1SP4	Hydrolase Hydrolase Inhibitor	date	Mar 16, 2004
title	Crystal Structure Of Ns-134 In Complex With Bovine Cathepsin Headed Epoxysuccinyl Inhibitor Extends Along The Whole Acti Cleft
authors	I.Stern, N.Schaschke, L.Moroder, D.Turk
compound		source
Molecule: Cathepsin B Chain: A Fragment: Light Chain Ec: 3.4.22.1		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Tissue: Kidney
Molecule: Cathepsin B Chain: B Fragment: Heavy Chain Ec: 3.4.22.1		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Tissue: Kidney
symmetry	Space Group: P 43 21 2	R_factor 0.194 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 73.064 73.064 141.970 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	EP2	enzyme	Hydrolase E.C.3.4.22.1 BRENDA
related structures	by homologous chain: 1CPJ, 1QDQ
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of NS-134 in complex with bovine cathepsin B: a two headed epoxysuccinyl inhibitor extends along the whole active site cleft., Stern I, Schaschke N, Moroder L, Turk D, Biochem J 2004 Apr 15;Pt. PMID:15084146

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (49 Kb) [Save to disk] Biological Unit Coordinates (1sp4.pdb1.gz) 44 Kb LPC: Ligand-Protein Contacts for 1SP4 CSU: Contacts of Structural Units for 1SP4 Likely Quarternary Molecular Structure file(s) for 1SP4 Structure Factors (184 Kb) Retrieve 1SP4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SP4 from S2C, [Save to disk] Re-refined 1sp4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SP4 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 1SP4

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 1SP4, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1sp4.1, region A:,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: [1sp4_A] [1sp4_B] [1sp4_I] [1sp4] SWISS-PROT database: [P07688] Domain organization of [CATB_BOVIN] by SWISSPFAM Domain found in 1SP4: [Pept_C1 ] by SMART

Other resources with information on 1SP4

Community annotation for 1SP4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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