1TO2	Hydrolase	date	Jun 11, 2004
title	Crystal Structure Of The Complex Of Subtilisin Bpn' With Chy Inhibitor 2 M59k, In Ph 9 Cryosoak
authors	E.S.Radisky, G.Kwan, C.J.Karen Lu, D.E.Koshland Jr.
compound		source
Molecule: Subtilisin Bpn' Chain: E Synonym: Subtilisin Novo, Alkaline Protease Ec: 3.4.21.62 Engineered: Yes Mutation: Yes		Organism_scientific: Bacillus Amyloliquefaciens Organism_taxid: 1390 Gene: Apr Expression_system: Bacillus Subtilis Expression_system_taxid: 1423 Expression_system_strain: Bg2036 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pser25
Molecule: Chymotrypsin Inhibitor 2 Chain: I Engineered: Yes Mutation: Yes		Organism_scientific: Hordeum Vulgare Subsp. Vulgare Organism_common: Domesticated Barley Organism_taxid: 112509 Strain: Subsp. Vulgare Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21 (De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pci2m59k
symmetry	Space Group: P 65 2 2	R_factor 0.168 R_Free 0.183
crystal cell	length a length b length c angle alpha angle beta angle gamma 93.671 93.671 185.920 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.30 Å
ligand	15P, CA, CIT, NA	enzyme	Hydrolase E.C.3.4.21.62 BRENDA
note	1TO2 is a representative structure
related structures	by homologous chain: 1CSE, 1TM5
Gene Ontology	Chain Function Process Component E I
Primary reference	Binding, proteolytic, and crystallographic analyses of mutations at the protease--inhibitor interface of the subtilisin BPN'/chymotrypsin inhibitor 2 complex., Radisky ES, Kwan G, Karen Lu CJ, Koshland DE Jr, Biochemistry 2004 Nov 2;43(43):13648-56. PMID:15504027

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (68 Kb) [Save to disk] Biological Unit Coordinates (1to2.pdb1.gz) 62 Kb LPC: Ligand-Protein Contacts for 1TO2 CSU: Contacts of Structural Units for 1TO2 Likely Quarternary Molecular Structure file(s) for 1TO2 Structure Factors (795 Kb) Retrieve 1TO2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1TO2 from S2C, [Save to disk] Re-refined 1to2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1TO2 in 3D

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Visual 3D analysis of 1TO2

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1TO2 1TO2E 1TO2I from the CEP Server. Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1TO2, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1to2e_, region E [Jmol] [rasmolscript] [script source]     - Domain d1to2i_, region I [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: [1to2_I] [1to2] [1to2_E] SWISS-PROT database: [Q40059] [P00782] Domain organization of [Q40059_HORVU] [SUBT_BACAM] by SWISSPFAM

Other resources with information on 1TO2

Community annotation for 1TO2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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