1QLQ	Serine Protease Inhibitor	date	Sep 10, 1999
title	Bovine Pancreatic Trypsin Inhibitor (Bpti) Mutant With Alter Loop Sequence
authors	H.Czapinska, S.Krzywda, G.M.Sheldrick, J.Otlewski, M.Jaskolski
compound		source
Molecule: Pancreatic Trypsin Inhibitor Chain: A Synonym: Bpti, Aprotinin, Trasylol, Basic Protease Inhibito Engineered: Yes Mutation: Yes		Organism_scientific: Bos Taurus Organism_common: Bovine Organism_taxid: 9913 Organ: Pancreas Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_variant: T7
symmetry	Space Group: P 43 21 2	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 52.710 52.710 43.410 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.42 Å
ligand	SO4	enzyme
related structures	by homologous chain: 1P2J, 4PTI
Gene Ontology	Chain Function Process Component A
Primary reference	High-resolution structure of bovine pancreatic trypsin inhibitor with altered binding loop sequence., Czapinska H, Otlewski J, Krzywda S, Sheldrick GM, Jaskolski M, J Mol Biol 2000 Feb 4;295(5):1237-49. PMID:10653700

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (31 Kb) [Save to disk] Biological Unit Coordinates (1qlq.pdb1.gz) 25 Kb LPC: Ligand-Protein Contacts for 1QLQ CSU: Contacts of Structural Units for 1QLQ Likely Quarternary Molecular Structure file(s) for 1QLQ Structure Factors (180 Kb) Retrieve 1QLQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QLQ from S2C, [Save to disk] Re-refined 1qlq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1QLQ 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 1QLQ

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1QLQ from the CEP Server. Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1QLQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qlqa_, region A [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: [1qlq] [1qlq_A] SWISS-PROT database: [P00974] Domain organization of [BPT1_BOVIN] by SWISSPFAM Domain found in 1QLQ: [KU ] by SMART

Other resources with information on 1QLQ

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

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