1BTH	Complex (Serine Protease Inhibitor)	date	Dec 03, 1996
title	Structure Of Thrombin Complexed With Bovine Pancreatic Trypsin Inhibitor
authors	A.Van De Locht, W.Bode, M.T.Stubbs
compound		source
Molecule: Thrombin Chain: L, J Ec: 3.4.21.5 Engineered: Yes Mutation: Yes		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Organ: Lung Expression_system: Mesocricetus Auratus Expression_system_common: Golden Hamster Expression_system_taxid: 10036 Expression_system_cell_line: Bhk-21
Molecule: Thrombin Chain: H, K Ec: 3.4.21.5 Engineered: Yes Mutation: Yes		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Organ: Lung Expression_system: Mesocricetus Auratus Expression_system_common: Golden Hamster Expression_system_taxid: 10036 Expression_system_cell_line: Bhk-21
Molecule: Bovine Pancreatic Trypsin Inhibitor Chain: P, Q		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Organ: Lung
symmetry	Space Group: P 1 21 1	R_factor 0.196 R_Free 0.271
crystal cell	length a length b length c angle alpha angle beta angle gamma 71.200 74.500 83.400 90.00 92.50 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand		enzyme	Hydrolase E.C.3.4.21.5 BRENDA
related structures	by homologous chain: 1DX5, 1MKW, 2KAI, 3TGJ
Primary reference	The thrombin E192Q-BPTI complex reveals gross structural rearrangements: implications for the interaction with antithrombin and thrombomodulin., van de Locht A, Bode W, Huber R, Le Bonniec BF, Stone SR, Esmon CT, Stubbs MT, EMBO J 1997 Jun 2;16(11):2977-84. PMID:9214615

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (125 Kb) [Save to disk] Biological Unit Coordinates (1bth.pdb1.gz) 62 Kb Biological Unit Coordinates (1bth.pdb2.gz) 61 Kb CSU: Contacts of Structural Units for 1BTH Likely Quarternary Molecular Structure file(s) for 1BTH Retrieve 1BTH in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1BTH from S2C, [Save to disk]

View 1BTH 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1BTH

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1BTH, from MSDmotif at EBI Genome occurence of 1BTH's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1bth.2, region J:,K [Jmol] [rasmolscript] [script source]     - Domain d1bth.1, region L:,H [Jmol] [rasmolscript] [script source]     - Domain d1bthp_, region P [Jmol] [rasmolscript] [script source]     - Domain d1bthq_, region Q [Jmol] [rasmolscript] [script source] Fold representative 1bth from FSSP and Dali (Families of Structurally Similar Proteins) 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: [1bth_H] [1bth_J] [1bth_K] [1bth_L] [1bth_P] [1bth_Q] SWISS-PROT database: [P00974] [P00734] Domain organization of [BPT1_BOVIN] [THRB_HUMAN] by SWISSPFAM Domains found in 1BTH: [KU] [Tryp_SPc ] by SMART Alignments of the sequence of 1BTH with the sequences similar proteins can be viewed for 1BTH's classification [BPT1_BOVIN] [THRB_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [BPT1_BOVIN] [THRB_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1BTH

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

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