3IA3	Oxygen Transport	date	Jul 13, 2009
title	A Cis-Proline In Alpha-Hemoglobin Stabilizing Protein Direct Structural Reorganization Of Alpha-Hemoglobin
authors	L.Feng, P.D.Jeffrey, Y.Shi
compound		source
Molecule: Alpha-Hemoglobin-Stabilizing Protein Chain: A, C Synonym: Erythroid-Associated Factor, Erythroid Differentia Related Factor; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ahsp, Edrf, Eraf Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Hemoglobin Subunit Alpha Chain: B, D Synonym: Hemoglobin Alpha Chain, Alpha-Globin Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hba1, Hba2 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 61 2 2	R_factor 0.230 R_Free 0.293
crystal cell	length a length b length c angle alpha angle beta angle gamma 65.230 65.230 439.660 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	3.20 Å
ligand	HEM	enzyme
Gene Ontology	Chain Function Process Component A, C D, B peroxidase activity
Primary reference	A cis-proline in alpha-hemoglobin stabilizing protein directs the structural reorganization of alpha-hemoglobin., Gell DA, Feng L, Zhou S, Jeffrey PD, Bendak K, Gow A, Weiss MJ, Shi Y, Mackay JP, J Biol Chem. 2009 Oct 23;284(43):29462-9. Epub 2009 Aug 25. PMID:19706593

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (79 Kb) [Save to disk] Biological Unit Coordinates (3ia3.pdb1.gz) 37 Kb Biological Unit Coordinates (3ia3.pdb2.gz) 38 Kb LPC: Ligand-Protein Contacts for 3IA3 CSU: Contacts of Structural Units for 3IA3 Likely Quarternary Molecular Structure file(s) for 3IA3 Structure Factors (65 Kb) Retrieve 3IA3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3IA3 from S2C, [Save to disk] Re-refined 3ia3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3IA3 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 3IA3

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 3IA3, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1k3ia3, region A:151-537 [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ia3_A] [3ia3] [3ia3_B] [3ia3_C] [3ia3_D] SWISS-PROT database: [Q9NZD4] [P69905] Belongs to the pore-forming globin (globin) family according to TCDB. Domain organization of [AHSP_HUMAN] [HBA_HUMAN] by SWISSPFAM

Other resources with information on 3IA3

Community annotation for 3IA3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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