G
Geoffrey W. Grigg
Researcher at Commonwealth Scientific and Industrial Research Organisation
Publications - 30
Citations - 3788
Geoffrey W. Grigg is an academic researcher from Commonwealth Scientific and Industrial Research Organisation. The author has contributed to research in topics: DNA & genomic DNA. The author has an hindex of 12, co-authored 30 publications receiving 3619 citations. Previous affiliations of Geoffrey W. Grigg include Royal Prince Alfred Hospital.
Papers
More filters
Journal ArticleDOI
A genomic sequencing protocol that yields a positive display of 5-methylcytosine residues in individual DNA strands.
Marianne Frommer,Louise E. McDonald,Douglas Spencer Millar,Christina M. Collis,Fujiko Watt,Geoffrey W. Grigg,Peter L. Molloy,Cheryl L. Paul +7 more
TL;DR: A genomic sequencing method is reported that provides positive identification of 5-methylcytosine residues and yields strand-specific sequences of individual molecules in genomic DNA, which suggests that the high methylation level of single-copy sequences in sperm may be locally modulated by binding of protein factors in germ-line cells.
Journal ArticleDOI
Urea improves efficiency of bisulphite-mediated sequencing of 5′-methylcytosine in genomic DNA
TL;DR: A simple improvement to the method involving addition of urea to the bisulphite reaction is reported, a step which greatly improves the reaction efficiency, presumably by maintaining the target DNA in single stranded form, thereby allowing complete and reliable conversion.
Journal ArticleDOI
Sequencing 5-methylcytosine residues in genomic DNA.
Geoffrey W. Grigg,Susan J. Clark +1 more
TL;DR: The most commonly used methods for studying the methylation profile of DNA, including the bisulphite base-conversion method, are reviewed.
Journal ArticleDOI
Breakage of double-stranded DNA due to single-stranded nicking.
TL;DR: A mathematical model for the breakage of circular, supercoiled DNA under the action of an enzyme which nicks at random sites (or at preferred sites, these being in abundance and randomly positioned around the circle).
Patent
Detection of methylated dna molecules
TL;DR: In this paper, a method for detecting presence of a target DNA in a sample was proposed, which consists of treating a sample containing DNA with an agent that modifies unmethylated cytosine, and providing to the treated sample a detector ligand capable of binding to a target region of DNA and allowing sufficient time for a ligand to bind to the target DNA.