3ER5	Hydrolase Hydrolase Inhibitor	date	Jan 05, 1991
title	The Active Site Of Aspartic Proteinases
authors	D.Bailey, B.Veerapandian, J.Cooper, M.Szelke, T.L.Blundell
compound		source
Molecule: Endothiapepsin Chain: E Ec: 3.4.23.6 Engineered: Yes		Organism_scientific: Cryphonectria Parasitica Organism_taxid: 5116
Molecule: H-189 Chain: I Engineered: Yes		Synthetic: Yes
symmetry	Space Group: P 1 21 1	R_factor 0.150 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 43.100 75.400 42.800 90.00 97.00 90.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	STA	enzyme	Hydrolase E.C.3.4.23.6 BRENDA
related structures	by homologous chain: 1EPN, 5ER2
Gene Ontology	Chain Function Process Component E
Primary reference	X-ray-crystallographic studies of complexes of pepstatin A and a statine-containing human renin inhibitor with endothiapepsin., Bailey D, Cooper JB, Veerapandian B, Blundell TL, Atrash B, Jones DM, Szelke M, Biochem J. 1993 Jan 15;289 ( Pt 2):363-71. PMID:8424781

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (56 Kb) [Save to disk] Biological Unit Coordinates (3er5.pdb1.gz) 52 Kb LPC: Ligand-Protein Contacts for 3ER5 CSU: Contacts of Structural Units for 3ER5 Likely Quarternary Molecular Structure file(s) for 3ER5 Retrieve 3ER5 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3ER5 from S2C, [Save to disk]

View 3ER5 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 3ER5

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 3ER5, from MSDmotif at EBI Genome occurence of 3ER5's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d3er5e_, region E [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: [3er5] [3er5_E] [3er5_I] SWISS-PROT database: [P01017] [P11838] Domain organization of [ANGT_BOVIN] [CARP_CRYPA] by SWISSPFAM

Other resources with information on 3ER5

Community annotation for 3ER5 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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