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Structure and Function of Cyclized Versions of the Proofreading Exonuclease Subunit of E. coli DNA Polymerase III

Functional Information from GO Data
ChainGOidnamespacecontents
A0003676molecular_functionnucleic acid binding
A0003677molecular_functionDNA binding
A0003887molecular_functionDNA-directed DNA polymerase activity
A0006260biological_processDNA replication
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MN A 3000
ChainResidue
AASP12
AU5P2000
AMN3001
AHOH5002
AHOH5012
AHOH5024

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MN A 3001
ChainResidue
AU5P2000
AMN3000
AHOH5100
AASP12
AGLU14
AASP167

site_idAC3
Number of Residues19
DetailsBINDING SITE FOR RESIDUE U5P A 2000
ChainResidue
AASP12
ATHR13
AGLU14
ATHR15
AGLY17
AMET18
AGLU61
AALA62
AVAL65
AHIS66
APHE102
AHIS162
AASP167
AU5P2100
AMN3000
AMN3001
AHOH5100
AHOH5102
AHOH5175

site_idAC4
Number of Residues12
DetailsBINDING SITE FOR RESIDUE U5P A 2100
ChainResidue
AHIS98
AASN99
ASER144
ALEU145
AARG159
AHIS162
AU5P2000
AHOH5012
AHOH5023
AHOH5030
AHOH5175
AHOH5191

site_idAC5
Number of Residues1
DetailsBINDING SITE FOR RESIDUE EDO A 4000
ChainResidue
APHE124

site_idAC6
Number of Residues5
DetailsBINDING SITE FOR RESIDUE EDO A 5000
ChainResidue
AILE104
AASN122
AVAL127
AHOH5146
AHOH5153

site_idAC7
Number of Residues8
DetailsBINDING SITE FOR RESIDUE PEG A 3824
ChainResidue
AILE21
AGLY22
AHIS66
AGLY67
APHE72
ALEU161
AHOH5097
AHOH5198

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues1
DetailsACT_SITE: Proton acceptor
ChainResidueDetails
AHIS162

site_idSWS_FT_FI2
Number of Residues5
DetailsBINDING:
ChainResidueDetails
AASP12
AGLU14
AGLU61
AHIS66
AASP167

Catalytic Information from CSA
site_idMCSA1
Number of Residues5
DetailsM-CSA 754
ChainResidueDetails
AASP12metal ligand
AGLU14hydrogen bond acceptor, metal ligand, proton acceptor, proton donor
AGLU61electrostatic stabiliser, increase basicity, polar interaction
AHIS162proton acceptor, proton donor
AASP167metal ligand

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PDB entries from 2024-06-26

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