ISDA

Deposition Date 1996-09-01

Release Date 1997-09-05

Last Version Date 2024-02-07

Entry Detail

PDB ID:

1ECR

Keywords:

REPLICATION/DNA

Title:

ESCHERICHIA COLI REPLICATION TERMINATOR PROTEIN (TUS) COMPLEXED WITH DNA

Biological Source:

Source Organism:

Escherichia coli (Taxon ID: 37762)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.70 Å

R-Value Free:

0.31

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 41 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:PROTEIN (REPLICATION-TERMINATOR PROTEIN)
Gene (Uniprot):tus
Chain IDs:C (auth: A)
Chain Length:309
Number of Molecules:1
Biological Source:Escherichia coli

UniProt ID:P16525 Pfam ID:PF05472

Primary Citation

Structure of a replication-terminator protein complexed with DNA.

Kamada, K, Horiuchi, T, Ohsumi, K, Shimamoto, N, Morikawa, K, Kamada, K, Ohsumi, K, Horiuchi, T, Shimamoto, N, Morikawa, K.Show

Nature 383 598 603 (1996)

PMID: 8857533 DOI: 10.1038/383598a0

Abstact

The crystal structure of the Escherichia coli replication-terminator protein (Tus) bound to terminus-site (Ter) DNA has been determined at 2.7 A resolution. The Tus protein folds into a previously undescribed architecture divided into two domains by a central basic cleft. This cleft accommodates locally deformed B-form Ter DNA and makes extensive contacts with the major groove, mainly through two interdomain beta-strands. The unusual structural features of this complex may explain how the replication fork is halted in only one direction.

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Chemical

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Primary Citation of related structures