Source:http://linkedlifedata.com/resource/pubmed/id/19431310
Switch to
| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
6
|
| pubmed:dateCreated |
2009-7-29
|
| pubmed:abstractText |
Previous data as well as new results are examined with a view to determining the boundary conditions which present experimental information places on a satisfactory polypeptide chain model for the structure of feather keratin. Our studies indicate these conditions to include the following: (1) A 189 A identity period, with a pseudoidentity of 94.5 A; (2) characteristic fiber axis periodicities of 23.6(4), A and 18.9 A; (3) a meridian reflection of 2.96 A, but none in the 1.0 A region; (4) a strong, but sensitive, equatorial reflection of about 33 A spacing, with a possible equatorial reflection near 50 A; (5) perpendicular infrared dichroism of v (NH) of at least 5:1; (6) a limited extensibility along the fiber axis direction; (7) the natural accommodation of about 12 per cent of proline residues in the structure; (8) the possibility of breaking down the structure into units of about 10,000 molecular weight. The implications of these conditions with respect to a satisfactory model are considered.
|
| pubmed:commentsCorrections |
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-13025480,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-13072523,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-13159956,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-13265783,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-13272717,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-13355852,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-13493511,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-14819889,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-14834147,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-14843172,
http://linkedlifedata.com/resource/pubmed/commentcorrection/19431310-16578412
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Jul
|
| pubmed:issn |
0006-3495
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:volume |
1
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
467-87
|
| pubmed:dateRevised |
2009-11-18
|
| pubmed:year |
1961
|
| pubmed:articleTitle |
Studies on the Structure of Feather Keratin: I. X-Ray Diffraction Studies and Other Experimental Data.
|
| pubmed:publicationType |
Journal Article
|