Protein Info for SO4265 in Shewanella oneidensis MR-1

Name: hsdM-2
Annotation: type I restriction-modification system, M subunit (NCBI ptt file)

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

1 50 100 150 200 250 300 350 400 450 500 537 PF12161: HsdM_N" amino acids 11 to 126 (116 residues), 35.3 bits, see alignment E=2.6e-12 PF02384: N6_Mtase" amino acids 136 to 467 (332 residues), 254.8 bits, see alignment E=1.9e-79 PF01170: UPF0020" amino acids 170 to 331 (162 residues), 23.4 bits, see alignment E=6.5e-09

Best Hits

Swiss-Prot: 58% identical to T1MK_ECOLI: Type I restriction enzyme EcoKI M protein (hsdM) from Escherichia coli (strain K12)

KEGG orthology group: K03427, type I restriction enzyme M protein [EC: 2.1.1.72] (inferred from 100% identity to son:SO_4265)

MetaCyc: 58% identical to type I restriction enzyme EcoKI methylase subunit (Escherichia coli K-12 substr. MG1655)
Type I site-specific deoxyribonuclease. [EC: 3.1.21.3]

Predicted SEED Role

"Type I restriction-modification system, DNA-methyltransferase subunit M (EC 2.1.1.72)" in subsystem Restriction-Modification System (EC 2.1.1.72)

Isozymes

Compare fitness of predicted isozymes for: 2.1.1.72, 3.1.21.3

Use Curated BLAST to search for 2.1.1.72 or 3.1.21.3

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 Q8E9K6 at UniProt or InterPro

Protein Sequence (537 amino acids)

>SO4265 type I restriction-modification system, M subunit (NCBI ptt file) (Shewanella oneidensis MR-1)
MSITSSNSDIVQKLWNLCDVLRDDGINYSDYVTELVLLLFIKMVHENTEAGLLNKHTLPT
GCRWTDLNDKDGLNLLDDYKRILLTLSTGKDSEGNTLHADPLILAIYADAQTRLREPRHL
KQLIKSLDSIDWFSAQKDGLGDLYEGLLEKNANETKSGAGQYFTPRALIDSMVRVINPQA
GEVIQDPAAGTAGFLIAAHEFIKNADNYDDLTLKEIEHLRNKAFIGVELVPSTRRLALMN
CLLHGMEGDDEGVVHLGNSLGQVGMSLPKADIILANPPFGTSKGGDASITRDDLTYPTSN
KQLAFLQHIYRNLKPGGRAAVVLPDNVLFEAGVGTDVRRDLMYKCNLHTILRLPTGIFYA
AGVKTNVLFFTKGSEADKLQEENCTTNTWVYDLRTNMPNFGKRTPFGEQHLTPFEAVYDP
SSHSREGGNPDLSARKEGEWSFNAEAVEIETTEVNQGIDERLAKSRWRVFSREFIRDTKG
DSLDISWLKDSNSVDAADLGTPEELAGEAMTELKGALADLEALMKSLGAELKTEVKG