3U44	Hydrolase Dna	date	Oct 07, 2011
title	Crystal Structure Of Addab-Dna Complex
authors	K.Saikrishnan, W.Krajewski, D.Wigley
compound		source
Molecule: Atp-Dependent Helicasenuclease Subunit A Chain: A Synonym: Atp-Dependent Helicasenuclease Adda Ec: 3.1.-.-, 3.6.4.12 Engineered: Yes Mutation: Yes		Organism_scientific: Bacillus Subtilis Organism_taxid: 1423 Gene: Adda, Bsu10630 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Atp-Dependent Helicasedeoxyribonuclease Subunit Chain: B Synonym: Atp-Dependent Helicasenuclease Addb Ec: 3.1.-.-, 3.6.4.12 Engineered: Yes Mutation: Yes		Organism_scientific: Bacillus Subtilis Organism_taxid: 1423 Gene: Addb, Bsu10620 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Dna (36-Mer) Chain: X Engineered: Yes		Synthetic: Yes
symmetry	Space Group: P 1 21 1	R_factor 0.233 R_Free 0.284
crystal cell	length a length b length c angle alpha angle beta angle gamma 100.230 138.960 102.970 90.00 105.33 90.00
method	X-Ray Diffraction	resolution	3.20 Å
ligand	SF4	enzyme	Hydrolase E.C.3.1 BRENDA
Gene Ontology	Chain Function Process Component A DNA helicase activity nuclease activity exonuclease activity 3'-5' exonuclease activity 3'-5' DNA helicase activity B DNA helicase activity nuclease activity exonuclease activity 5'-3' exonuclease activity 3'-5' DNA helicase activity
Primary reference	Insights into Chi recognition from the structure of an AddAB-type helicase-nuclease complex., Saikrishnan K, Yeeles JT, Gilhooly NS, Krajewski WW, Dillingham MS, Wigley DB, EMBO J. 2012 Feb 3. doi: 10.1038/emboj.2012.9. PMID:22307084

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (387 Kb) [Save to disk] Biological Unit Coordinates (3u44.pdb1.gz) 380 Kb LPC: Ligand-Protein Contacts for 3U44 CSU: Contacts of Structural Units for 3U44 Structure Factors (713 Kb) Retrieve 3U44 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3U44 from S2C, [Save to disk] Re-refined 3u44 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Visual 3D analysis of 3U44

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 3U44, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3u44_X] [3u44_B] [3u44] [3u44_A] SWISS-PROT database: Domain organization of by SWISSPFAM

Other resources with information on 3U44

Community annotation for 3U44 at PDBWiki (http://pdbwiki.org)

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