1QLP	Serine Protease Inhibitor	date	Sep 10, 1999
title	2.0 Angstrom Structure Of Intact Alpha-1-Antitrypsin: A Cano Template For Active Serpins
authors	P.R.Elliott, X.Y.Pei, T.Dafforn, R.J.Read, R.W.Carrell, D.A.Lomas
compound		source
Molecule: Alpha-1-Antitrypsin Chain: A Synonym: Alpha-1-Proteinase Inhibitor, Alpha-1-Antiproteina Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Liver Tissue: Hepatocytes Cell: Neutrophils Cellular_location: Cytoplasm Gene: Alpha-1-Antitrypsin Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Ptermat Expression_system_gene: Alpha-1-Antitrypsin
symmetry	Space Group: C 1 2 1	R_factor 0.231 R_Free 0.266
crystal cell	length a length b length c angle alpha angle beta angle gamma 114.680 39.260 90.270 90.00 104.21 90.00
method	X-Ray Diffraction	resolution	2.00 Å
note	1QLP supersedes 2PSI
related structures	by homologous chain: 1HP7
Gene Ontology	Chain Function Process Component A COPII vesicle coating
Primary reference	Topography of a 2.0 A structure of alpha1-antitrypsin reveals targets for rational drug design to prevent conformational disease., Elliott PR, Pei XY, Dafforn TR, Lomas DA, Protein Sci. 2000 Jul;9(7):1274-81. PMID:10933492

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (66 Kb) [Save to disk] Biological Unit Coordinates (1qlp.pdb1.gz) 61 Kb CSU: Contacts of Structural Units for 1QLP Likely Quarternary Molecular Structure file(s) for 1QLP Structure Factors (185 Kb) Retrieve 1QLP in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QLP from S2C, [Save to disk] Re-refined 1qlp structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1QLP 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 1QLP

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 1QLP, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qlpa_, 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: [1qlp] [1qlp_A] SWISS-PROT database: [P01009] Domain organization of [A1AT_HUMAN] by SWISSPFAM Domain found in 1QLP: [SERPIN ] by SMART

Other resources with information on 1QLP

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

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