1pcn: Difference between revisions

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[[Image:1pcn.gif|left|200px]]
{{Seed}}
[[Image:1pcn.png|left|200px]]


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{{STRUCTURE_1pcn|  PDB=1pcn  |  SCENE=  }}  
{{STRUCTURE_1pcn|  PDB=1pcn  |  SCENE=  }}  


'''SOLUTION STRUCTURE OF PORCINE PANCREATIC PROCOLIPASE AS DETERMINED FROM 1H HOMONUCLEAR TWO-AND THREE-DIMENSIONAL NMR'''
===SOLUTION STRUCTURE OF PORCINE PANCREATIC PROCOLIPASE AS DETERMINED FROM 1H HOMONUCLEAR TWO-AND THREE-DIMENSIONAL NMR===




==Overview==
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Procolipase is the precursor of colipase, which acts as protein cofactor for the activity of pancreatic lipase. The solution structure of procolipase has been determined by 1H NMR using two- and three-dimensional measurements. The secondary structure determination identified two separate three-stranded beta-sheet regions with concomitant hydrogen bond patterns. The tertiary structure of the protein was determined using 863 non-trivial proton--proton distance constraints, 14 hydrogen bond distance constraints and 55 phi and 25 X1 dihedral constraints. The structure that was obtained from distance geometry and energy refinement contains three highly disordered loops as well as a disordered N- and C-terminal region. The remaining part of the structure is well defined with a root-mean-square deviation (rmsd) relative to the average of 0.09 +/- 0.02 nm for backbone atoms (residues 11-30, 37-50, 57-69, 83-89). The protein comprises two identical domains, each containing a three-strand beta-sheet and two disulfide bonds: a 15-residue region in each domain superimposes with 0.07 nm rmsd, measured on backbone atoms. The solution structure is nearly identical to the crystal structure. It is in agreement with previous NMR data and, in combination with these data, supports the current model of procolipase micelle interaction and the lipase activation by colipase.
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{{ABSTRACT_PUBMED_7867624}}


==About this Structure==
==About this Structure==
1PCN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PCN OCA].  
1PCN is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PCN OCA].  


==Reference==
==Reference==
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[[Category: Sarda, L.]]
[[Category: Sarda, L.]]
[[Category: Lipase protein cofactor]]
[[Category: Lipase protein cofactor]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 04:56:33 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 13:08:56 2008''

Revision as of 10:08, 28 July 2008

File:1pcn.png

Template:STRUCTURE 1pcn

SOLUTION STRUCTURE OF PORCINE PANCREATIC PROCOLIPASE AS DETERMINED FROM 1H HOMONUCLEAR TWO-AND THREE-DIMENSIONAL NMR

Template:ABSTRACT PUBMED 7867624

About this Structure

1PCN is a Single protein structure of sequence from Sus scrofa. Full experimental information is available from OCA.

Reference

Solution structure of porcine pancreatic procolipase as determined from 1H homonuclear two-dimensional and three-dimensional NMR., Breg JN, Sarda L, Cozzone PJ, Rugani N, Boelens R, Kaptein R, Eur J Biochem. 1995 Feb 1;227(3):663-72. PMID:7867624

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