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1HMY

CRYSTAL STRUCTURE OF THE HHAI DNA METHYLTRANSFERASE COMPLEXED WITH S-ADENOSYL-L-METHIONINE

Functional Information from GO Data
ChainGOidnamespacecontents
A0003677molecular_functionDNA binding
A0003886molecular_functionDNA (cytosine-5-)-methyltransferase activity
A0008168molecular_functionmethyltransferase activity
A0009307biological_processDNA restriction-modification system
A0016740molecular_functiontransferase activity
A0032259biological_processmethylation
Functional Information from PDB Data
site_idAC1
Number of Residues10
DetailsBINDING SITE FOR RESIDUE SAM A 328
ChainResidue
APHE18
ALEU100
AGLU40
ATRP41
AASP60
AILE61
ATHR62
AGLY78
APHE79
APRO80

Functional Information from PROSITE/UniProt
site_idPS00094
Number of Residues13
DetailsC5_MTASE_1 C-5 cytosine-specific DNA methylases active site. DiLcaGfPCqAFS
ChainResidueDetails
AASP73-SER85

site_idPS00095
Number of Residues19
DetailsC5_MTASE_2 C-5 cytosine-specific DNA methylases C-terminal signature. KqfGNSVvInVlqyIaynI
ChainResidueDetails
ALYS300-ILE318

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsACT_SITE: ACT_SITE => ECO:0000305|PubMed:7899082
ChainResidueDetails
ACYS81

Catalytic Information from CSA
site_idMCSA1
Number of Residues4
DetailsM-CSA 293
ChainResidueDetails
ACYS81covalently attached, hydrogen bond acceptor, nucleofuge, nucleophile, polar interaction, proton acceptor, proton donor
AGLU119attractive charge-charge interaction, electrostatic stabiliser, hydrogen bond acceptor, increase electrophilicity
AARG163attractive charge-charge interaction, electrostatic stabiliser, hydrogen bond donor, increase electrophilicity
AARG165attractive charge-charge interaction, electrostatic stabiliser, hydrogen bond donor, increase electrophilicity

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PDB entries from 2024-04-24

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