAAQLREAAGL