1bm0
From Proteopedia
(New page: 200px<br /> <applet load="1bm0" size="450" color="white" frame="true" align="right" spinBox="true" caption="1bm0, resolution 2.50Å" /> '''CRYSTAL STRUCTURE O...) |
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| - | [[Image:1bm0.gif|left|200px]]<br /> | + | [[Image:1bm0.gif|left|200px]]<br /><applet load="1bm0" size="350" color="white" frame="true" align="right" spinBox="true" |
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caption="1bm0, resolution 2.50Å" /> | caption="1bm0, resolution 2.50Å" /> | ||
'''CRYSTAL STRUCTURE OF HUMAN SERUM ALBUMIN'''<br /> | '''CRYSTAL STRUCTURE OF HUMAN SERUM ALBUMIN'''<br /> | ||
==Overview== | ==Overview== | ||
| - | A new triclinic crystal form of human serum albumin (HSA), derived either | + | A new triclinic crystal form of human serum albumin (HSA), derived either from pool plasma (pHSA) or from a Pichia pastoris expression system (rHSA), was obtained from polyethylene glycol 4000 solution. Three-dimensional structures of pHSA and rHSA were determined at 2.5 A resolution from the new triclinic crystal form by molecular replacement, using atomic coordinates derived from a multiple isomorphous replacement work with a known tetragonal crystal form. The structures of pHSA and rHSA are virtually identical, with an r.m. s. deviation of 0.24 A for all Calpha atoms. The two HSA molecules involved in the asymmetric unit are related by a strict local twofold symmetry such that the Calpha atoms of the two molecules can be superimposed with an r.m.s. deviation of 0.28 A in pHSA. Cys34 is the only cysteine with a free sulfhydryl group which does not participate in a disulfide linkage with any external ligand. Domains II and III both have a pocket formed mostly of hydrophobic and positively charged residues and in which a very wide range of compounds may be accommodated. Three tentative binding sites for long-chain fatty acids, each with different surroundings, are located at the surface of each domain. |
==Disease== | ==Disease== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1BM0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http:// | + | 1BM0 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BM0 OCA]. |
==Reference== | ==Reference== | ||
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[[Category: carrier protein]] | [[Category: carrier protein]] | ||
| - | ''Page seeded by [http:// | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 11:56:40 2008'' |
Revision as of 09:56, 21 February 2008
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CRYSTAL STRUCTURE OF HUMAN SERUM ALBUMIN
Contents |
Overview
A new triclinic crystal form of human serum albumin (HSA), derived either from pool plasma (pHSA) or from a Pichia pastoris expression system (rHSA), was obtained from polyethylene glycol 4000 solution. Three-dimensional structures of pHSA and rHSA were determined at 2.5 A resolution from the new triclinic crystal form by molecular replacement, using atomic coordinates derived from a multiple isomorphous replacement work with a known tetragonal crystal form. The structures of pHSA and rHSA are virtually identical, with an r.m. s. deviation of 0.24 A for all Calpha atoms. The two HSA molecules involved in the asymmetric unit are related by a strict local twofold symmetry such that the Calpha atoms of the two molecules can be superimposed with an r.m.s. deviation of 0.28 A in pHSA. Cys34 is the only cysteine with a free sulfhydryl group which does not participate in a disulfide linkage with any external ligand. Domains II and III both have a pocket formed mostly of hydrophobic and positively charged residues and in which a very wide range of compounds may be accommodated. Three tentative binding sites for long-chain fatty acids, each with different surroundings, are located at the surface of each domain.
Disease
Known diseases associated with this structure: Analbuminemia OMIM:[103600], Dysalbuminemic hyperthyroxinemia OMIM:[103600], Dysalbuminemic hyperzincemia OMIM:[103600]
About this Structure
1BM0 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of human serum albumin at 2.5 A resolution., Sugio S, Kashima A, Mochizuki S, Noda M, Kobayashi K, Protein Eng. 1999 Jun;12(6):439-46. PMID:10388840
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