9API	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 Molecule: Alpha 1-Antitrypsin Chain: B Engineered: Yes
symmetry	Space Group: P 43 21 2	R_factor 0.209 R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 119.300 119.300 104.300 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	CYS, MAN, NAG	enzyme
related structures	by homologous chain: 1D5S
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] (65 Kb) [Save to disk] Biological Unit Coordinates (9api.pdb1.gz) 61 Kb LPC: Ligand-Protein Contacts for 9API CSU: Contacts of Structural Units for 9API Likely Quarternary Molecular Structure file(s) for 9API Retrieve 9API in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 9API from S2C, [Save to disk]

View 9API 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 9API

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 9API, from MSDmotif at EBI Genome occurence of 9API's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d9api.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: [9api_B] [9api_A] [9api] SWISS-PROT database: [P01009] Domain organization of [A1AT_HUMAN] by SWISSPFAM Domain found in 9API: [SERPIN ] by SMART

Other resources with information on 9API

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

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

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