3CWM	Protease Inhibitor	date	Apr 22, 2008
title	Crystal Structure Of Alpha-1-Antitrypsin Complexed With Citr
authors	C.J.Morton, G.Hansen, S.C.Feil, J.J.Adams, M.W.Parker
compound		source
Molecule: Alpha-1-Antitrypsin Chain: A Synonym: Alpha-1 Protease Inhibitor, Alpha-1- Antiproteinas Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Serpina1, Aat, Pi Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.217 R_Free 0.271
crystal cell	length a length b length c angle alpha angle beta angle gamma 39.183 52.539 207.533 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.51 Å
ligand	CIT, CSD	enzyme
Gene Ontology	Chain Function Process Component A protease binding serine-type endopeptidase in... protein binding peptidase inhibitor activity... platelet degranulation acute-phase response blood coagulation hemostasis negative regulation of pepti... negative regulation of endop... regulation of proteolysis platelet activation extracellular region proteinaceous extracellular ... extracellular space platelet alpha granule lumen...
Primary reference	Preventing Serpin Aggregation: The Molecular Mechanism of Citrate Action upon Antitrypsin Unfolding., Pearce MC, Morton C, Feil SC, Hansen G, Adams JJ, Parker MW, Bottomley SP, Protein Sci. 2008 Sep 9. PMID:18780818

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (67 Kb) [Save to disk] Biological Unit Coordinates (3cwm.pdb1.gz) 62 Kb LPC: Ligand-Protein Contacts for 3CWM CSU: Contacts of Structural Units for 3CWM Likely Quarternary Molecular Structure file(s) for 3CWM Structure Factors (232 Kb) Retrieve 3CWM in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3CWM from S2C, [Save to disk] Re-refined 3cwm structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3CWM 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. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 3CWM

Cartoon representation from PDB Cartoon 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 Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 3CWM, from MSDmotif at EBI Fold representative 3cwm from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3cwm_] [3cwm_A] SWISS-PROT database: [P01009] Domain organization of [A1AT_HUMAN] by SWISSPFAM Domain found in 3CWM: [SERPIN ] by SMART Alignments of the sequence of 3CWM with the sequences similar proteins can be viewed for 3CWM's classification [A1AT_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [A1AT_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 3CWM

Community annotation for 3CWM at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2010 Bioinformatics Unit Weizmann Institute of Science

---