5CHA	Hydrolase (Serine Proteinase)	date	Jan 22, 1985
title	The Refinement And The Structure Of The Dimer Of Alpha- Chymotrypsin At 1.67-Angstroms Resolution
authors	R.A.Blevins, A.Tulinsky
compound		source
Molecule: Alpha-Chymotrypsin A Chain: A, E Ec: 3.4.21.1		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913
Molecule: Alpha-Chymotrypsin A Chain: B, F Ec: 3.4.21.1		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913
Molecule: Alpha-Chymotrypsin A Chain: C, G Ec: 3.4.21.1		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913
symmetry	Space Group: P 1 21 1	R_factor R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 49.290 67.480 65.940 90.00 102.02 90.00
method	X-Ray Diffraction	resolution	1.67 Å
ligand		enzyme	Hydrolase E.C.3.4.21.1 BRENDA
note	5CHA supersedes 3CHA
related structures	by homologous chain: 3VGC, 8GCH
Gene Ontology	Chain Function Process Component C, G F, B
Primary reference	The refinement and the structure of the dimer of alpha-chymotrypsin at 1.67-A resolution., Blevins RA, Tulinsky A, J Biol Chem 1985 Apr 10;260(7):4264-75. PMID:3980476

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (81 Kb) [Save to disk] Biological Unit Coordinates (5cha.pdb1.gz) 76 Kb CSU: Contacts of Structural Units for 5CHA Likely Quarternary Molecular Structure file(s) for 5CHA Retrieve 5CHA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 5CHA from S2C, [Save to disk]

View 5CHA 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 5CHA

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 5CHA, from MSDmotif at EBI Genome occurence of 5CHA's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d5chaa_, region A [Jmol] [rasmolscript] [script source]     - Domain d5chab_, region B [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: [5cha_A] [5cha_E] [5cha_C] [5cha_F] [5cha_B] [5cha] [5cha_G] SWISS-PROT database: [P00766] Domain organization of [CTRA_BOVIN] by SWISSPFAM Domain found in 5CHA: [Tryp_SPc ] by SMART

Other resources with information on 5CHA

Community annotation for 5CHA at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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