Linked Life Data

18814948

Source:http://linkedlifedata.com/resource/pubmed/id/18814948

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2008-10-20
pubmed:databankReference
pubmed:abstractText
We have determined the sequence of mitochondrial cytochrome c (cyt-c) from the goat heart, and it was found to have a unique amino acid sequence among all amino acid sequences of cyt-c reported till date. Its sequence alignment with the bovine cytochrome c (b-cyt-c) led us to conclude that the goat cytochrome c (g-cyt-c) differs in amino acid sequence from b-cyt-c at only one position, i.e., Pro44(bovine) --> Ala44(goat). It has been observed that guanidinium chloride (GdmCl) induces a two-state transition between the native (N) and denatured (D) states of g-cyt-c. This conclusion is reached from the coincidence of GdmCl-induced transition curves monitored by measurements of absorbance at 405, 530 and 695 nm and circular dichroism (CD) at 222, 416 and 405 nm. Analysis of denaturation curves for the Gibbs energy of stabilization suggests that the stability of g-cyt-c is, within experimental errors, identical to that of b-cyt-c. We have also measured the effect of temperature on the equilibrium, N state <--> D state of g-cyt-c in the presence of different GdmCl concentrations. These measurements gave values of transition temperature (T(m)), changes in enthalpy (DeltaH(m)) and heat capacity (DeltaC(p)) of g-cyt-c in the absence of GdmCl, which are compared with those of b-cyt-c. We have used crystal structure coordinates of b-cyt-c to predict the structure and stability of g-cyt-c, which are compared with those of the bovine protein.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1873-4200
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
138
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
23-8
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Sequence and stability of the goat cytochrome c.
pubmed:affiliation
Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't