1IAD	Zinc Endopeptidase	date	May 09, 1994
title	Refined 1.8 Angstroms X-Ray Crystal Structure Of Astacin, A Zinc-Endopeptidase From The Crayfish Astacus Astacus L. Structure Determination, Refinement, Molecular Structure And Comparison To Thermolysin
authors	F.X.Gomis-Rueth, W.Stoecker, W.Bode
compound		source
Molecule: Astacin Chain: A Ec: 3.4.24.21 Engineered: Yes		Organism_scientific: Astacus Astacus Organism_common: Broad-Fingered Crayfish Organism_taxid: 6715
symmetry	Space Group: P 31 2 1	R_factor 0.155 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 62.000 62.000 98.870 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand		enzyme	Hydrolase E.C.3.4.24.21 BRENDA
related structures	by homologous chain: 1QJI
Gene Ontology	Chain Function Process Component A
Primary reference	Refined 1.8 A X-ray crystal structure of astacin, a zinc-endopeptidase from the crayfish Astacus astacus L. Structure determination, refinement, molecular structure and comparison with thermolysin., Gomis-Ruth FX, Stocker W, Huber R, Zwilling R, Bode W, J Mol Biol 1993 Feb 20;229(4):945-68. PMID:8445658

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (40 Kb) [Save to disk] Biological Unit Coordinates (1iad.pdb1.gz) 36 Kb CSU: Contacts of Structural Units for 1IAD Likely Quarternary Molecular Structure file(s) for 1IAD Retrieve 1IAD in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IAD from S2C, [Save to disk]

View 1IAD 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 1IAD

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1IAD, from MSDmotif at EBI Genome occurence of 1IAD's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1iad__, 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: [1iad] [1iad_A] SWISS-PROT database: [P07584] Domain organization of [ASTA_ASTFL] by SWISSPFAM Domain found in 1IAD: [ZnMc ] by SMART

Other resources with information on 1IAD

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

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