Linked Life Data

12576282

Source:http://linkedlifedata.com/resource/pubmed/id/12576282

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3-4
pubmed:dateCreated
2003-2-10
pubmed:abstractText
Cooperativity between pepsin and crystallization of calcium carbonate in distilled water was studied. The results show that vaterite was formed under the influence of pepsin and the crystalline product was a composite of vaterite and pepsin. The component of this material was similar to that of nacre. At the same time, the crystallization of calcium carbonate had also an important effect on the secondary structure of the pepsin. The secondary structure of the pepsin was characterized through FT-IR technology. The result indicated that the pure pepsin is composed of 24.38% alpha-helices, 29.91% beta-sheets, 39.32% beta-turns and 6.49% random structures and the pepsin in the CaCO(3)-pepsin solution is composed of 2.09% alpha-helices, 93.304% beta-sheets, 4.592% beta-turns and 0.006% random structure. During the crystallization of the calcium carbonate from the pepsin solution, the secondary structure of the pepsin transformed. These results showed that there was cooperativity between the crystallization of vaterite and the pepsin. The cooperative mechanism is discussed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0162-0134
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
197-203
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Cooperativity between pepsin and crystallization of calcium carbonate in distilled water.
pubmed:affiliation
College of Chemistry and Environmental Science, Henan Normal University, Xinxiang 453002, PR China. lingdingdang@yahoo.com
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't