1MDW	Hydrolase	date	Aug 07, 2002
title	Crystal Structure Of Calcium-Bound Protease Core Of Calpain The Basis For Intrinsic Inactivation
authors	T.Moldoveanu, C.M.Hosfield, D.Lim, Z.Jia, P.L.Davies
compound		source
Molecule: Calpain II, Catalytic Subunit Chain: A, B Fragment: Protease Core Domains I And II (Residues 17-346) Synonym: Calcium-Activated Neutral Proteinase, Canp, M-Type Calpain, Millimolar-Calpain; Ec: 3.4.22.17 Engineered: Yes Mutation: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Gene: Calpain II Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet24d
symmetry	Space Group: P 1 21 1	R_factor 0.207 R_Free 0.243
crystal cell	length a length b length c angle alpha angle beta angle gamma 62.600 80.600 75.300 90.00 103.90 90.00
method	X-Ray Diffraction	resolution	1.95 Å
ligand	CA	enzyme	Hydrolase E.C.3.4.22.17 BRENDA
related structures	by homologous chain: 1KXR, 1TLO
Gene Ontology	Chain Function Process Component A, B
Primary reference	Calpain silencing by a reversible intrinsic mechanism., Moldoveanu T, Hosfield CM, Lim D, Jia Z, Davies PL, Nat Struct Biol 2003 May;10(5):371-8. PMID:12665854

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (112 Kb) [Save to disk] Biological Unit Coordinates (1mdw.pdb1.gz) 55 Kb Biological Unit Coordinates (1mdw.pdb2.gz) 55 Kb LPC: Ligand-Protein Contacts for 1MDW CSU: Contacts of Structural Units for 1MDW Likely Quarternary Molecular Structure file(s) for 1MDW Structure Factors (386 Kb) Retrieve 1MDW in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1MDW from S2C, [Save to disk] Re-refined 1mdw structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1MDW 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 1MDW

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 1MDW, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1mdwa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1mdwb_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1mdw] [1mdw_A] [1mdw_B] SWISS-PROT database: [Q07009] Domain organization of [CAN2_RAT] by SWISSPFAM Domain found in 1MDW: [CysPc ] by SMART

Other resources with information on 1MDW

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

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