1B7X	Hydrolase Hydrolase Inhibitor	date	Jan 25, 1999
title	Structure Of Human Alpha-Thrombin Y225i Mutant Bound To D-Ph Chloromethylketone
authors	S.Caccia, K.Futterer, E.Di Cera, G.Waksman
compound		source
Molecule: Protein (Thrombin Light Chain) Chain: A Ec: 3.4.21.5 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Saccharomyces Cerevisiae Expression_system_common: Baker'S Yeast Expression_system_taxid: 4932 Expression_system_cell_line: Baby Hamster Kidney Cells (Bhk Expression_system_vector: Pnut
Molecule: Protein (Thrombin Heavy Chain) Chain: B Ec: 3.4.21.5 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Saccharomyces Cerevisiae Expression_system_common: Baker'S Yeast Expression_system_taxid: 4932 Expression_system_cell_line: Baby Hamster Kidney Cells (Bhk Expression_system_vector: Pnut
Molecule: Protein (Inhibitor) Chain: C Engineered: Yes Other_details: D-Phe-Pro-Arg-Chloromethylketone		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Saccharomyces Cerevisiae Expression_system_common: Baker'S Yeast Expression_system_taxid: 4932 Expression_system_cell_line: Baby Hamster Kidney Cells (Bhk Expression_system_vector: Pnut
symmetry	Space Group: P 21 21 21	R_factor 0.226 R_Free 0.282
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.600 73.700 89.900 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand		enzyme	Hydrolase E.C.3.4.21.5 BRENDA
related structures	by homologous chain: 1A46, 1KTT
Gene Ontology	Chain Function Process Component A B
Primary reference	Unexpected crucial role of residue 225 in serine proteases., Guinto ER, Caccia S, Rose T, Futterer K, Waksman G, Di Cera E, Proc Natl Acad Sci U S A 1999 Mar 2;96(5):1852-7. PMID:10051558

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (50 Kb) [Save to disk] Biological Unit Coordinates (1b7x.pdb1.gz) 45 Kb CSU: Contacts of Structural Units for 1B7X Likely Quarternary Molecular Structure file(s) for 1B7X Retrieve 1B7X in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B7X from S2C, [Save to disk]

View 1B7X 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 1B7X

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1B7X, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b7x.1, region A:,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: [1b7x_A] [1b7x_C] [1b7x] [1b7x_B] SWISS-PROT database: [P00734] Domain organization of [THRB_HUMAN] by SWISSPFAM Domain found in 1B7X: [Tryp_SPc ] by SMART

Other resources with information on 1B7X

Community annotation for 1B7X at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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