Linked Life Data

1534952

Source:http://linkedlifedata.com/resource/pubmed/id/1534952

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-7-16
pubmed:abstractText
Bacteriophage lambda terminase is a multifunctional enzyme composed of two subunits which are the products of the phage-encoded Nu1 and A genes. The enzyme catalyzes the endonucleolytic cleavage of lambda DNA at a site known as cosN and mediates packaging of the phage DNA into empty heads. This work describes the characterization of mutations within the A gene which lead to the loss of terminase endonuclease activity without affecting the ability of the enzyme to package monomeric mature (cut) lambda DNA. The residues changed by these mutations lie in two distinct regions within the carboxy half of the A protein. One of these regions has sequence homology with a conserved region of DNA polymerases. The other region resembles the "leucine zipper" DNA binding domain (bZIP) found in eukaryotic transcription factors in that both a basic region and leucine heptad-repeat are present. This terminase domain may be involved in the recognition and/or cleavage of cosN.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:volume
189
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
21-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Mutations abolishing the endonuclease activity of bacteriophage lambda terminase lie in two distinct regions of the A gene, one of which may encode a "leucine zipper" DNA-binding domain.
pubmed:affiliation
Department of Molecular and Medical Genetics, University of Toronto, Ontario, Canada.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't