2AH4	Hydrolase	date	Jul 26, 2005
title	Guanidinobenzoyl-Trypsin Acyl-Enzyme At 1.13 A Resolution
authors	E.S.Radisky, J.M.Lee, C.J.Lu, D.E.Koshland Jr.
compound		source
Molecule: Beta-Trypsin Chain: X Synonym: Cationic Trypsin Ec: 3.4.21.4		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Organ: Pancreas
symmetry	Space Group: P 21 21 21	R_factor 0.119 R_Free 0.146
crystal cell	length a length b length c angle alpha angle beta angle gamma 54.446 57.908 66.771 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.13 Å
ligand	CA, GBS, SO4 BindingDB	enzyme	Hydrolase E.C.3.4.21.4 BRENDA
Gene Ontology	Chain Function Process Component X
Primary reference	Insights into the serine protease mechanism from atomic resolution structures of trypsin reaction intermediates., Radisky ES, Lee JM, Lu CJ, Koshland DE Jr, Proc Natl Acad Sci U S A. 2006 May 2;103(18):6835-40. Epub 2006 Apr 24. PMID:16636277

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (86 Kb) [Save to disk] Biological Unit Coordinates (2ah4.pdb1.gz) 80 Kb LPC: Ligand-Protein Contacts for 2AH4 CSU: Contacts of Structural Units for 2AH4 Likely Quarternary Molecular Structure file(s) for 2AH4 Structure Factors (537 Kb) Retrieve 2AH4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2AH4 from S2C, [Save to disk] Re-refined 2ah4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2AH4 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 2AH4

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 2AH4, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2ah4_X] [2ah4] SWISS-PROT database: [P00760] Domain organization of [TRY1_BOVIN] by SWISSPFAM Domain found in 2AH4: [Tryp_SPc ] by SMART

Other resources with information on 2AH4

Community annotation for 2AH4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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