Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1975-10-3
pubmed:abstractText
Circular dichroism (CD) methods were employed to study the conformation of Z protein and characterize its complexes with bilirubin and other organic anions. Z protein-bilirubin complexes exhibited a spectrum with overlapping ellipticity bands of opposite sign in the bilirubin absorption region. These results were compared with those obtained with ligandin, the other major organic anion binding protein of liver. Secondary structural differences between the two proteins were easily demonstrated since ligandin is predominantly an alpha-helical protein and Z features mainly beta-structure. Furthermore, the optical activity pattern generated by bilirubin binding to Z was virtually a mirror image of that of the ligandin bilirubin system. CD experiments were designed to study the direct transfer of bilirubin between Z protein and ligandin, and it was shown that both proteins have almost equal affinities for bilirubin. The bilirubin on Z was readily displaced by oleic acid and displaced to a lesser extent by sulfobromophthalein,
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
393
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
24-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Circular dichroism analysis of the secondary structure of Z protein and its complexes with bilirubin and other organic anions.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.