1XZY - JenaLib

Title :   SOLUTION STRUCTURE OF THE P30-TRANS FORM OF ALPHA HEMOGLOBIN STABILIZING PROTEIN (AHSP)

Authors :   D. A. Gell, L. Feng, S. Zhou, Y. Kong, C. Lee, M. J. Weiss, Y. Shi, J. P. Mackay

Date :   12 Nov 04 (Deposition) - 21 Dec 04 (Release) - 24 Feb 09 (Revision)

Method :   SOLUTION NMR

Resolution :   NOT APPLICABLE

Chains :   NMR Structure  : A  (20x)

Keywords :   Helical Bundle, Three-Helix Bundle, Chaperone (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   L. Feng, D. A. Gell, S. Zhou, L. Gu, Y. Kong, J. Li, M. Hu, N. Yan, C. Lee, A. M. Rich, R. S. Armstrong, P. A. Lay, A. J. Gow, M. J. Weiss, J. P. Mackay, Y. Shi
Molecular Mechanism Of Ahsp-Mediated Stabilization Of Alpha-Hemoglobin
Cell(Cambridge, Mass. ) V. 119 629 2004
PubMed-ID: 15550245 | Reference-DOI: 10.1016/J.CELL.2004.11.025
(for further references see the PDB file header)

Compounds

Molecule 1 - ALPHA-HEMOGLOBIN STABILIZING PROTEIN
	Chains	:	A
	Engineered	:	YES
	Expression System	:	ESCHERICHIA COLI BL21
	Expression System Plasmid	:	PGEX-2T
	Expression System Strain	:	BL21
	Expression System Taxid	:	511693
	Expression System Vector Type	:	PLASMID
	Fragment	:	RESIDUES 1-90
	Gene	:	AHSP
	Organism Common	:	HUMAN
	Organism Scientific	:	HOMO SAPIENS
	Organism Taxid	:	9606
	Synonym	:	AHSP, ERYTHROID ASSOCIATED FACTOR, ERYTHROID DIFFERENTIATION RELATED FACTOR

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (0, 0)

Exons (2, 2)

NMR Structure (2, 2)

	ENSEMBL					UniProtKB			PDB
No.	Transcript ID	Exon	Exon ID	Genome Location	Length	ID	Location	Length	Count	Location	Length
1.1	ENST00000302312	1	ENSE00001171596	chr16:31539185-31539283	99	AHSP_HUMAN	-	0	0	-	-
1.2	ENST00000302312	2	ENSE00001171609	chr16:31539457-31539535	79	AHSP_HUMAN	1-25	25	1	A:1-25	25
1.3	ENST00000302312	3	ENSE00001171603	chr16:31539779-31540124	346	AHSP_HUMAN	26-102	77	1	A:26-90	65

Sequences/Alignments

NMR Structure

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

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Chain A from PDB  Type:PROTEIN  Length:90
 aligned with AHSP_HUMAN | Q9NZD4 from UniProtKB/Swiss-Prot  Length:102

    Alignment length:90
                                    10        20        30        40        50        60        70        80        90
            AHSP_HUMAN    1 MALLKANKDLISAGLKEFSVLLNQQVFNDPLVSEEDMVTVVEDWMNFYINYYRQQVTGEPQERDKALQELRQELNTLANPFLAKYRDFLK 90
               SCOP domains d1xzya_ A: Alpha-hemoglobin stabilizing protein AHSP                                       SCOP domains
               CATH domains ------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ----AHSP-1xzyA01 A:5-90                                                                    Pfam domains
         Sec.struct. author ...hhhhhhhhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------ PROSITE
               Transcript 1 Exon 1.2  PDB: A:1-25    Exon 1.3  PDB: A:26-90 UniProt: 26-102 [INCOMPLETE]               Transcript 1
                  1xzy A  1 MALLKANKDLISAGLKEFSVLLNQQVFNDPLVSEEDMVTVVEDWMNFYINYYRQQVTGEPQERDKALQELRQELNTLANPFLAKYRDFLK 90
                                    10        20        30        40        50        60        70        80        90

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (0, 0)

Pfam Domains (1, 1)

Gene Ontology (10, 10)

NMR Structure(hide GO term definitions)

Chain A (AHSP_HUMAN | Q9NZD4)

molecular function
	GO:0030492	hemoglobin binding	Interacting selectively and non-covalently with hemoglobin, an oxygen carrying, conjugated protein containing four heme groups and globin.
	GO:0005515	protein binding	Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
	GO:0051082	unfolded protein binding	Interacting selectively and non-covalently with an unfolded protein.
biological process
	GO:0030218	erythrocyte differentiation	The process in which a myeloid precursor cell acquires specializes features of an erythrocyte.
	GO:0020027	hemoglobin metabolic process	The chemical reactions and pathways involving hemoglobin, including its uptake and utilization.
	GO:0030097	hemopoiesis	The process whose specific outcome is the progression of the myeloid and lymphoid derived organ/tissue systems of the blood and other parts of the body over time, from formation to the mature structure. The site of hemopoiesis is variable during development, but occurs primarily in bone marrow or kidney in many adult vertebrates.
	GO:0006457	protein folding	The process of assisting in the covalent and noncovalent assembly of single chain polypeptides or multisubunit complexes into the correct tertiary structure.
	GO:0050821	protein stabilization	Any process involved in maintaining the structure and integrity of a protein and preventing it from degradation or aggregation.
cellular component
	GO:0005737	cytoplasm	All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
	GO:0005833	hemoglobin complex	An iron-containing, oxygen carrying complex. In vertebrates it is made up of two pairs of associated globin polypeptide chains, each chain carrying a noncovalently bound heme prosthetic group.

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