1SZC	Gene Regulation	date	Apr 05, 2004
title	Structural Basis For Nicotinamide Cleavage And Adp-Ribose Tr Nad+-Dependent Sir2 Histoneprotein Deacetylases
authors	K.Zhao, R.Harshaw, X.Chai, R.Marmorstein
compound		source
Molecule: Nad-Dependent Deacetylase Hst2 Chain: A Fragment: Catalytic Core Domain Synonym: Homologous To Sir2 Protein 2 Ec: 3.5.1.- Engineered: Yes		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Organism_taxid: 4932 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 (Gold) Expression_system_vector_type: Plasmid Expression_system_plasmid: Hst2(1-294)
Molecule: Histone H4 Peptide Chain: B Engineered: Yes		Synthetic: Yes Other_details: The Peptide Was Chemically Synthesized. The Of The Peptide Naturally Occurs In Saccharomyces Cerevisiae Yeast).
symmetry	Space Group: P 32 2 1	R_factor 0.210 R_Free 0.239
crystal cell	length a length b length c angle alpha angle beta angle gamma 105.267 105.267 66.609 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.75 Å
ligand	ALY, CL, CNA, GOL, ZN	enzyme	Hydrolase E.C.3.5.1 BRENDA
related structures	by homologous chain: 1Q14, 1SZD
Gene Ontology	Chain Function Process Component A
Primary reference	Structural basis for nicotinamide cleavage and ADP-ribose transfer by NAD(+)-dependent Sir2 histone/protein deacetylases., Zhao K, Harshaw R, Chai X, Marmorstein R, Proc Natl Acad Sci U S A 2004 Jun 8;101(23):8563-8. Epub 2004 May 18. PMID:15150415

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (62 Kb) [Save to disk] Biological Unit Coordinates (1szc.pdb1.gz) 56 Kb Biological Unit Coordinates (1szc.pdb2.gz) 110 Kb LPC: Ligand-Protein Contacts for 1SZC CSU: Contacts of Structural Units for 1SZC Likely Quarternary Molecular Structure file(s) for 1SZC Structure Factors (622 Kb) Retrieve 1SZC in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SZC from S2C, [Save to disk] Re-refined 1szc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SZC in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.

Visual 3D analysis of 1SZC

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 1SZC, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1szca_, region A [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: [1szc] [1szc_B] [1szc_A] SWISS-PROT database: [P02309] [P53686] Domain organization of [H4_YEAST] [HST2_YEAST] by SWISSPFAM

Other resources with information on 1SZC

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

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Images from IMB Jena Image Library of Biological Macromolecules.

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