Subtypedependent regulation of Gβγ signalling

Peer-reviewed publications
Tennakoon M, Senarath K, Kankanamge D, Ratnayake K, Wijayaratna D, Olupothage K, Ubeysinghe S, Martins-Cannavino K, Hébert TE, Karunarathne A
Publication year: 2021

Tennakoon M, Senarath K, Kankanamge D, Ratnayake K, Wijayaratna D, Olupothage K,
Ubeysinghe S, Martins-Cannavino K, Hébert TE, Karunarathne A (2021) Subtypedependent regulation of Gβγ signalling. Cellular Signaling 82:109947.

A short C-terminal peptide in Gγ regulates Gβγ signaling efficacy

Peer-reviewed publications
Tennakoon M, Senarath K, Kankanamge D, Chadee DN, & Karunarathne A
Publication year: 2021

Tennakoon M, Senarath K, Kankanamge D, Chadee DN, & Karunarathne A (2021) A short C-terminal peptide in Gγ regulates Gβγ signaling efficacy. Molecular Biology of the Cell:mbcE20110750. PMID: 34106735

Microcystins: biogenesis, toxicity, analysis and control

Peer-reviewed publications
Schreidah C.M, Ratnayake K, Senarath K, and Karunarathne A
Publication year: 2020

Schreidah C.M, Ratnayake K, Senarath K, and Karunarathne A (2020), Microcystins:
biogenesis, toxicity, analysis and control. Chemical Research in Toxicology 33(9):2225-
2246.

Statins perturb Gβγ signaling and cell behaviors in a Gγ subtype dependent manner

Peer-reviewed publications
Tennakoon M, Kankanamge D, Senarath K, Fasih Z, & Karunarathne A
Publication year: 2019

Tennakoon M, Kankanamge D, Senarath K, Fasih Z, & Karunarathne A (2019) Statins
perturb Gβγ signaling and cell behaviors in a Gγ subtype dependent manner. Molecular
Pharmacology 95(4):361-375.

Optical approaches for single-cell and subcellular analysis of GPCR–G protein signaling

Peer-reviewed publications
Kankanamge D, Ratnayake K, Senarath K, Tennakoon M, Harmon E, & Karunarathne A
Publication year: 2019

Kankanamge D, Ratnayake K, Senarath K, Tennakoon M, Harmon E, & Karunarathne A
(2019) Optical approaches for single-cell and subcellular analysis of GPCR–G protein
signaling. Analytical and Bioanalytical Chemistry 411(19):4481-4508.

Short preCaaX regions in Gγ are uniquely evolved switches of heterotrimeric G protein signaling

Conference publications/presentations
Kanishka Senarath, Mithila Tennakoon, Deborah N. Chadee, and Ajith Karunarathne
Publication year: 2018

Kanishka Senarath, Mithila Tennakoon, Deborah N. Chadee, and Ajith Karunarathne,
GPCR Retreat 2018, Annual meeting, Detroit, Michigan, USA, Poster title: “Short preCaaX regions in Gγ are uniquely evolved switches of heterotrimeric G protein
signaling”, October 25-27, 2018

Opsins in action-light directed subcellular signaling and cell behaviors

Conference publications/presentations
Ratnayake K, Kanishka Senarath, Siripurapu P, Kankanamge D, Karunarathne A,
Publication year: 2018

Ratnayake K, Kanishka Senarath, Siripurapu P, Kankanamge D, Karunarathne A,
American Society for Photobiology ASP 2018 Biennial Meeting, Tampa-FL, USA, Talk
title: Opsins in action-light directed subcellular signaling and cell behaviors, May 12-15,
2018.

Gγ identity dictates efficacy of Gβγ signaling and macrophage migration

Peer-reviewed publications
Senarath K, Payton JL, Kankanamge D, Siripurapu P, Tennakoon M, & Karunarathne A
Publication year: 2018

Senarath K, Payton JL, Kankanamge D, Siripurapu P, Tennakoon M, & Karunarathne A
(2018) Gγ identity dictates efficacy of Gβγ signaling and macrophage migration. Journal
of Biological Chemistry 293(8):2974-2989.

GRC Meeting on Protein Phosphorylation and G-Protein Mediated Signaling Networks

Conference publications/presentations
Kanishka Senarath, John L. Payton, Dinesh Kankanamge, Praneeth Siripurapu, Mithila Tennakoon, Ajith Karunarathne
Publication year: 2018

Kanishka Senarath, John L. Payton, Dinesh Kankanamge, Praneeth Siripurapu, Mithila
Tennakoon, Ajith Karunarathne, GRC Meeting on Protein Phosphorylation and G-Protein
Mediated Signaling Networks, University of New England, NE, USA, Talk title: Identity
matters: Ggamma-type dictates efficacy of Gbetagamma signaling and cellular decisions,
June 3 – 8, 2018.

G protein γ (Gγ) subtype dependent targeting of GRK2 to M3 receptor by Gβγ

Peer-reviewed publications
Samaradivakara S, Kankanamge D, Senarath K, Ratnayake K, & Karunarathne A
Publication year: 2018

Samaradivakara S, Kankanamge D, Senarath K, Ratnayake K, & Karunarathne A (2018)
G protein γ (Gγ) subtype dependent targeting of GRK2 to M3 receptor by Gβγ.
Biochemical and biophysical research communications 503(1):165-170

Cone opsin based chimeric receptors are equally efficient as ligand binding GPCRs

Conference publications/presentations
Kanishka Senarath and Ajith Karunarathne
Publication year: 2018

Kanishka Senarath and Ajith Karunarathne, 18th International Conference on Retinal
Proteins (ICRP) 2018, Ontario, Canada, Poster title: “Cone opsin based chimeric receptors
are equally efficient as ligand binding GPCRs”, September 24-29, 2018.

Chapter Five - Regulation of G Protein βγ Signaling

Peer-reviewed publications
Senarath K, Kankanamge D, Samaradivakara S, Ratnayake K, Tennakoon M, & Karunarathne A
Publication year: 2018

Senarath K, Kankanamge D, Samaradivakara S, Ratnayake K, Tennakoon M, &
Karunarathne A (2018) Chapter Five – Regulation of G Protein βγ Signaling. International
Review of Cell and Molecular Biology, ed Shukla AK (Academic Press), Vol 339, pp 133-
191.

Two independent but synchronized Gβγ subunit−controlled pathways are essential for trailingedge retraction during macrophage migration

Peer-reviewed publications
Siripurapu P, Kankanamge D, Ratnayake K, Senarath K, & Karunarathne A
Publication year: 2017

Siripurapu P, Kankanamge D, Ratnayake K, Senarath K, & Karunarathne A (2017) Two
independent but synchronized Gβγ subunit−controlled pathways are essential for trailingedge retraction during macrophage migration. Journal of Biological Chemistry
292(42):17482-17495.

Subcellular optogenetics: the search light for hidden treasures

Conference publications/presentations
A. Karunarathne, D. Kankanamge, P. Siripurapu, K. Ratnayake, Kanishka Senarath
Publication year: 2017

A. Karunarathne, D. Kankanamge, P. Siripurapu, K. Ratnayake, Kanishka Senarath,
2017-ACS- Central Regional Meeting (CERM), Dearborn, MI, USA, Talk title:
Subcellular optogenetics: the search light for hidden treasures, June 7, 2017

Reversible Distribution of G Protein βγ9 Based Assay for Real-Time Quantification of GPCR and G Protein Function in Living Cells

Conference publications/presentations
Kanishka Senarath, Kasun Ratnayake, Praneeth Siripurapu, John L. Payton, Ajith Karunarathne
Publication year: 2017

Kanishka Senarath, Kasun Ratnayake, Praneeth Siripurapu, John L. Payton, Ajith
Karunarathne, PITTCON 2017, Chicago, Illinois, USA, Talk title: “Reversible Distribution
of G Protein βγ9 Based Assay for Real-Time Quantification of GPCR and G Protein
Function in Living Cells”, March 5-9, 2017.

Chapter 1 - Measurement of GPCR-G protein activity in living cells

Peer-reviewed publications
Ratnayake K, Kankanamge D, Senarath K, Siripurapu P, Weis N, Tennakoon M, Payton JL, & Karunarathne A
Publication year: 2017

Ratnayake K, Kankanamge D, Senarath K, Siripurapu P, Weis N, Tennakoon M, Payton
JL, & Karunarathne A (2017) Chapter 1 – Measurement of GPCR-G protein activity in
living cells. Methods in Cell Biology, ed Shukla AK (Academic Press), Vol 142, pp 1-25.

Reversible G Protein βγ9 Distribution-Based Assay Reveals Molecular Underpinnings in Subcellular, Single-Cell, and Multicellular GPCR and G Protein Activity

Peer-reviewed publications
Senarath K, Ratnayake K, Siripurapu P, Payton JL, & Karunarathne A
Publication year: 2016

Senarath K, Ratnayake K, Siripurapu P, Payton JL, & Karunarathne A (2016) Reversible
G Protein βγ9 Distribution-Based Assay Reveals Molecular Underpinnings in Subcellular,
Single-Cell, and Multicellular GPCR and G Protein Activity. Analytical Chemistry
88(23):11450-11459.

Non Specific Amplification with the LAMP Technique in the Diagnosis of Tuberculosis in Sri Lankan Settings

Peer-reviewed publications
Senarath KD, Usgodaarachchi, R., Navaratne, V., Nagahawatte, A., Wijayarathna, C., Alvitigala, J. and Goonasekara, C.
Publication year: 2014

Senarath KD, Usgodaarachchi, R., Navaratne, V., Nagahawatte, A., Wijayarathna, C.,
Alvitigala, J. and Goonasekara, C. (2014) Non Specific Amplification with the LAMP
Technique in the Diagnosis of Tuberculosis in Sri Lankan Settings. Journal of Tuberculosis
Research 2(4):168-172.

A noval molecular assay for diagnosis of Tuberculosis: Problems in establishment

Conference publications/presentations
K. D. Senarath, V. Navaratne, C. D. Wijayarathna, A. Nagahawatte, J. Elvitigala, C. L. Goonasekara
Publication year: 2014

K. D. Senarath, V. Navaratne, C. D. Wijayarathna, A. Nagahawatte, J. Elvitigala, C. L.
Goonasekara, International Research Sessions (iPURSE), University of Peradeniya, Sri
Lanka, Talk title: “A noval molecular assay for diagnosis of Tuberculosis: Problems in
establishment”, July 2014.