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1LTQ

CRYSTAL STRUCTURE OF T4 POLYNUCLEOTIDE KINASE

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0005524molecular_functionATP binding
A0006281biological_processDNA repair
A0006974biological_processDNA damage response
A0016301molecular_functionkinase activity
A0016740molecular_functiontransferase activity
A0016787molecular_functionhydrolase activity
A0046404molecular_functionATP-dependent polydeoxyribonucleotide 5'-hydroxyl-kinase activity
A0047846molecular_functiondeoxynucleotide 3'-phosphatase activity
A0051734molecular_functionATP-dependent polynucleotide 5'-hydroxyl-kinase activity
Functional Information from PDB Data
site_idAC1
Number of Residues9
DetailsBINDING SITE FOR RESIDUE ADP A 900
ChainResidue
APRO11
AGLY12
ASER13
AGLY14
ALYS15
ASER16
ATHR17
AARG122
AARG126

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE DMS A 800
ChainResidue
AGLU108
AHIS109
AARG226
AHOH627

Catalytic Information from CSA
site_idCSA1
Number of Residues4
Detailsa catalytic site defined by CSA, PubMed 12110598, 12220496
ChainResidueDetails
ALYS15
AARG126
AASP35
AASP165

site_idMCSA1
Number of Residues4
DetailsM-CSA 625
ChainResidueDetails
AALA19electrostatic stabiliser
AGLN39proton shuttle (general acid/base)
ASER138electrostatic stabiliser
AASP185covalent catalysis

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PDB entries from 2025-07-16

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