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2PYL

Phi29 DNA polymerase complexed with primer-template DNA and incoming nucleotide substrates (ternary complex)

Functional Information from GO Data
ChainGOidnamespacecontents
A0000166molecular_functionnucleotide binding
A0001882molecular_functionnucleoside binding
A0003676molecular_functionnucleic acid binding
A0003677molecular_functionDNA binding
A0003887molecular_functionDNA-directed DNA polymerase activity
A0004518molecular_functionnuclease activity
A0004527molecular_functionexonuclease activity
A0006260biological_processDNA replication
A0016740molecular_functiontransferase activity
A0016779molecular_functionnucleotidyltransferase activity
A0016787molecular_functionhydrolase activity
A0034061molecular_functionDNA polymerase activity
A0039693biological_processviral DNA genome replication
A0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues8
DetailsBINDING SITE FOR RESIDUE MG A 3202
ChainResidue
AASP249
AVAL250
AASP458
AMG3203
ATTP3204
AHOH3274
AHOH3523
AHOH3525

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE MG A 3203
ChainResidue
AASP458
AMG3202
ATTP3204
AHOH3525
AASP249

site_idAC3
Number of Residues21
DetailsBINDING SITE FOR RESIDUE TTP A 3204
ChainResidue
ALEU253
ATYR254
ALYS371
ALYS383
AASN387
AASP458
AMG3202
AMG3203
AHOH3233
AHOH3235
AHOH3265
AHOH3274
AHOH3300
AHOH3501
AHOH3523
AHOH3524
AHOH3525
AHOH3527
X2DA11
YDA6
YDT7

site_idAC4
Number of Residues3
DetailsBINDING SITE FOR RESIDUE EDO A 1001
ChainResidue
AILE158
AGLU291
AEDO1004

site_idAC5
Number of Residues5
DetailsBINDING SITE FOR RESIDUE EDO A 1002
ChainResidue
AGLN257
ASER260
ATHR440
AGLY481
AHOH3504

site_idAC6
Number of Residues3
DetailsBINDING SITE FOR RESIDUE EDO A 1003
ChainResidue
ALYS80
APRO87
AASN88

site_idAC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE EDO A 1004
ChainResidue
AILE40
AASN42
AILE158
AASN344
AEDO1001

site_idAC8
Number of Residues4
DetailsBINDING SITE FOR RESIDUE EDO A 1005
ChainResidue
ATYR59
AASP186
AARG187
AMET188

site_idAC9
Number of Residues5
DetailsBINDING SITE FOR RESIDUE EDO A 1006
ChainResidue
ALYS124
ATHR189
AGLY191
AHOH3318
YDA6

Functional Information from PROSITE/UniProt
site_idPS00116
Number of Residues9
DetailsDNA_POLYMERASE_B DNA polymerase family B signature. YCDTDSIHL
ChainResidueDetails
ATYR454-LEU462

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues37
DetailsRegion: {"description":"Involved in DNA-binding, coordination between DNA synthesis and degradation and TP interaction","evidences":[{"source":"PubMed","id":"15777661","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8670845","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"9931249","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues332
DetailsRegion: {"description":"Initiation, polymerization and pyrophosphorolytic activities","evidences":[{"source":"PubMed","id":"8621470","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues22
DetailsRegion: {"description":"TPR2","evidences":[{"source":"PubMed","id":"15845765","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues12
DetailsRegion: {"description":"Involved in DNA-binding and TP interaction","evidences":[{"source":"PubMed","id":"14729920","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues4
DetailsMotif: {"description":"YCDTD","evidences":[{"source":"PubMed","id":"1850426","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"PDB","id":"1XI1","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"8226957","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"2PYJ","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"19883660","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"2PYJ","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PDB","id":"2PYL","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"9784372","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"PDB","id":"2PYJ","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues3
DetailsSite: {"description":"Essential for 3'-5' exonucleolysis","evidences":[{"source":"PubMed","id":"2790959","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"8344956","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues2
DetailsSite: {"description":"Involved in proofreading function by stabilization of the frayed primer-terminus at the 3'-5' exonuclease active site","evidences":[{"source":"PubMed","id":"8605889","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI14
Number of Residues3
DetailsSite: {"description":"Interaction with the primer terminal protein","evidences":[{"source":"PubMed","id":"11884636","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI15
Number of Residues3
DetailsSite: {"description":"Binds ssDNA; Essential for 3'-5' exonucleolysis","evidences":[{"source":"PubMed","id":"9786901","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI16
Number of Residues1
DetailsSite: {"description":"Involved in binding template-primer structures","evidences":[{"source":"PubMed","id":"8344956","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI17
Number of Residues1
DetailsSite: {"description":"Involved in the stabilization of the frayed 3' terminus at the exonuclease active site","evidences":[{"source":"PubMed","id":"19576228","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI18
Number of Residues1
DetailsSite: {"description":"Probably involved in binding template-primer structures","evidences":[{"source":"PubMed","id":"8226957","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI19
Number of Residues2
DetailsSite: {"description":"Probably involved in nucleotide binding selection","evidences":[{"source":"PubMed","id":"8537389","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI20
Number of Residues2
DetailsSite: {"description":"Binds ssDNA; Essential for 3'-5' exonucleolysis","evidences":[{"source":"PubMed","id":"8605889","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI21
Number of Residues1
DetailsSite: {"description":"Involved in the binding of DNA and dNTP","evidences":[{"source":"PubMed","id":"11917008","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI22
Number of Residues2
DetailsSite: {"description":"Stabilization of the incoming nucleotide","evidences":[{"source":"PubMed","id":"14672657","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI23
Number of Residues1
DetailsSite: {"description":"Interacts with the phosphate groups of the incoming nucleotide","evidences":[{"source":"PubMed","id":"11917008","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI24
Number of Residues1
DetailsSite: {"description":"Probably involved in nucleotide binding selection","evidences":[{"source":"PubMed","id":"9199402","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI25
Number of Residues1
DetailsSite: {"description":"Probably involved in positioning the templating nucleotide at the polymerization active site and in controlling nucleotide insertion fidelity","evidences":[{"source":"PubMed","id":"12805385","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI26
Number of Residues2
DetailsSite: {"description":"Probably involved in binding template-primer structures","evidences":[{"source":"PubMed","id":"8344956","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI27
Number of Residues2
DetailsSite: {"description":"Probably involved in binding template-primer structures","evidences":[{"source":"PubMed","id":"7962004","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI28
Number of Residues2
DetailsSite: {"description":"Probably involved in binding template-primer structures","evidences":[{"source":"PubMed","id":"7852344","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI29
Number of Residues1
DetailsSite: {"description":"Stabilizes the primer-terminus at the polymerization active site and contributes to the coordination between the exonuclease and polymerazation activities","evidences":[{"source":"PubMed","id":"24023769","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

243083

PDB entries from 2025-10-15

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