1qrh Summary

pdbe.org/1qrh
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X-RAY STRUCTURE OF THE DNA-ECO RI ENDONUCLEASE COMPLEXES WITH AN R145K MUTATION AT 2.7 A

A publication describing this structure is not available. The depositing authors are Choi, J.search; Kim, Y.search; Greene, P.search; Hager, P.search; Rosenberg, J.M.search

This crystal structure was determined using X-ray diffraction at a resolution of 2.5 Å and deposited in 1999.

The experimental data on which the structure is based was not deposited.

This PDB entry contains a complex of 2 biomacromolecules, namely 5'-(TP*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G*)-3' and ECO RI ENDONCULEASE.

The molecule most likely forms heterotetramers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A ECO RI ENDONCULEASE P00642 (17-277) (T2E1_ECOLX)search Escherichia colisearch 94% 261 100%


This entry contains 1 unique UniProt protein:

UniProt accession Name Organism PDB
P00642 (17 - 277) ECO RI ENDONCULEASE Escherichia coli

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (P00642) Restriction endonuclease EcoRIsearch Eco RI Endonuclease, subunit Asearch PF02963: Restriction endonuclease EcoRIsearch

Chain ID Biological process (GO) Molecular function (GO)
A (P00642) DNA restriction-modification systemsearch DNA catabolic process, endonucleolyticsearch nucleic acid phosphodiester bond hydrolysissearch hydrolase activitysearch DNA bindingsearch magnesium ion bindingsearch Type II site-specific deoxyribonuclease activitysearch metal ion bindingsearch endonuclease activitysearch nuclease activitysearch

Chain InterPro annotation
A Restriction endonuclease, type II, EcoRIsearch Restriction endonuclease type II-likesearch Restriction endonuclease, type II, EcoRI/MunIsearch