1NX3	Hydrolase	date	Feb 07, 2003
title	Calpain Domain Vi In Complex With The Inhibitor Pd150606
authors	B.Todd, D.Moore, C.C.S.Deivanayagam, G.D.Lin, D.Chattopadhyay, M K.K.W.Wang, S.V.L.Narayana
compound		source
Molecule: Calcium-Dependent Protease, Small Subunit Chain: A Fragment: Domain Vi Synonym: Calpain Regulatory Subunit, Calcium-Activated Neut Proteinase, Canp; Engineered: Yes		Organism_scientific: Sus Scrofa Organism_common: Pig Organism_taxid: 9823 Gene: Capns1 Or Capn4 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 31 2 1	R_factor 0.210 R_Free 0.253
crystal cell	length a length b length c angle alpha angle beta angle gamma 78.578 78.578 77.891 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.45 Å
ligand	CA, ISA	enzyme
related structures	by homologous chain: 1AJ5, 1KFU
Gene Ontology	Chain Function Process Component A
Primary reference	A structural model for the inhibition of calpain by calpastatin: crystal structures of the native domain VI of calpain and its complexes with calpastatin peptide and a small molecule inhibitor., Todd B, Moore D, Deivanayagam CC, Lin GD, Chattopadhyay D, Maki M, Wang KK, Narayana SV, J Mol Biol 2003 Apr 18;328(1):131-46. PMID:12684003

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (35 Kb) [Save to disk] Biological Unit Coordinates (1nx3.pdb1.gz) 58 Kb LPC: Ligand-Protein Contacts for 1NX3 CSU: Contacts of Structural Units for 1NX3 Likely Quarternary Molecular Structure file(s) for 1NX3 Retrieve 1NX3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NX3 from S2C, [Save to disk]

View 1NX3 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 1NX3

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1NX3, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1nx3a_, 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: [1nx3] [1nx3_A] SWISS-PROT database: [P04574] Domain organization of [CPNS1_PIG] by SWISSPFAM Domain found in 1NX3: [EFh ] by SMART

Other resources with information on 1NX3

Community annotation for 1NX3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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