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| - | [[Image:1yug.jpg|left|200px]] | + | {{Seed}} |
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| | {{STRUCTURE_1yug| PDB=1yug | SCENE= }} | | {{STRUCTURE_1yug| PDB=1yug | SCENE= }} |
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| - | '''TYPE ALPHA TRANSFORMING GROWTH FACTOR, NMR, 15 MODELS AFTER ECEPP/3 ENERGY MINIMIZATION'''
| + | ===TYPE ALPHA TRANSFORMING GROWTH FACTOR, NMR, 15 MODELS AFTER ECEPP/3 ENERGY MINIMIZATION=== |
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| - | ==Overview==
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| - | Human type-alpha transforming growth factor (hTGF alpha) is a small mitogenic protein containing 50 amino acids and 3 disulfide bonds. Homo- and heteronuclear NMR spectra were used to determine nearly complete sequence-specific 1H and 15N resonance assignments for hTGF alpha under three conditions: pH 6.5 and a temperature of 10 degrees C, pH 6.5 and a temperature of 30 degrees C, and pH 3.5 and a temperature of 30 degrees C. The 15N-enriched samples of hTGF alpha allowed determination of many 3J(HN-H alpha) vicinal coupling constants. Solution structures of human type-alpha transforming growth factor (hTGF alpha) at pH 6.5 and a temperature of 10 degrees C were determined from NMR data using molecular structure generation calculations and restrained energy minimization. These structures are based on 425 conformational constraints, including 357 NOE-derived upper-bound distance constraints, constraints on the ranges of 26 dihedral angles based on measurements of vicinal coupling constants, 42 upper- and lower-bound constraints associated with 6 hydrogen bonds and 3 disulfide bonds, and several stereospecific 1H resonance assignments. The overall structure is similar to that described recently for hTGF alpha by other groups [Kline et al. (1990) Biochemistry 29, 7805-7813; Harvey et al. (1991). Eur. J. Biochem. 198, 555-562], but there are differences in some structural details. The resonance frequencies, vicinal coupling constants, and NOEs form the basis for comparisons of the solution structure of hTGF alpha at neutral and acidic pH. At pH 3.5 the protein structure is partially disordered, with most of the hydrogen-bonded backbone structure still intact. The hTGF alpha structure is also compared with that of murine epidermal growth factor. Coordinates for the set of hTGF alpha structures described in this paper have been deposited in the Protein Data Bank.
| + | The line below this paragraph, {{ABSTRACT_PUBMED_8338831}}, adds the Publication Abstract to the page |
| | + | (as it appears on PubMed at http://www.pubmed.gov), where 8338831 is the PubMed ID number. |
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| | + | {{ABSTRACT_PUBMED_8338831}} |
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| | ==About this Structure== | | ==About this Structure== |
| - | 1YUG is a [[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=1YUG OCA]. | + | 1YUG is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YUG OCA]. |
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| | ==Reference== | | ==Reference== |
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| | [[Category: Egf-like domain structure]] | | [[Category: Egf-like domain structure]] |
| | [[Category: Growth factor]] | | [[Category: Growth factor]] |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 16:48:20 2008'' | + | |
| | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 15:09:19 2008'' |
Revision as of 12:09, 29 July 2008
Template:STRUCTURE 1yug
TYPE ALPHA TRANSFORMING GROWTH FACTOR, NMR, 15 MODELS AFTER ECEPP/3 ENERGY MINIMIZATION
Template:ABSTRACT PUBMED 8338831
About this Structure
1YUG is a Single protein structure of sequence from Homo sapiens. Full experimental information is available from OCA.
Reference
Solution structure of human type-alpha transforming growth factor determined by heteronuclear NMR spectroscopy and refined by energy minimization with restraints., Moy FJ, Li YC, Rauenbuehler P, Winkler ME, Scheraga HA, Montelione GT, Biochemistry. 1993 Jul 27;32(29):7334-53. PMID:8338831
Page seeded by OCA on Tue Jul 29 15:09:19 2008
