1PPB	Hydrolase Hydrolase Inhibitor	date	Oct 24, 1991
title	The Refined 1.9 Angstroms Crystal Structure Of Human Alpha-T Interaction With D-Phe-Pro-Arg Chloromethylketone And Signi The Tyr-Pro-Pro-Trp Insertion Segment
authors	W.Bode
compound		source
Molecule: Alpha-Thrombin (Small Subunit) Chain: L Ec: 3.4.21.5 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Plasma
Molecule: Alpha-Thrombin (Large Subunit) Chain: H Ec: 3.4.21.5 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Plasma
symmetry	Space Group: P 21 21 21	R_factor 0.156 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 87.740 67.810 61.070 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.92 Å
ligand	0G6	enzyme	Hydrolase E.C.3.4.21.5 BRENDA
note	1PPB (Molecule of the Month:pdb25)
related structures	by homologous chain: 1C1V, 1K22, 1SFQ, 1ZRB
Gene Ontology	Chain Function Process Component H L
Primary reference	The refined 1.9 A crystal structure of human alpha-thrombin: interaction with D-Phe-Pro-Arg chloromethylketone and significance of the Tyr-Pro-Pro-Trp insertion segment., Bode W, Mayr I, Baumann U, Huber R, Stone SR, Hofsteenge J, EMBO J 1989 Nov;8(11):3467-75. PMID:2583108

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (66 Kb) [Save to disk] Biological Unit Coordinates (1ppb.pdb1.gz) 59 Kb LPC: Ligand-Protein Contacts for 1PPB CSU: Contacts of Structural Units for 1PPB Likely Quarternary Molecular Structure file(s) for 1PPB Retrieve 1PPB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1PPB from S2C, [Save to disk]

View 1PPB 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 1PPB

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1PPB, from MSDmotif at EBI Genome occurence of 1PPB's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ppb.1, region L:,H [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: [1ppb_L] [1ppb_H] [1ppb] [1ppb_I] SWISS-PROT database: [P00734] Domain organization of [THRB_HUMAN] by SWISSPFAM Domain found in 1PPB: [Tryp_SPc ] by SMART

Other resources with information on 1PPB

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

Movements, Movies and Images

Domain movements in 1PPB from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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