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2bn2
From Proteopedia
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[[Image:2bn2.gif|left|200px]] | [[Image:2bn2.gif|left|200px]] | ||
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'''CRYSTAL STRUCTURE OF BOVINE NEUROPHYSIN II COMPLEXED WITH THE VASOPRESSIN ANALOGUE PHE-TYR AMIDE''' | '''CRYSTAL STRUCTURE OF BOVINE NEUROPHYSIN II COMPLEXED WITH THE VASOPRESSIN ANALOGUE PHE-TYR AMIDE''' | ||
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==About this Structure== | ==About this Structure== | ||
| - | 2BN2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. This structure supersedes the now removed PDB entry | + | 2BN2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1bn2 1bn2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BN2 OCA]. |
==Reference== | ==Reference== | ||
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[[Category: Rose, J P.]] | [[Category: Rose, J P.]] | ||
[[Category: Wang, B C.]] | [[Category: Wang, B C.]] | ||
| - | [[Category: | + | [[Category: Hormone packaging]] |
| - | + | [[Category: Transport]] | |
| - | [[Category: | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Apr 30 13:56:56 2008'' |
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| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 10:56, 30 April 2008
CRYSTAL STRUCTURE OF BOVINE NEUROPHYSIN II COMPLEXED WITH THE VASOPRESSIN ANALOGUE PHE-TYR AMIDE
Overview
The crystal structure of a dipeptide complex of bovine neurophysin II has been solved at 2.8 A resolution solely by using single-wavelength anomalous scattering data from a single iodinated derivative. The asymmetric unit is an elongated tetramer of dimensions 110 x 40 x 30 A, composed of two dimers related by pseudo twofold symmetry. Each monomer consists of two homologous layers, each with four antiparallel beta-strands. The two regions are connected by a helix followed by a long loop. Monomer-monomer contacts involve antiparallel beta-sheet interactions, which form a dimer with two layers of eight beta-strands. One peptide per monomer occupies the principal hormone-binding pocket formed by part of the amino-terminal region and parts of the connecting helix and loop, with binding to protein consistent with conclusions drawn from solution studies. Dimer-dimer contacts involve the Tyr49 region adjacent to this site. A fifth dipeptide, of unknown biological significance, helps to stabilize one of the monomer-monomer interfaces and the tetramer-tetramer network in the crystal.
About this Structure
2BN2 is a Single protein structure of sequence from Bos taurus. This structure supersedes the now removed PDB entry 1bn2. Full crystallographic information is available from OCA.
Reference
Crystal structure of a bovine neurophysin II dipeptide complex at 2.8 A determined from the single-wavelength anomalous scattering signal of an incorporated iodine atom., Chen LQ, Rose JP, Breslow E, Yang D, Chang WR, Furey WF Jr, Sax M, Wang BC, Proc Natl Acad Sci U S A. 1991 May 15;88(10):4240-4. PMID:2034668 Page seeded by OCA on Wed Apr 30 13:56:56 2008
