2pgh

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{{STRUCTURE_2pgh| PDB=2pgh | SCENE= }}
{{STRUCTURE_2pgh| PDB=2pgh | SCENE= }}
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'''STRUCTURE DETERMINATION OF AQUOMET PORCINE HEMOGLOBIN AT 2.8 ANGSTROM RESOLUTION'''
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===STRUCTURE DETERMINATION OF AQUOMET PORCINE HEMOGLOBIN AT 2.8 ANGSTROM RESOLUTION===
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==Overview==
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Considerable attention is currently focused on hemoglobins from lower mammals, such as the pig, for potential use in cell-free blood substitute preparations safe for use in humans. As the first step in the elucidation of structure-function relationships in porcine hemoglobin, we have determined the three-dimensional structure of aquomet porcine hemoglobin at 2.8 A resolution. Overall, the porcine hemoglobin tetramer is structurally similar to that of human oxyhemoglobin, and the r.m.s. deviation of all backbone atoms (minus five residues at the amino and carboxyl termini of each subunit) is 0.8 A. This similarity is not unexpected given that human and porcine hemoglobins exhibit 85% sequence identity. However, regions of subtle structural differences are implicated in subtle functional differences between the two proteins, such as the 20 to 25% inhibition of the alkaline Bohr effect and the accompanying reduction in oxygen-linked chloride binding observed for porcine hemoglobin. The structural similarity of these two mammalian hemoglobins also rationalizes the novel hybridization behavior of pig and human subunits in transgenic pigs expressing both porcine and human hemoglobins in porcine erythrocytes.
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{{ABSTRACT_PUBMED_7990139}}
==About this Structure==
==About this Structure==
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[[Category: White, S P.]]
[[Category: White, S P.]]
[[Category: Oxygen transport]]
[[Category: Oxygen transport]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 13:03:54 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 15:01:52 2008''

Revision as of 12:01, 27 July 2008

Image:2pgh.png

Template:STRUCTURE 2pgh

STRUCTURE DETERMINATION OF AQUOMET PORCINE HEMOGLOBIN AT 2.8 ANGSTROM RESOLUTION

Template:ABSTRACT PUBMED 7990139

About this Structure

2PGH is a Protein complex structure of sequences from Sus scrofa. This structure supersedes the now removed PDB entry 1pgh. Full crystallographic information is available from OCA.

Reference

Structure determination of aquomet porcine hemoglobin at 2.8 A resolution., Katz DS, White SP, Huang W, Kumar R, Christianson DW, J Mol Biol. 1994 Dec 16;244(5):541-53. PMID:7990139

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