1M93	Viral Protein	date	Jul 26, 2002
title	1.65 A Structure Of Cleaved Viral Serpin Crma
authors	M.Simonovic, P.G.W.Gettins, K.Volz
compound		source
Molecule: Serine Proteinase Inhibitor 2 Chain: A Fragment: Residues 1-55 Synonym: Cytokine Response Modifier Protein A, Serpin 2, Se Inhibitor, Hemorrhage-Inducing 38 Kda Protein; Engineered: Yes		Organism_scientific: Cowpox Virus Organism_taxid: 10243 Gene: Crma Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sg13009 Expression_system_plasmid: Pqe-60
Molecule: Serine Proteinase Inhibitor 2 Chain: B Fragment: Residues 56-300 Synonym: Cytokine Response Modifier Protein A, Serpin 2, Se Inhibitor, Hemorrhage-Inducing 38 Kda Protein; Engineered: Yes Mutation: Yes		Organism_scientific: Cowpox Virus Organism_taxid: 10243 Gene: Crma Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sg13009 Expression_system_plasmid: Pqe-60
Molecule: Serine Proteinase Inhibitor 2 Chain: C Fragment: Residues 301-341 Synonym: Cytokine Response Modifier Protein A, Serpin 2, Se Inhibitor, Hemorrhage-Inducing 38 Kda Protein; Engineered: Yes Mutation: Yes		Organism_scientific: Cowpox Virus Organism_taxid: 10243 Gene: Crma Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sg13009 Expression_system_plasmid: Pqe-60
symmetry	Space Group: P 21 21 21	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 49.520 92.590 100.630 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.65 Å
ligand	PO4	enzyme
note	1M93 is a representative structure
related structures	by homologous chain: 1F0C, 1HLE
Gene Ontology	Chain Function Process Component B
Primary reference	Crystal structure of viral serpin crmA provides insights into its mechanism of cysteine proteinase inhibition., Simonovic M, Gettins PGW, Volz K, Protein Sci 2000 Aug;9(8):1423-7. PMID:10975564

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (60 Kb) [Save to disk] Biological Unit Coordinates (1m93.pdb1.gz) 55 Kb LPC: Ligand-Protein Contacts for 1M93 CSU: Contacts of Structural Units for 1M93 Likely Quarternary Molecular Structure file(s) for 1M93 Structure Factors (589 Kb) Retrieve 1M93 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1M93 from S2C, [Save to disk] Re-refined 1m93 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1M93 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 1M93

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 1M93, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1m93.1, region A:,B:,C [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: [1m93] [1m93_A] [1m93_B] [1m93_C] SWISS-PROT database: [P07385] Domain organization of [SPI2_CWPXB] by SWISSPFAM Domain found in 1M93: [SERPIN ] by SMART

Other resources with information on 1M93

Community annotation for 1M93 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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