2BTC	Hydrolase Hydrolase Inhibitor	date	Dec 11, 1998
title	Bovine Trypsin In Complex With Squash Seed Inhibitor (Cucurb Trypsin Inhibitor II)
authors	R.Helland, G.I.Berglund, J.Otlewski, W.Apostoluk, O.A.Andersen, N.P.Willassen, A.O.Smalas
compound		source
Molecule: Protein (Trypsin) Chain: E Ec: 3.4.21.4		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Organ: Pancreas
Molecule: Protein (Trypsin Inhibitor) Chain: I Synonym: Cpti-II		Organism_scientific: Cucurbita Pepo Organism_taxid: 3663 Organ: Squash Seeds
symmetry	Space Group: P 21 21 21	R_factor 0.183 R_Free 0.212
crystal cell	length a length b length c angle alpha angle beta angle gamma 59.100 55.700 74.900 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.50 Å
ligand	CA	enzyme	Hydrolase E.C.3.4.21.4 BRENDA
related structures	by homologous chain: 1GJ6, 1O34
Gene Ontology	Chain Function Process Component E I endopeptidase inhibitor acti... serine-type endopeptidase in...
Primary reference	High-resolution structures of three new trypsin-squash-inhibitor complexes: a detailed comparison with other trypsins and their complexes., Helland R, Berglund GI, Otlewski J, Apostoluk W, Andersen OA, Willassen NP, Smalas AO, Acta Crystallogr D Biol Crystallogr 1999 Jan;55 ( Pt 1):139-48. PMID:10089404

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (45 Kb) [Save to disk] Biological Unit Coordinates (2btc.pdb1.gz) 40 Kb LPC: Ligand-Protein Contacts for 2BTC CSU: Contacts of Structural Units for 2BTC Likely Quarternary Molecular Structure file(s) for 2BTC Structure Factors (257 Kb) Retrieve 2BTC in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2BTC from S2C, [Save to disk] Re-refined 2btc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2BTC 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 2BTC

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 2BTC 2BTCE 2BTCI 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 2BTC, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2btce_, region E [Jmol] [rasmolscript] [script source]     - Domain d2btci_, 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: [2btc] [2btc_I] [2btc_E] SWISS-PROT database: [P10293] [P00760] Domain organization of [ITR3_CUCPE] [TRY1_BOVIN] by SWISSPFAM Domains found in 2BTC: [PTI] [Tryp_SPc ] by SMART

Other resources with information on 2BTC

Community annotation for 2BTC at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014,2022 Bioinformatics Unit Weizmann Institute of Science

---