D. Ramotar

Publications106
h-index28
Citations2,699
Highly Influential Citations128
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Molecular Cloning of the Human Gene, PNKP, Encoding a Polynucleotide Kinase 3′-Phosphatase and Evidence for Its Role in Repair of DNA Strand Breaks Caused by Oxidative Damage*
Mammalian polynucleotide kinases catalyze the 5′-phosphorylation of nucleic acids and can have associated 3′-phosphatase activity, predictive of an important function in DNA repair following ionizing… Expand
  • 233
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Human Glyceraldehyde-3-phosphate Dehydrogenase Plays a Direct Role in Reactivating Oxidized Forms of the DNA Repair Enzyme APE1*
Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) has diverse biological functions including its nuclear translocation in response to oxidative stress. We show that GAPDH physically associates with… Expand
  • 123
  • 8
The Human Carnitine Transporter SLC22A16 Mediates High Affinity Uptake of the Anticancer Polyamine Analogue Bleomycin-A5*
Bleomycin is used in combination with other antineoplastic agents to effectively treat lymphomas, testicular carcinomas, and squamous cell carcinomas of the cervix, head, and neck. However,… Expand
  • 78
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Cellular role of yeast Apn1 apurinic endonuclease/3'-diesterase: repair of oxidative and alkylation DNA damage and control of spontaneous mutation.
The APN1 gene of Saccharomyces cerevisiae encodes the major apurinic/apyrimidinic endonuclease and 3'-repair DNA diesterase in yeast cell extracts. The Apn1 protein is a homolog of Escherichia coli… Expand
  • 197
  • 7
A Genome-Wide Screen in Saccharomyces cerevisiae Reveals Altered Transport As a Mechanism of Resistance to the Anticancer Drug Bleomycin
The potent DNA damaging agent bleomycin (BLM) is highly effective for treating various cancers, although, in certain individuals, the development of cellular resistance to the drug can severely… Expand
  • 104
  • 7
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Pir1p Mediates Translocation of the Yeast Apn1p Endonuclease into the Mitochondria To Maintain Genomic Stability
ABSTRACT The mitochondrial genome is continuously subject to attack by reactive oxygen species generated through aerobic metabolism. This leads to the formation of a variety of highly genotoxic DNA… Expand
  • 100
  • 6
The apurinic-apyrimidinic endonuclease IV family of DNA repair enzymes.
  • D. Ramotar
  • Chemistry, Medicine
  • Biochemistry and cell biology = Biochimie et…
  • 1997
Apurinic-apyrimidinic (AP) sites are DNA lesions that lack template information and are produced either spontaneously or by a variety of DNA damaging agents. AP sites must therefore be repaired;… Expand
  • 54
  • 6
AGP2 Encodes the Major Permease for High Affinity Polyamine Import in Saccharomyces cerevisiae*[boxs]
Polyamines play essential functions in many aspects of cell biology. Plasma membrane transport systems for the specific uptake of polyamines exist in most eukaryotic cells but have been very recently… Expand
  • 83
  • 6
Yap1 overproduction restores arsenite resistance to the ABC transporter deficient mutant ycf1 by activating ACR3 expression.
Ycf1 and Acr3 are transporters that have been previously shown to protect Saccharomyces cerevisiae cells from the toxic effects of arsenite. Ycf1 and Acr3 are positively regulated by distinct, but… Expand
  • 22
  • 5
Transcriptional activation of metalloid tolerance genes in Saccharomyces cerevisiae requires the AP-1-like proteins Yap1p and Yap8p.
All organisms are equipped with systems for detoxification of the metalloids arsenic and antimony. Here, we show that two parallel pathways involving the AP-1-like proteins Yap1p and Yap8p are… Expand
  • 84
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