Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
|
pubmed:dateCreated |
1978-5-17
|
pubmed:abstractText |
gp32 I is a protein with a molecular weight of 27 000. It is obtained by limited hydrolysis of T4 gene 32 coded protein, which is one of the DNA melting proteins. gp32 I itself appears to be also a melting protein. It denatures poly[d(A-T)].poly[d(A-T)] and T4 DNA at temperatures far (50-60 degrees C) below their regular melting temperatures. Under similar conditions gp32 I will denature poly[d(A-T).poly[d(A-T)] at temperatures approximately 12 degrees C lower than those measured for the intact gp32 denaturation. For T4 DNA gp32 shows no melting behavior while gp32 I shows considerable denaturation (i.e., hyperchromicity) even at 1 degree C. In this paper the denaturation of poly[d(A-T)].poly[d(A-T)] and T4 DNA by gp32 I is studied by means of circular dichroism. It appears that gp32 I forms a complex with poly[d(A-T)]. The conformation of the polynucleotide in the complex is equal to that of one strand of the double-stranded polymer in 6 M LiCl. In the gp32 I DNA complex formed upon denaturation of T4 DNA, the single-stranded DNA molecule has the same conformation as one strand of the double-strand T4 DNA molecule in the C-DNA conformation.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Single-Stranded,
http://linkedlifedata.com/resource/pubmed/chemical/DNA, Viral,
http://linkedlifedata.com/resource/pubmed/chemical/DNA Helicases,
http://linkedlifedata.com/resource/pubmed/chemical/Peptide Fragments,
http://linkedlifedata.com/resource/pubmed/chemical/Poly dA-dT,
http://linkedlifedata.com/resource/pubmed/chemical/Polydeoxyribonucleotides,
http://linkedlifedata.com/resource/pubmed/chemical/Viral Proteins
|
pubmed:status |
MEDLINE
|
pubmed:month |
Mar
|
pubmed:issn |
0006-2960
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
7
|
pubmed:volume |
17
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
893-8
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:204332-Circular Dichroism,
pubmed-meshheading:204332-DNA, Single-Stranded,
pubmed-meshheading:204332-DNA, Viral,
pubmed-meshheading:204332-DNA Helicases,
pubmed-meshheading:204332-Genes, Viral,
pubmed-meshheading:204332-Nucleic Acid Conformation,
pubmed-meshheading:204332-Nucleic Acid Denaturation,
pubmed-meshheading:204332-Peptide Fragments,
pubmed-meshheading:204332-Poly dA-dT,
pubmed-meshheading:204332-Polydeoxyribonucleotides,
pubmed-meshheading:204332-Structure-Activity Relationship,
pubmed-meshheading:204332-Viral Proteins
|
pubmed:year |
1978
|
pubmed:articleTitle |
Circular dichroism studies of the interaction of a limited hydrolysate of T4 gene 32 protein with T4 DNA and poly[d(A-T)].poly[d(A-T)].
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
|