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2OKC

Crystal structure of Type I restriction enzyme StySJI M protein (NP_813429.1) from Bacteroides thetaiotaomicron VPI-5482 at 2.20 A resolution

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0003677molecular_functionDNA binding
A0008168molecular_functionmethyltransferase activity
A0008170molecular_functionN-methyltransferase activity
A0009007molecular_functionsite-specific DNA-methyltransferase (adenine-specific) activity
A0009307biological_processDNA restriction-modification system
A0016740molecular_functiontransferase activity
A0032259biological_processmethylation
B0003676molecular_functionnucleic acid binding
B0003677molecular_functionDNA binding
B0008168molecular_functionmethyltransferase activity
B0008170molecular_functionN-methyltransferase activity
B0009007molecular_functionsite-specific DNA-methyltransferase (adenine-specific) activity
B0009307biological_processDNA restriction-modification system
B0016740molecular_functiontransferase activity
B0032259biological_processmethylation
Functional Information from PDB Data
site_idAC1
Number of Residues23
DetailsBINDING SITE FOR RESIDUE SAM A 500
ChainResidue
AGLN151
ATHR181
AGLY183
APHE184
AASP214
AASN215
ATHR216
AGLU242
AASP243
ASER244
AASN259
ATYR152
APRO261
APHE288
AHOH536
AHOH576
APHE153
ATHR154
AARG156
APRO177
AALA178
ACYS179
AGLY180

site_idAC2
Number of Residues25
DetailsBINDING SITE FOR RESIDUE SAM B 500
ChainResidue
BGLN151
BTYR152
BPHE153
BTHR154
BARG156
BPRO177
BALA178
BCYS179
BGLY180
BTHR181
BGLY183
BPHE184
BASP214
BASN215
BTHR216
BGLU242
BASP243
BSER244
BASN259
BPRO261
BPHE288
BHOH525
BHOH537
BHOH562
BHOH628

site_idAC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE GOL A 501
ChainResidue
AHIS331
ATYR392
AARG395
AHOH627

site_idAC4
Number of Residues5
DetailsBINDING SITE FOR RESIDUE IPA A 502
ChainResidue
ALEU138
AASN141
AGLY142
AALA149
APHE153

site_idAC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE IPA B 501
ChainResidue
BASP164
BARG382
BASP386

Functional Information from PROSITE/UniProt
site_idPS00092
Number of Residues7
DetailsN6_MTASE N-6 Adenine-specific DNA methylases signature. ILANPPF
ChainResidueDetails
AILE256-PHE262

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues8
DetailsBINDING: BINDING => ECO:0000269|Ref.3, ECO:0007744|PDB:2OKC
ChainResidueDetails
AGLN151
ATHR181
AASP214
AASP243
BGLN151
BTHR181
BASP214
BASP243

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PDB entries from 2025-06-11

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