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1RI1

Structure and mechanism of mRNA cap (guanine N-7) methyltransferase

Functional Information from GO Data
ChainGOidnamespacecontents
A0003723molecular_functionRNA binding
A0004482molecular_functionmRNA 5'-cap (guanine-N7-)-methyltransferase activity
A0005634cellular_componentnucleus
A0006370biological_process7-methylguanosine mRNA capping
A0008168molecular_functionmethyltransferase activity
A0032259biological_processmethylation
A0106005biological_processRNA 5'-cap (guanine-N7)-methylation
Functional Information from PDB Data
site_idAC1
Number of Residues16
DetailsBINDING SITE FOR RESIDUE SAH A 299
ChainResidue
ALYS54
APHE141
ASER142
ATYR145
AGTG300
AHOH303
AHOH308
AHOH315
AGLY72
AGLY74
AASP94
AILE95
AASP122
ASER123
ATYR124
AGLN140

site_idAC2
Number of Residues12
DetailsBINDING SITE FOR RESIDUE GTG A 300
ChainResidue
AASN50
AASN51
ALYS54
ALEU80
ALYS81
AARG106
ATYR284
ASAH299
AHOH314
AHOH318
AHOH336
AHOH347

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsBINDING:
ChainResidueDetails
AASN50

site_idSWS_FT_FI2
Number of Residues3
DetailsBINDING: BINDING => ECO:0000255|PROSITE-ProRule:PRU00895
ChainResidueDetails
ALYS54
AGLY72
AASP94

site_idSWS_FT_FI3
Number of Residues3
DetailsBINDING: BINDING => ECO:0000250|UniProtKB:O43148
ChainResidueDetails
AASP122
AGLN140
ATYR145

site_idSWS_FT_FI4
Number of Residues6
DetailsSITE: mRNA cap binding => ECO:0000255|PROSITE-ProRule:PRU00895
ChainResidueDetails
ALYS75
ALYS81
AARG106
AHIS144
AGLU225
ATYR284

Catalytic Information from CSA
site_idCSA1
Number of Residues3
DetailsAnnotated By Reference To The Literature 1qam
ChainResidueDetails
AGLN140
AGLY72
AASP94

225399

PDB entries from 2024-09-25

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