Protein Info for HSERO_RS21425 in Herbaspirillum seropedicae SmR1

Annotation: 5,10-methylenetetrahydrofolate reductase

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

• PF02219: MTHFR
  • amino acids 5 to 280 (276 residues), 292.4 bits, E=1.8e-91
• TIGR00676: methylenetetrahydrofolate reductase [NAD(P)H]
  • amino acids 8 to 280 (273 residues), 327.2 bits, E=4e-102

Best Hits

Swiss-Prot: 42% identical to METF_SALTY: 5,10-methylenetetrahydrofolate reductase (metF) from Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)

KEGG orthology group: K00297, methylenetetrahydrofolate reductase (NADPH) [EC: 1.5.1.20] (inferred from 100% identity to hse:Hsero_4287)

MetaCyc: 42% identical to 5,10-methylenetetrahydrofolate reductase (Escherichia coli K-12 substr. MG1655)
RXN-22438 [EC: 1.5.1.54]

Predicted SEED Role

"5,10-methylenetetrahydrofolate reductase (EC 1.5.1.20)" in subsystem Methionine Biosynthesis or One-carbon metabolism by tetrahydropterines or Serine-glyoxylate cycle (EC 1.5.1.20)

MetaCyc Pathways

• folate transformations III (E. coli) (9/9 steps found)
• folate transformations II (plants) (10/11 steps found)
• folate transformations I (9/13 steps found)
• reductive acetyl coenzyme A pathway I (homoacetogenic bacteria) (3/10 steps found)
• Methanobacterium thermoautotrophicum biosynthetic metabolism (21/56 steps found)

KEGG Metabolic Maps

• Methane metabolism
• One carbon pool by folate

Isozymes

No predicted isozymes

Use Curated BLAST to search for 1.5.1.20 or 1.5.1.54

Sequence Analysis Tools

See D8IUM4 at UniProt or InterPro

Protein Sequence (282 amino acids)

>HSERO_RS21425 5,10-methylenetetrahydrofolate reductase (Herbaspirillum seropedicae SmR1)
MSTSTHNFSIEFFPPKTAEGAEKLRATRARLAALQPKYFSVTFGAGGSTQQGTRDTVLEI
VSEGHEAAPHLSCIGSSRASLRAILEDYRANGIKRLVALRGDLPSGYGAMDQASSEFRYA
NELVEFVRAETGDWFHIEVAAYPEMHPQARSPQDDAQNFARKVKAGANSAITQYFYNADA
YFRFVDEAARLGATVPVIAGIMPITNYSQLMRFSDMCGTEIPRWIRLKLASYGDDTESIR
AFGLDVVTQLCERLLAGGAPGLHFYSLNQAGPTQAIWQQLVK