Brian P. Callahan, Ph.D.

Affiliations: 
2005 University of North Carolina, Chapel Hill, Chapel Hill, NC 
Area:
Kinetics of Enzymatic Reactions
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Richard V. Wolfenden grad student 2005 UNC Chapel Hill
 (Mechanism of (bio)alkylation and decarboxylation in water, and mechanistic inhibitors of orotidine 5'-phosphate decarboxylase.)
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Publications

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Ciulla DA, Xu Z, Pezzullo JL, et al. (2023) Paracatalytic induction: Subverting specificity in hedgehog protein autoprocessing with small molecules. Methods in Enzymology. 685: 1-41
Callahan BP, Xu Z. (2023) There's more to enzyme antagonism than inhibition. Bioorganic & Medicinal Chemistry. 82: 117231
Ciulla DA, Dranchak P, Pezzullo JL, et al. (2022) A cell-based bioluminescence reporter assay of human Sonic Hedgehog protein autoprocessing to identify inhibitors and activators. The Journal of Biological Chemistry. 102705
Wagner AG, Stagnitta RT, Xu Z, et al. (2021) Nanomolar, Noncovalent Antagonism of Hedgehog Cholesterolysis: Exception to the "Irreversibility Rule" for Protein Autoprocessing Inhibition. Biochemistry
Callahan BP, Ciulla DA, Wagner AG, et al. (2020) Specificity Distorted: Chemical Induction of Biological Paracatalysis. Biochemistry
Smith CJ, Wagner AG, Stagnitta RT, et al. (2020) Subverting Hedgehog Protein Autoprocessing by Chemical Induction of Paracatalysis. Biochemistry
Zhao J, Ciulla DA, Xie J, et al. (2019) General Base Swap Preserves Activity and Expands Substrate Tolerance in Hedgehog Autoprocessing. Journal of the American Chemical Society
Zhang X, Xu Z, Moumin DS, et al. (2019) Protein-Nucleic Acid Conjugation with Sterol Linkers Using Hedgehog Autoprocessing. Bioconjugate Chemistry
Ciulla DA, Wagner AG, Liu X, et al. (2019) Sterol A-ring plasticity in hedgehog protein cholesterolysis supports a primitive substrate selectivity mechanism. Chemical Communications (Cambridge, England)
Ciulla D, Jorgensen M, Giner JL, et al. (2017) Chemical bypass of general base catalysis in hedgehog protein cholesterolysis using a hyper-nucleophilic substrate. Journal of the American Chemical Society
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