Publications


Biogenesis of cytochromes c and c1 in the electron transport chain of malaria parasites

Aldo E. García-Guerrero, Rebecca G. Marvin, Amanda Mixon Blackwell,  Paul A. Sigala

bioRxiv, 2024. doi: https://doi.org/10.1101/2024.02.01.575742


The interdependence of isoprenoid synthesis and apicoplast biogenesis in malaria parasites

Megan Okada and Paul A Sigala

PLoS Pathos. 2023 Oct. 26;19(10):e1011713


Tanya J. Espino-Sanchez

Elife. 2023 Sept. 5; 12:e92403.


Direct tests of cytochrome c and c1 functions in the electron transport chain of malaria parasites

Tanya J. Espino-Sanchez*, Henry Wienkers*, Rebecca G. Marvin*, Shai-anne Nalder, Aldo E. García-Guerrero, Peter E. VanNatta, Yasaman Jami-Alahmadi, Amanda Mixon Blackwell, Frank G. Whitby, James A. Wohlschlegel, Matthew T. Kieber-Emmons, Christopher P. Hill, and Paul A. Sigala

PNAS. 2023 May 1;120 (19) e2301047120.


Multiple-Streams Focusing-Based Cell Separation in High Viscoelasticity Flow

Haidong Feng, Dhruv Patel, Jules J. Magda, Sage Geher, Paul A. Sigala, and Bruce K. Gale

ACS Omega. 2022 7: 41759–41767.


Critical role for isoprenoids in apicoplast biogenesis by malaria parasites

Okada M, Rajaram K, Swift RP, Mixon A, Maschek JA, Prigge ST, Sigala PA

Elife. 2022 Mar 8;11:e73208.


Divergent Acyl Carrier Protein Decouples Mitochondrial Fe-S Cluster Biogenesis from Fatty Acid Synthesis in Malaria Parasites

Seyi Falekun, Jaime Sepulveda, Yasaman Jami-Alahmadi, Hahnbeom Park, James A. Wohlschlegel, Sigala PA

Elife. 2021 Oct 6;10:e71636.


Doxycycline has Distinct Apicoplast-Specific Mechanisms of Antimalarial Activity

Megan Okada, Ping Guo, Shai-anne Nalder and Sigala PA 

Elife. 2020 Nov 2;9:e60246.


Plasmodium heme biosynthesis: To be or not to be essential?

Goldberg DE and Sigala PA

PLoS Pathog. 2017 Sep 28;13(9):e1006511.


In-Cell Enzymology To Probe His–Heme Ligation in Heme Oxygenase Catalysis

Sigala PA, Morante K, Tsumoto K, Caaveiro JM, and Goldberg DE

Biochemistry. 2016 Aug 30;55(34):4836-49.


Deconvoluting heme biosynthesis to target blood-stage malaria parasites

Sigala PA, Crowley JR, Henderson JP, Goldberg DE

Elife. 2015 Jul 14;4:e09143.


The heme biosynthesis pathway is essential for Plasmodium falciparum development in mosquito stage but not in blood stages

Ke H*, Sigala PA*, Miura K, Morrisey JM, Mather MW, Crowley JR, Henderson JP, Goldberg DE, Long CA, Vaidya AB

J Biol Chem. 2014 Dec 12;289(50):34827-37.


The peculiarities and paradoxes of Plasmodium heme metabolism

Sigala PA, Goldberg DE

Annu Rev Microbiol. 2014; 68:259-78. [Review]


Direct tests of enzymatic heme degradation by the malaria parasite Plasmodium falciparum

Sigala PA, Crowley JR, Hsieh S, Henderson JP, Goldberg DE

J Biol Chem. 2012 Nov 2;287(45):37793-807.

 
Fighting Malaria with Light

Fighting Malaria with Light

 

Funding

 

Patent

patent pending

Combination artemisinin and chemiluminescent photodynamic therapy

Prior Publications


Quantitative, directional measurement of electric field heterogeneity in the active site of ketosteroid isomerase

Fafarman AT, Sigala PA, Schwans JP, Fenn TD, Herschlag D, Boxer SG.

Proc Natl Acad Sci U S A. 2012 Feb 7;109(6):E299-308.


Hydrogen bonding in the active site of ketosteroid isomerase: electronic inductive effects and hydrogen bond coupling

Hanoian P, Sigala PA, Herschlag D, Hammes-Schiffer S.

Biochemistry. 2010 Dec 7;49(48):10339-48.


Decomposition of vibrational shifts of nitriles into electrostatic and hydrogen-bonding effects

Fafarman AT, Sigala PA, Herschlag D, Boxer SG.

J Am Chem Soc. 2010 Sep 22;132(37):12811-3.


Dissecting the paradoxical effects of hydrogen bond mutations in the ketosteroid isomerase oxyanion hole

Kraut DA, Sigala PA, Fenn TD, Herschlag D.

Proc Natl Acad Sci U S A. 2010 Feb 2;107(5):1960-5.


Hydrogen bond dynamics in the active site of photoactive yellow protein

Sigala PA, Tsuchida MA, Herschlag D.

Proc Natl Acad Sci U S A. 2009 Jun 9;106(23):9232-7.


Hydrogen bond coupling in the ketosteroid isomerase active site

Sigala PA, Caaveiro JM, Ringe D, Petsko GA, Herschlag D.

Biochemistry. 2009 Jul 28;48(29):6932-9.


Testing geometrical discrimination within an enzyme active site: constrained hydrogen bonding in the ketosteroid isomerase oxyanion hole

Sigala PA, Kraut DA, Caaveiro JM, Pybus B, Ruben EA, Ringe D, Petsko GA, Herschlag D.

J Am Chem Soc. 2008 Oct 15;130(41):13696-708.


Do ligand binding and solvent exclusion alter the electrostatic character within the oxyanion hole of an enzymatic active site?

Sigala PA, Fafarman AT, Bogard PE, Boxer SG, Herschlag D.

J Am Chem Soc. 2007 Oct 10;129(40):12104-5.


Testing electrostatic complementarity in enzyme catalysis: hydrogen bonding in the ketosteroid isomerase oxyanion hole

Kraut DA, Sigala PA, Pybus B, Liu CW, Ringe D, Petsko GA, Herschlag D.

PLoS Biol. 2006 Apr;4(4):e99.