ISDA: 1T7P

Deposition Date 1997-09-24

Release Date 1998-02-25

Last Version Date 2024-02-14

Entry Detail

PDB ID:

1T7P

Keywords:

TRANSFERASE/DNA

Title:

T7 DNA POLYMERASE COMPLEXED TO DNA PRIMER/TEMPLATE,A NUCLEOSIDE TRIPHOSPHATE, AND ITS PROCESSIVITY FACTOR THIOREDOXIN

Biological Source:

Source Organism(s):

Enterobacteria phage T7 (Taxon ID: 10760)
Escherichia coli O157:H7 (Taxon ID: 83334)

Expression System(s):

Escherichia coli,

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.27

R-Value Work:

0.24

R-Value Observed:

0.24

Space Group:

P 21 21 2

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:DNA-directed DNA polymerase
Gene (Uniprot):5
Mutagens:DEL(118-123)
Chain IDs:C (auth: A)
Chain Length:698
Number of Molecules:1
Biological Source:Enterobacteria phage T7

UniProt ID:P00581 Pfam ID:PF00476

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Thioredoxin 1
Chain IDs:D (auth: B)
Chain Length:108
Number of Molecules:1
Biological Source:Escherichia coli O157:H7

UniProt ID:P0AA25 Pfam ID:PF00085

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(P*GP*CP*CP*AP*GP*TP*GP*CP*CP*AP*2DA)-3')
Chain IDs:A (auth: P)
Chain Length:11
Number of Molecules:1
Biological Source:

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(P*CP*CP*TP*TP*GP*GP*CP*AP*CP*TP*GP*GP*C)-3')
Chain IDs:B (auth: T)
Chain Length:13
Number of Molecules:1
Biological Source:

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
2DA	A	DA	2',3'-DIDEOXYADENOSINE-5'-MONOPHOSPHATE

Ligand Molecules

DG3

Primary Citation

Crystal structure of a bacteriophage T7 DNA replication complex at 2.2 A resolution.

Doublie, S, Tabor, S, Long, A.M, Richardson, C.C, Ellenberger, T.Show

Nature 391 251 258 (1998)

PMID: 9440688 DOI: 10.1038/34593

Abstact

DNA polymerases change their specificity for nucleotide substrates with each catalytic cycle, while achieving error frequencies in the range of 10(-5) to 10(-6). Here we present a 2.2 A crystal structure of the replicative DNA polymerase from bacteriophage T7 complexed with a primer-template and a nucleoside triphosphate in the polymerase active site. The structure illustrates how nucleotides are selected in a template-directed manner, and provides a structural basis for a metal-assisted mechanism of phosphoryl transfer by a large group of related polymerases.

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Protein

Chemical

Disease

Primary Citation of related structures

Abstact

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