2STA	Hydrolase Hydrolase Inhibitor	date	Dec 10, 1998
title	Anionic Salmon Trypsin In Complex With Squash Seed Inhibitor (Cucurbita Maxima Trypsin Inhibitor I)
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: Salmo Salar Organism_common: Atlantic Salmon Organism_taxid: 8030 Tissue: Pancreatic
Molecule: Protein (Trypsin Inhibitor) Chain: I		Organism_scientific: Cucurbita Maxima Organism_common: Winter Squash Organism_taxid: 3661 Organ: Squash Seeds
symmetry	Space Group: P 21 21 21	R_factor 0.193 R_Free 0.233
crystal cell	length a length b length c angle alpha angle beta angle gamma 62.300 63.700 82.300 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.80 Å
ligand	CA	enzyme	Hydrolase E.C.3.4.21.4 BRENDA
related structures	by homologous chain: 1SLU, 3BTF
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 (2sta.pdb1.gz) 41 Kb LPC: Ligand-Protein Contacts for 2STA CSU: Contacts of Structural Units for 2STA Likely Quarternary Molecular Structure file(s) for 2STA Structure Factors (220 Kb) Retrieve 2STA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2STA from S2C, [Save to disk] Re-refined 2sta structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2STA 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 2STA

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 2STA, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d2stae_, region E [Jmol] [rasmolscript] [script source]     - Domain d2stai_, 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: [2sta] [2sta_I] [2sta_E] SWISS-PROT database: [P01074] [P35031] Domain organization of [ITR1_CUCMA] [TRY1_SALSA] by SWISSPFAM Domains found in 2STA: [PTI] [Tryp_SPc ] by SMART

Other resources with information on 2STA

Community annotation for 2STA 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

---