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Title: Methods for detection of methyl-CpG dinucleotides

Patent ·
OSTI ID:1078331

The invention provides methods for enriching methyl-CpG sequences from a DNA sample. The method makes use of conversion of cytosine residues to uracil under conditions in which methyl-cytosine residues are preserved. Additional methods of the invention enable to preservation of the context of me-CpG dinucleotides. The invention also provides a recombinant, full length and substantially pure McrA protein (rMcrA) for binding and isolation of DNA fragments containing the sequence 5'-C.sup.MeCpGG-3'. Methods for making and using the rMcrA protein, and derivatives thereof are provided.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-98CH10886
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Number(s):
8,263,742
Application Number:
13/085,219
OSTI ID:
1078331
Country of Publication:
United States
Language:
English

References (21)

MIRA-Assisted Microarray Analysis, a New Technology for the Determination of DNA Methylation Patterns, Identifies Frequent Methylation of Homeodomain-Containing Genes in Lung Cancer Cells journal August 2006
Methylated-CpG island recovery assay: a new technique for the rapid detection of methylated-CpG islands in cancer journal July 2005
The Strep-tag system for one-step purification and high-affinity detection or capturing of proteins journal June 2007
Evidence for an instructive mechanism of de novo methylation in cancer cells journal January 2006
MethyLight: a high-throughput assay to measure DNA methylation journal April 2000
Genome-Wide Profiling of CpG Methylation Identifies Novel Targets of Aberrant Hypermethylation in Myeloid Leukemia journal June 2006
McrA and McrB restriction phenotypes of some E.coli strains and implications for gene cloning journal January 1988
Direct Labeling of 5-Methylcytosine and Its Applications journal May 2007
Chromosome-wide and promoter-specific analyses identify sites of differential DNA methylation in normal and transformed human cells journal July 2005
MeCP2 Binding to DNA Depends upon Hydration at Methyl-CpG journal February 2008
Molecular cloning and sequencing of mcrA locus and identification of McrA protein inEscherichia coli journal September 1992
LUMA (LUminometric Methylation Assay)—A high throughput method to the analysis of genomic DNA methylation journal July 2006
COBRA: a sensitive and quantitative DNA methylation assay journal June 1997
A genomic sequencing protocol that yields a positive display of 5-methylcytosine residues in individual DNA strands. journal March 1992
Purification of CpG islands using a methylated DNA binding column journal March 1994
Atomic model of the 5-methylcytosine-specific restriction enzyme McrA reveals an atypical zinc finger and structural similarity to betabetaalphaMe endonucleases journal September 2000
The affinity of different MBD proteins for a specific methylated locus depends on their intrinsic binding properties journal March 2003
Rapid and sensitive detection of CpG-methylation using methyl-binding (MB)-PCR journal June 2006
High sensitivity mapping of methylated cytosines journal January 1994
Methylation-specific PCR: a novel PCR assay for methylation status of CpG islands. journal September 1996
Rapid quantitation of methylation differences at specific sites using methylation-sensitive single nucleotide primer extension (Ms-SNuPE) journal June 1997

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