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Profile Publications (48)
XB-PERS-2025

Publications By Graham A. Johnston

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GABAA receptor cysteinyl mutants and the ginkgo terpenoid lactones bilobalide and ginkgolides., Ng CC, Duke RK, Hinton T, Johnston GA., Eur J Pharmacol. April 15, 2016; 777 136-46.


Modulation of ionotropic GABA receptors by 6-methoxyflavanone and 6-methoxyflavone., Hall BJ, Karim N, Chebib M, Johnston GA, Hanrahan JR., Neurochem Res. June 1, 2014; 39 (6): 1068-78.


GABAA receptors containing ρ1 subunits contribute to in vivo effects of ethanol in mice., Blednov YA, Benavidez JM, Black M, Leiter CR, Osterndorff-Kahanek E, Johnson D, Borghese CM, Hanrahan JR, Johnston GA, Chebib M, Harris RA., PLoS One. January 1, 2014; 9 (1): e85525.                      


Potency of GABA at human recombinant GABA(A) receptors expressed in Xenopus oocytes: a mini review., Karim N, Wellendorph P, Absalom N, Johnston GA, Hanrahan JR, Chebib M., Amino Acids. April 1, 2013; 44 (4): 1139-49.


Mixed antagonistic effects of the ginkgolides at recombinant human ρ1 GABAC receptors., Huang SH, Lewis TM, Lummis SC, Thompson AJ, Chebib M, Johnston GA, Duke RK., Neuropharmacology. November 1, 2012; 63 (6): 1127-39.                      


Differentiating enantioselective actions of GABOB: a possible role for threonine 244 in the binding site of GABA(C) ρ(1) receptors., Yamamoto I, Absalom N, Carland JE, Doddareddy MR, Gavande N, Johnston GA, Hanrahan JR, Chebib M., ACS Chem Neurosci. September 19, 2012; 3 (9): 665-73.


Low nanomolar GABA effects at extrasynaptic α4β1/β3δ GABA(A) receptor subtypes indicate a different binding mode for GABA at these receptors., Karim N, Wellendorph P, Absalom N, Bang LH, Jensen ML, Hansen MM, Lee HJ, Johnston GA, Hanrahan JR, Chebib M., Biochem Pharmacol. August 15, 2012; 84 (4): 549-57.


A single amino acid determines the toxicity of Ginkgo biloba extracts., Thompson AJ, McGonigle I, Duke R, Johnston GA, Lummis SC., FASEB J. May 1, 2012; 26 (5): 1884-91.                    


Structurally diverse GABA antagonists interact differently with open and closed conformational states of the ρ1 receptor., Yamamoto I, Carland JE, Locock K, Gavande N, Absalom N, Hanrahan JR, Allan RD, Johnston GA, Chebib M., ACS Chem Neurosci. April 18, 2012; 3 (4): 293-301.


2'-Methoxy-6-methylflavone: a novel anxiolytic and sedative with subtype selective activating and modulating actions at GABA(A) receptors., Karim N, Curmi J, Gavande N, Johnston GA, Hanrahan JR, Tierney ML, Chebib M., Br J Pharmacol. February 1, 2012; 165 (4): 880-96.


Flavan-3-ol esters: new agents for exploring modulatory sites on GABA(A) receptors., Fernandez SP, Karim N, Mewett KN, Chebib M, Johnston GA, Hanrahan JR., Br J Pharmacol. February 1, 2012; 165 (4): 965-77.


3-Hydroxy-2'-methoxy-6-methylflavone: a potent anxiolytic with a unique selectivity profile at GABA(A) receptor subtypes., Karim N, Gavande N, Wellendorph P, Johnston GA, Hanrahan JR, Chebib M., Biochem Pharmacol. December 15, 2011; 82 (12): 1971-83.


Identification of benzopyran-4-one derivatives (isoflavones) as positive modulators of GABA(A) receptors., Gavande N, Karim N, Johnston GA, Hanrahan JR, Chebib M., ChemMedChem. August 1, 2011; 6 (8): 1340-6, 1317.


Naringin directly activates inwardly rectifying potassium channels at an overlapping binding site to tertiapin-Q., Yow TT, Pera E, Absalom N, Heblinski M, Johnston GA, Hanrahan JR, Chebib M., Br J Pharmacol. July 1, 2011; 163 (5): 1017-33.


Ginkgolide B and bilobalide block the pore of the 5-HT₃receptor at a location that overlaps the picrotoxin binding site., Thompson AJ, Jarvis GE, Duke RK, Johnston GA, Lummis SC., Neuropharmacology. January 1, 2011; 60 (2-3): 488-95.        


Guanidino acids act as rho1 GABA(C) receptor antagonists., Chebib M, Gavande N, Wong KY, Park A, Premoli I, Mewett KN, Allan RD, Duke RK, Johnston GA, Hanrahan JR., Neurochem Res. October 1, 2009; 34 (10): 1704-11.


GABA analogues derived from 4-aminocyclopent-1-enecarboxylic acid., Locock KE, Johnston GA, Allan RD., Neurochem Res. October 1, 2009; 34 (10): 1698-703.


Novel, potent, and selective GABAC antagonists inhibit myopia development and facilitate learning and memory., Chebib M, Hinton T, Schmid KL, Brinkworth D, Qian H, Matos S, Kim HL, Abdel-Halim H, Kumar RJ, Johnston GA, Hanrahan JR., J Pharmacol Exp Ther. February 1, 2009; 328 (2): 448-57.


Flavan-3-ol derivatives are positive modulators of GABA(A) receptors with higher efficacy for the alpha(2) subtype and anxiolytic action in mice., Fernandez SP, Mewett KN, Hanrahan JR, Chebib M, Johnston GA., Neuropharmacology. October 1, 2008; 55 (5): 900-7.


Novel gamma-aminobutyric acid rho1 receptor antagonists; synthesis, pharmacological activity and structure-activity relationships., Kumar RJ, Chebib M, Hibbs DE, Kim HL, Johnston GA, Salam NK, Hanrahan JR., J Med Chem. July 10, 2008; 51 (13): 3825-40.


Relative impact of residues at the intracellular and extracellular ends of the human GABAC rho1 receptor M2 domain on picrotoxinin activity., Carland JE, Johnston GA, Chebib M., Eur J Pharmacol. February 2, 2008; 580 (1-2): 27-35.


Enantioselective actions of 4-amino-3-hydroxybutanoic acid and (3-amino-2-hydroxypropyl)methylphosphinic acid at recombinant GABA(C) receptors., Hinton T, Chebib M, Johnston GA., Bioorg Med Chem Lett. January 1, 2008; 18 (1): 402-4.


(3-Aminocyclopentyl)methylphosphinic acids: novel GABA(C) receptor antagonists., Chebib M, Hanrahan JR, Kumar RJ, Mewett KN, Morriss G, Wooller S, Johnston GA., Neuropharmacology. March 1, 2007; 52 (3): 779-87.


Enantiomers of cis-constrained and flexible 2-substituted GABA analogues exert opposite effects at recombinant GABA(C) receptors., Crittenden DL, Park A, Qiu J, Silverman RB, Duke RK, Johnston GA, Jordan MJ, Chebib M., Bioorg Med Chem. January 15, 2006; 14 (2): 447-55.


Mixed antagonistic effects of bilobalide at rho1 GABAC receptor., Huang SH, Duke RK, Chebib M, Sasaki K, Wada K, Johnston GA., Neuroscience. January 1, 2006; 137 (2): 607-17.


6-Methylflavanone, a more efficacious positive allosteric modulator of gamma-aminobutyric acid (GABA) action at human recombinant alpha2beta2gamma2L than at alpha1beta2gamma2L and alpha1beta2 GABA(A) receptors expressed in Xenopus oocytes., Hall BJ, Chebib M, Hanrahan JR, Johnston GA., Eur J Pharmacol. April 11, 2005; 512 (2-3): 97-104.


(+)- And (-)-borneol: efficacious positive modulators of GABA action at human recombinant alpha1beta2gamma2L GABA(A) receptors., Granger RE, Campbell EL, Johnston GA., Biochem Pharmacol. April 1, 2005; 69 (7): 1101-11.


The dietary flavonoids apigenin and (-)-epigallocatechin gallate enhance the positive modulation by diazepam of the activation by GABA of recombinant GABA(A) receptors., Campbell EL, Chebib M, Johnston GA., Biochem Pharmacol. October 15, 2004; 68 (8): 1631-8.


Ginkgolides, diterpene trilactones of Ginkgo biloba, as antagonists at recombinant alpha1beta2gamma2L GABAA receptors., Huang SH, Duke RK, Chebib M, Sasaki K, Wada K, Johnston GA., Eur J Pharmacol. June 28, 2004; 494 (2-3): 131-8.


Mutations of the 2' proline in the M2 domain of the human GABAC rho1 subunit alter agonist responses., Carland JE, Moore AM, Hanrahan JR, Mewett KN, Duke RK, Johnston GA, Chebib M., Neuropharmacology. May 1, 2004; 46 (6): 770-81.


Flumazenil-independent positive modulation of gamma-aminobutyric acid action by 6-methylflavone at human recombinant alpha1beta2gamma2L and alpha1beta2 GABAA receptors., Hall BJ, Chebib M, Hanrahan JR, Johnston GA., Eur J Pharmacol. April 26, 2004; 491 (1): 1-8.


Aza-THIP and related analogues of THIP as GABA C antagonists., Krehan D, Frølund B, Ebert B, Nielsen B, Krogsgaard-Larsen P, Johnston GA, Chebib M., Bioorg Med Chem. November 17, 2003; 11 (23): 4891-6.


Semisynthetic preparation of amentoflavone: A negative modulator at GABA(A) receptors., Hanrahan JR, Chebib M, Davucheron NL, Hall BJ, Johnston GA., Bioorg Med Chem Lett. July 21, 2003; 13 (14): 2281-4.


Convulsant actions of calycanthine., Chebib M, Duke RK, Duke CC, Connor M, Mewett KN, Johnston GA., Toxicol Appl Pharmacol. July 1, 2003; 190 (1): 58-64.


Phosphinic, phosphonic and seleninic acid bioisosteres of isonipecotic acid as novel and selective GABA(C) receptor antagonists., Krehan D, Frølund B, Krogsgaard-Larsen P, Kehler J, Johnston GA, Chebib M., Neurochem Int. June 1, 2003; 42 (7): 561-5.


Bilobalide, a sesquiterpene trilactone from Ginkgo biloba, is an antagonist at recombinant alpha1beta2gamma2L GABA(A) receptors., Huang SH, Duke RK, Chebib M, Sasaki K, Wada K, Johnston GA., Eur J Pharmacol. March 7, 2003; 464 (1): 1-8.


trans-4-Amino-2-methylbut-2-enoic acid (2-MeTACA) and (+/-)-trans-2-aminomethylcyclopropanecarboxylic acid ((+/-)-TAMP) can differentiate rat rho3 from human rho1 and rho2 recombinant GABA(C) receptors., Vien J, Duke RK, Mewett KN, Johnston GA, Shingai R, Chebib M., Br J Pharmacol. February 1, 2002; 135 (4): 883-90.


The effects of cyclopentane and cyclopentene analogues of GABA at recombinant GABA(C) receptors., Chebib M, Duke RK, Allan RD, Johnston GA., Eur J Pharmacol. November 2, 2001; 430 (2-3): 185-92.


(+)- and (-)-cis-2-aminomethylcyclopropanecarboxylic acids show opposite pharmacology at recombinant rho(1) and rho(2) GABA(C) receptors., Duke RK, Chebib M, Balcar VJ, Allan RD, Mewett KN, Johnston GA., J Neurochem. December 1, 2000; 75 (6): 2602-10.


Aminomethyl-2,6-difluorophenols as a novel class of increased lipophilicity GABA(C) receptor antagonists., Chebib M, Johnston GA, Mattsson JP, Rydström K, Nilsson K, Qiu J, Stevenson SH, Silverman RB., Bioorg Med Chem Lett. November 1, 1999; 9 (21): 3093-8.


Stereoselective interaction of thiopentone enantiomers with the GABA(A) receptor., Cordato DJ, Chebib M, Mather LE, Herkes GK, Johnston GA., Br J Pharmacol. September 1, 1999; 128 (1): 77-82.


GABA(C) receptor antagonists differentiate between human rho1 and rho2 receptors expressed in Xenopus oocytes., Chebib M, Mewett KN, Johnston GA., Eur J Pharmacol. September 18, 1998; 357 (2-3): 227-34.


Molecular basis for differential inhibition of glutamate transporter subtypes by zinc ions., Vandenberg RJ, Mitrovic AD, Johnston GA., Mol Pharmacol. July 1, 1998; 54 (1): 189-96.


Identification of functional domains of the human glutamate transporters EAAT1 and EAAT2., Mitrovic AD, Amara SG, Johnston GA, Vandenberg RJ., J Biol Chem. June 12, 1998; 273 (24): 14698-706.


Serine-O-sulphate transport by the human glutamate transporter, EAAT2., Vandenberg RJ, Mitrovic AD, Johnston GA., Br J Pharmacol. April 1, 1998; 123 (8): 1593-600.


Analogues of gamma-aminobutyric acid (GABA) and trans-4-aminocrotonic acid (TACA) substituted in the 2 position as GABAC receptor antagonists., Chebib M, Vandenberg RJ, Johnston GA., Br J Pharmacol. December 1, 1997; 122 (8): 1551-60.


Unsaturated phosphinic analogues of gamma-aminobutyric acid as GABA(C) receptor antagonists., Chebib M, Vandenberg RJ, Froestl W, Johnston GA., Eur J Pharmacol. June 25, 1997; 329 (2-3): 223-9.


Contrasting modes of action of methylglutamate derivatives on the excitatory amino acid transporters, EAAT1 and EAAT2., Vandenberg RJ, Mitrovic AD, Chebib M, Balcar VJ, Johnston GA., Mol Pharmacol. May 1, 1997; 51 (5): 809-15.

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