7API	Proteinase Inhibitor	date	Sep 08, 1988
title	The S Variant Of Human Alpha1-Antitrypsin, Structure And Imp For Function And Metabolism
authors	H.Loebermann, R.Tokuoka, J.Deisenhofer, R.Huber
compound		source
Molecule: Alpha 1-Antitrypsin Chain: A Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606
Molecule: Alpha 1-Antitrypsin Chain: B Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606
symmetry	Space Group: P 43 21 2	R_factor 0.193 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 120.500 120.500 113.500 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	CYS, MAN, NAG	enzyme
note	7API supersedes 5API
related structures	by homologous chain: 1D5S, 1PSI
Gene Ontology	Chain Function Process Component A
Primary reference	The S variant of human alpha 1-antitrypsin, structure and implications for function and metabolism., Engh R, Lobermann H, Schneider M, Wiegand G, Huber R, Laurell CB, Protein Eng 1989 Mar;2(6):407-15. PMID:2785270

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (71 Kb) [Save to disk] Biological Unit Coordinates (7api.pdb1.gz) 65 Kb LPC: Ligand-Protein Contacts for 7API CSU: Contacts of Structural Units for 7API Likely Quarternary Molecular Structure file(s) for 7API Retrieve 7API in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 7API from S2C, [Save to disk]

View 7API 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 7API

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 7API, from MSDmotif at EBI Genome occurence of 7API's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d7api.1, region A:,B [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: [7api_B] [7api_A] [7api] SWISS-PROT database: [P01009] Domain organization of [A1AT_HUMAN] by SWISSPFAM Domain found in 7API: [SERPIN ] by SMART

Other resources with information on 7API

Community annotation for 7API at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 7API from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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