2gmf

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{{STRUCTURE_2gmf| PDB=2gmf | SCENE= }}
{{STRUCTURE_2gmf| PDB=2gmf | SCENE= }}
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'''HUMAN GRANULOCYTE MACROPHAGE COLONY STIMULATING FACTOR'''
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===HUMAN GRANULOCYTE MACROPHAGE COLONY STIMULATING FACTOR===
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==Overview==
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The crystal structure of recombinant human granulocyte-macrophage colony stimulating factor (rhGM-CSF) has been refined against data extending to a resolution of approximately 2.4 A along a* and approximately 1.9 A along b* and c*. Anisotropic scale factors of B11 = -20.8 A2, B22 = 7.4 A2, B33 = 13.3 A2 corrected for the more rapid fall of diffraction in the a* direction. The anisotropy correlates with the weak crystal packing interactions along the a axis. In addition to apolar side chains in the protein core, there are 10 buried hydrogen bonding residues. Those residues involved in intramolecular hydrogen bonding to main chain atoms are better conserved than those hydrogen bonding to other side chain atoms; 24 solvation sites are observed at equivalent positions in the two molecules in the asymmetric unit, and the strongest among these are located in clefts between secondary structural elements. No buried water sites are seen. Two surface clusters of hydrophobic side chains are located near the expected receptor binding regions. Mutagenesis of 11 residues on the helix A/helix C face confirms the importance of Glu-21 and shows that Gly-75 and Gln-86, located on helix C, each cause a greater than fourfold drop in activity. Glu-21 and Gly-75, but not Gln-86, are structurally equivalent to residues involved in the growth hormone binding to its receptor.
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{{ABSTRACT_PUBMED_8953651}}
==About this Structure==
==About this Structure==
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[[Category: Rozwarski, D.]]
[[Category: Rozwarski, D.]]
[[Category: Granulocyte-macrophage colony stimulating growth factor]]
[[Category: Granulocyte-macrophage colony stimulating growth factor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 05:43:36 2008''

Revision as of 02:43, 29 July 2008

Image:2gmf.png

Template:STRUCTURE 2gmf

HUMAN GRANULOCYTE MACROPHAGE COLONY STIMULATING FACTOR

Template:ABSTRACT PUBMED 8953651

About this Structure

2GMF is a Single protein structure of sequence from Homo sapiens. This structure supersedes the now removed PDB entry 1gmf. Full crystallographic information is available from OCA.

Reference

Refined crystal structure and mutagenesis of human granulocyte-macrophage colony-stimulating factor., Rozwarski DA, Diederichs K, Hecht R, Boone T, Karplus PA, Proteins. 1996 Nov;26(3):304-13. PMID:8953651

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