9PAI	Hydrolase Inhibitor	date	Mar 11, 1999
title	Cleaved Substrate Variant Of Plasminogen Activator Inhibitor
authors	K.Aertgeerts, H.L.De Bondt, C.J.De Ranter, P.J.Declerck
compound		source
Molecule: Protein (Plasminogen Activator Inhibitor-1) Resid 364; Chain: A Engineered: Yes Mutation: Yes Other_details: Cleaved Substrate Variant		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Protein (Plasminogen Activator Inhibitor-1) Resid 397; Chain: B Engineered: Yes Other_details: Cleaved Substrate Variant		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: C 1 2 1	R_factor 0.181 R_Free 0.295
crystal cell	length a length b length c angle alpha angle beta angle gamma 151.860 47.520 62.730 90.00 113.95 90.00
method	X-Ray Diffraction	resolution	2.70 Å
note	9PAI is a representative structure
related structures	by homologous chain: 1C5G, 1DB2
Gene Ontology	Chain Function Process Component A negative regulation of endop... negative regulation of smoot... B
Primary reference	Mechanisms contributing to the conformational and functional flexibility of plasminogen activator inhibitor-1., Aertgeerts K, De Bondt HL, De Ranter CJ, Declerck PJ, Nat Struct Biol 1995 Oct;2(10):891-7. PMID:7552714

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (60 Kb) [Save to disk] Biological Unit Coordinates (9pai.pdb1.gz) 56 Kb CSU: Contacts of Structural Units for 9PAI Likely Quarternary Molecular Structure file(s) for 9PAI Structure Factors (54 Kb) Retrieve 9PAI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 9PAI from S2C, [Save to disk] Re-refined 9pai structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 9PAI 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 9PAI

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 9PAI, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d9paia_, 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: [9pai] [9pai_B] [9pai_A] SWISS-PROT database: [P05121] Domain organization of [PAI1_HUMAN] by SWISSPFAM Domain found in 9PAI: [SERPIN ] by SMART

Other resources with information on 9PAI

Community annotation for 9PAI at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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