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John O'Callaghan
John O'Callaghan
Chief Technical Officer - School of Microbiology University College Cork
Verified email at ucc.ie
Title
Cited by
Cited by
Year
Genome sequence of Lactobacillus helveticus, an organism distinguished by selective gene loss and insertion sequence element expansion
M Callanan, P Kaleta, J O'Callaghan, O O'Sullivan, K Jordan, O McAuliffe, ...
Journal of bacteriology 190 (2), 727-735, 2008
2462008
Colonic microbiota is associated with inflammation and host epigenomic alterations in inflammatory bowel disease
Nature Communications 11, 1-12, 2020
241*2020
A polyketide synthase gene required for ochratoxin A biosynthesis in Aspergillus ochraceus
J O'Callaghan, MX Caddick, ADW Dobson
Microbiology 149 (12), 3485-3491, 2003
2322003
PCR-based detection and quantification of mycotoxigenic fungi
SG Edwards, J O'CALLAGHAN, ADW Dobson
Mycological Research 106 (09), 1005-1025, 2002
2132002
Molecular cloning of a laccase isozyme gene from Pleurotus sajor-caju and expression in the heterologous Pichia pastoris host
DM Soden, J O’callaghan, ADW Dobson
Microbiology 148 (12), 4003-4014, 2002
2112002
Comparative genomics of lactic acid bacteria reveals a niche-specific gene set
O O'sullivan, J O'Callaghan, A Sangrador-Vegas, O McAuliffe, L Slattery, ...
BMC microbiology 9 (1), 50, 2009
1602009
Invited review: Lactobacillus helveticus—a thermophilic dairy starter related to gut bacteria
L Slattery, J O’Callaghan, GF Fitzgerald, T Beresford, RP Ross
Journal of dairy science 93 (10), 4435-4454, 2010
1562010
Lactobacillus: Host–Microbe Relationships
J O’Callaghan, PW O’Toole
Between Pathogenicity and Commensalism, 119-154, 2011
1272011
Ochratoxin A biosynthetic genes in Aspergillus ochraceus are differentially regulated by pH and nutritional stimuli
J O’Callaghan, PC Stapleton, ADW Dobson
Fungal Genetics and Biology 43 (4), 213-221, 2006
1202006
Exposure of Bifidobacterium longum subsp. infantis to Milk Oligosaccharides Increases Adhesion to Epithelial Cells and Induces a Substantial Transcriptional Response
DW Kavanaugh, J O’Callaghan, LF Buttó, H Slattery, J Lane, M Clyne, ...
PLOS ONE 8 (6), e67224, 2013
1132013
Mechanism of protection of transepithelial barrier function by Lactobacillus salivarius: strain dependence and attenuation by bacteriocin production
E Miyauchi, J O'Callaghan, LF Buttó, G Hurley, S Melgar, S Tanabe, ...
American Journal of Physiology-Gastrointestinal and Liver Physiology 303 (9 …, 2012
1132012
Optimisation of the expression of a Trametes versicolor laccase gene in Pichia pastoris
J O'callaghan, M O'brien, K McClean, ADW Dobson
Journal of industrial Microbiology and Biotechnology 29 (2), 55-59, 2002
942002
Cloning, sequence analysis and heterologous expression in Pichia pastoris of a gene encoding a thermostable cellobiose dehydrogenase from Myriococcum thermophilum
M Zámocký, C Schümann, C Sygmund, J O’Callaghan, ADW Dobson, ...
Protein expression and purification 59 (2), 258-265, 2008
872008
Transcriptional response of HT-29 intestinal epithelial cells to human and bovine milk oligosaccharides
JA Lane, J O'Callaghan, SD Carrington, RM Hickey
British Journal of Nutrition 110 (12), 2127-2137, 2013
802013
Metabolism of four α-glycosidic linkage-containing oligosaccharides by Bifidobacterium breve UCC2003
KJ O'Connell, MOC Motherway, J O'Callaghan, GF Fitzgerald, RP Ross, ...
Applied and environmental microbiology 79 (20), 6280-6292, 2013
702013
Cloning and molecular characterization of Penicillium expansum genes upregulated under conditions permissive for patulin biosynthesis
S White, J O'Callaghan, ADW Dobson
FEMS microbiology letters 255 (1), 17-26, 2006
682006
Functional characterization of the polyketide synthase gene required for ochratoxin A biosynthesis in Penicillium verrucosum
J O'Callaghan, A Coghlan, A Abbas, C García-Estrada, JF Martín, ...
International journal of food microbiology 161 (3), 172-181, 2013
592013
Bovine glycomacropeptide promotes the growth of Bifidobacterium longum ssp. infantis and modulates its gene expression
N O'Riordan, J O'Callaghan, LF Buttò, M Kilcoyne, L Joshi, RM Hickey
Journal of dairy science, 2018
562018
Influence of adhesion and bacteriocin production by Lactobacillus salivarius on the intestinal epithelial cell transcriptional response
J O'Callaghan, LF Buttó, J MacSharry, K Nally, PW O'Toole
Applied and environmental microbiology 78 (15), 5196-5203, 2012
542012
Growth of Lactococcus lactis strains at low water activity: correlation with the ability to accumulate glycine betaine
J O’Callaghan, S Condon
International journal of food microbiology 55 (1-3), 127-131, 2000
452000
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