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3SM4

Crystal Structure of the K131A Mutant of Lambda Exonuclease in Complex with a 5'-Phosphorylated 14-mer/12-mer Duplex and Magnesium

Functional Information from GO Data
ChainGOidnamespacecontents
A0004527molecular_functionexonuclease activity
A0006259biological_processDNA metabolic process
A0046872molecular_functionmetal ion binding
A0051908molecular_functiondouble-stranded DNA 5'-3' DNA exonuclease activity
B0004527molecular_functionexonuclease activity
B0006259biological_processDNA metabolic process
B0046872molecular_functionmetal ion binding
B0051908molecular_functiondouble-stranded DNA 5'-3' DNA exonuclease activity
C0004527molecular_functionexonuclease activity
C0006259biological_processDNA metabolic process
C0046872molecular_functionmetal ion binding
C0051908molecular_functiondouble-stranded DNA 5'-3' DNA exonuclease activity
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE PO4 A 227
ChainResidue
AVAL17
ATRP24
ALEU27
AARG28
APRO104
AILE105

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CL A 228
ChainResidue
ACL229
AHOH299
AALA34
ASER35
ASER117

site_idAC3
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CL A 229
ChainResidue
ATHR33
ACYS116
ASER117
ACL228
AHOH394

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 227
ChainResidue
BASP119
BGLU129
BLEU130
BHOH550
EDG2
EHOH543

site_idAC5
Number of Residues8
DetailsBINDING SITE FOR RESIDUE PO4 C 227
ChainResidue
CARG28
CTHR33
CALA34
CSER35
CALA115
CCYS116
CSER117
CHOH527

site_idAC6
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG E 15
ChainResidue
BASP119
BHOH277
BHOH305
BHOH310
EDA1
EDG2

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues6
DetailsBINDING:
ChainResidueDetails
AASP119
AGLU129
BASP119
BGLU129
CASP119
CGLU129

Catalytic Information from CSA
site_idMCSA1
Number of Residues6
DetailsM-CSA 836
ChainResidueDetails
AGLU93metal ligand
AGLU102electrostatic stabiliser
AASP109metal ligand
AGLU129increase nucleophilicity, metal ligand, proton acceptor, proton donor
ALEU130metal ligand
AALA131electrostatic stabiliser, proton acceptor, proton donor, proton relay

site_idMCSA2
Number of Residues6
DetailsM-CSA 836
ChainResidueDetails
BGLU93metal ligand
BGLU102electrostatic stabiliser
BASP109metal ligand
BGLU129increase nucleophilicity, metal ligand, proton acceptor, proton donor
BLEU130metal ligand
BALA131electrostatic stabiliser, proton acceptor, proton donor, proton relay

site_idMCSA3
Number of Residues6
DetailsM-CSA 836
ChainResidueDetails
CGLU93metal ligand
CGLU102electrostatic stabiliser
CASP109metal ligand
CGLU129increase nucleophilicity, metal ligand, proton acceptor, proton donor
CLEU130metal ligand
CALA131electrostatic stabiliser, proton acceptor, proton donor, proton relay

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PDB entries from 2024-07-17

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