1NX0 Hydrolase Hydrolase Inhibitor date Feb 07, 2003
title Structure Of Calpain Domain 6 In Complex With Calpastatin Di
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, B
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

Molecule: Calpastatin
Chain: C, D
Fragment: Dic, Residues 230-241
Synonym: Calpain Inhibitor
Engineered: Yes

Organism_scientific: Sus Scrofa
Organism_common: Pig
Organism_taxid: 9823
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Small Molecule Inhibitor
Chain: E
Engineered: Yes

Synthetic: Yes
Other_details: The Peptide Was Chemically Synthesized.
symmetry Space Group: P 21 21 21
R_factor 0.218 R_Free 0.261
crystal
cell
length a length b length c angle alpha angle beta angle gamma
53.780 83.300 92.150 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.30 Å
ligand CA enzyme
related structures by homologous chain: 1AJ5, 1DVI
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceA 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] (68 Kb) [Save to disk]
  • Biological Unit Coordinates (1nx0.pdb1.gz) 63 Kb
  • LPC: Ligand-Protein Contacts for 1NX0
  • CSU: Contacts of Structural Units for 1NX0
  • Likely Quarternary Molecular Structure file(s) for 1NX0
  • Retrieve 1NX0 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1NX0 from S2C, [Save to disk]
  • View 1NX0 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 1NX0
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1NX0, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1nx0a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1nx0b_, 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: [1nx0_A] [1nx0_D] [1nx0_C] [1nx0_E] [1nx0] [1nx0_B]
  • SWISS-PROT database: [P04574] [P49342]
  • Domain organization of [CPNS1_PIG] [ICAL_CERAE] by SWISSPFAM
  • Domain found in 1NX0: [EFh ] by SMART
  • Other resources with information on 1NX0
  • Community annotation for 1NX0 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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