2P9R	Signaling Protein	date	Mar 26, 2007
title	Human Alpha2-Macroglogulin Is Composed Of Multiple Domains, As Predicted By Homology With Complement Component C3
authors	N.Doan
compound		source
Molecule: Alpha-2-Macroglobulin Chain: A, B Synonym: Alpha-2-M Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: A2m Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Sg13009 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pqe30
symmetry	Space Group: P 43 21 2	R_factor 0.244 R_Free 0.281
crystal cell	length a length b length c angle alpha angle beta angle gamma 68.810 68.810 120.070 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.30 Å
note	2P9R is a representative structure
Genes	A2M, FWP007 (H. sapiens)
Gene Ontology	Chain Function Process Component A, B endopeptidase inhibitor acti... serine-type endopeptidase in... protein binding growth factor binding enzyme binding interleukin-8 binding interleukin-1 binding peptidase inhibitor activity... tumor necrosis factor bindin... negative regulation of compl... acute-phase response response to nutrient response to carbon dioxide response to glucocorticoid s... extracellular region extracellular space platelet alpha granule lumen...
Disease	Emphysema due to alpha-2-macroglobulin deficiency OMIM:103950 Alzheimer disease, susceptibility to OMIM:103950
Primary reference	Human alpha 2-macroglobulin is composed of multiple domains, as predicted by homology with complement component C3., Doan N, Gettins PG, Biochem J. 2007 Jul 4;. PMID:17608619

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (38 Kb) [Save to disk] Biological Unit Coordinates (2p9r.pdb1.gz) 18 Kb Biological Unit Coordinates (2p9r.pdb2.gz) 17 Kb CSU: Contacts of Structural Units for 2P9R Likely Quarternary Molecular Structure file(s) for 2P9R Structure Factors (96 Kb) Retrieve 2P9R in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2P9R from S2C, [Save to disk]

View 2P9R 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 2P9R

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 2P9R, from MSDmotif at EBI Fold representative 2p9r from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2p9r_B] [2p9r] [2p9r_A] SWISS-PROT database: [P01023] Domain organization of [A2MG_HUMAN] by SWISSPFAM Alignments of the sequence of 2P9R with the sequences similar proteins can be viewed for 2P9R's classification [A2MG_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 [A2MG_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 2P9R

Community annotation for 2P9R at PDBWiki (http://pdbwiki.org) PDBREPORT (protein verification by WHAT_CHECK procedures) MMDB (Entrez's Structure Database)

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