1BIX	Dna Repair	date	Jun 19, 1998
title	The Crystal Structure Of The Human Dna Repair Endonuclease H Suggests The Recognition Of Extra-Helical Deoxyribose At Dn Sites
authors	M.A.Gorman, S.Morera, D.G.Rothwell, E.De La Fortelle, C.D.Mol, J. I.D.Hickson, P.S.Freemont
compound		source
Molecule: Ap Endonuclease 1 Chain: A Ec: 4.2.99.18 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3)
symmetry	Space Group: C 1 2 1	R_factor 0.184 R_Free 0.269
crystal cell	length a length b length c angle alpha angle beta angle gamma 87.260 44.701 78.778 90.00 103.45 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	PT, SM	enzyme	Lyase E.C.4.2.99.18 BRENDA
related structures	by homologous chain: 1E9N, 1HD7
Gene Ontology	Chain Function Process Component A transcription corepressor ac... nuclease activity endonuclease activity endoribonuclease activity RNA-DNA hybrid ribonuclease ... exonuclease activity phosphodiesterase I activity... double-stranded DNA 3'-5' ex... 3'-5' exonuclease activity oxidoreductase activity
Primary reference	The crystal structure of the human DNA repair endonuclease HAP1 suggests the recognition of extra-helical deoxyribose at DNA abasic sites., Gorman MA, Morera S, Rothwell DG, de La Fortelle E, Mol CD, Tainer JA, Hickson ID, Freemont PS, EMBO J 1997 Nov 3;16(21):6548-58. PMID:9351835

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (52 Kb) [Save to disk] Biological Unit Coordinates (1bix.pdb1.gz) 48 Kb LPC: Ligand-Protein Contacts for 1BIX CSU: Contacts of Structural Units for 1BIX Likely Quarternary Molecular Structure file(s) for 1BIX Retrieve 1BIX in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1BIX from S2C, [Save to disk]

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Visual 3D analysis of 1BIX

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Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1BIX, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1bix__, region [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1bix_A] [1bix] SWISS-PROT database: [P27695] Domain organization of [APEX1_HUMAN] by SWISSPFAM

Other resources with information on 1BIX

Community annotation for 1BIX at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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