1Y01	Oxygen Storage Transport	date	Nov 14, 2004
title	Crystal Structure Of Ahsp Bound To Fe(II) Alpha-Hemoglobin
authors	L.Feng, D.A.Gell, S.Zhou, L.Gu, A.J.Gow, M.J.Weiss, J.P.Mackay, Y.S
compound		source
Molecule: Alpha-Hemoglobin Stabilizing Protein Chain: A Synonym: Erythroid Associated Factor, Erythroid Differentia Related Factor, Ahsp; Engineered: Yes Mutation: 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 Alpha Chain Chain: B Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hba1 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 41 21 2	R_factor 0.273 R_Free 0.292
crystal cell	length a length b length c angle alpha angle beta angle gamma 69.630 69.630 140.466 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	CHK, HEM, OXY	enzyme
related structures	by homologous chain: 1A9W, 1LFV, 1W09, 1Z8U
Gene Ontology	Chain Function Process Component A B peroxidase activity
Primary reference	Molecular mechanism of AHSP-mediated stabilization of alpha-hemoglobin., Feng L, Gell DA, Zhou S, Gu L, Kong Y, Li J, Hu M, Yan N, Lee C, Rich AM, Armstrong RS, Lay PA, Gow AJ, Weiss MJ, Mackay JP, Shi Y, Cell 2004 Nov 24;119(5):629-40. PMID:15550245

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (42 Kb) [Save to disk] Biological Unit Coordinates (1y01.pdb1.gz) 36 Kb LPC: Ligand-Protein Contacts for 1Y01 CSU: Contacts of Structural Units for 1Y01 Likely Quarternary Molecular Structure file(s) for 1Y01 Retrieve 1Y01 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Y01 from S2C, [Save to disk]

View 1Y01 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 1Y01

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1Y01, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1y01a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1y01b_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1y01_B] [1y01] [1y01_A] 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 1Y01

Community annotation for 1Y01 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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