1EX3	Hydrolase	date	Apr 28, 2000
title	Crystal Structure Of Bovine Chymotrypsinogen A (Tetragonal)
authors	P.E.Pjura, A.M.Lenhoff, S.A.Leonard, A.G.Gittis
compound		source
Molecule: Chymotrypsinogen A Chain: A Ec: 3.4.21.1		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Organ: Pancreas
symmetry	Space Group: P 41 21 2	R_factor 0.204 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 114.900 114.900 52.800 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand		enzyme	Hydrolase E.C.3.4.21.1 BRENDA
related structures	by homologous chain: 1GL0
Gene Ontology	Chain Function Process Component A
Primary reference	Protein crystallization by design: chymotrypsinogen without precipitants., Pjura PE, Lenhoff AM, Leonard SA, Gittis AG, J Mol Biol 2000 Jul 7;300(2):235-9. PMID:10873462

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (42 Kb) [Save to disk] Biological Unit Coordinates (1ex3.pdb1.gz) 38 Kb CSU: Contacts of Structural Units for 1EX3 Likely Quarternary Molecular Structure file(s) for 1EX3 Retrieve 1EX3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1EX3 from S2C, [Save to disk]

View 1EX3 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 1EX3

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1EX3, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ex3a_, 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: [1ex3] [1ex3_A] SWISS-PROT database: [P00766] Domain organization of [CTRA_BOVIN] by SWISSPFAM Domain found in 1EX3: [Tryp_SPc ] by SMART

Other resources with information on 1EX3

Community annotation for 1EX3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1EX3 from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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