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Table 1 Agonist Pharmacology in HEK and L-cells.

From: Extrinsic factors regulate partial agonist efficacy of strychnine-sensitive glycine receptors

 

GlyR α2

GlyR α2β

System

log EC50

EC50 (mM)

Efficacya

log EC50

EC50 (mM)

Efficacy

 

Glycine

HEK

-3.67 ± 0.15

0.22

--

-3.55 ± 0.06

0.28

--

L-cells

-3.36 ± 0.05

0.43

--

-3.17 ± 0.04

0.67

--

 

β-Alanine

HEK

-3.12 ± 0.05

0.76

0.80 ± 0.06

-3.24 ± 0.03

0.57

0.55 ± 0.07

L-cells

-2.71 ± 0.08b

1.93

0.39 ± 0.08

-2.59 ± 0.13

2.59

0.25 ± 0.05

 

Taurine

HEK

-3.13 ± 0.12

0.74

0.48 ± 0.12

-2.67 ± 0.12

2.20

0.32 ± 0.05

L-cells

≥-3.00 ± 0.11c

1.00

0.06 ± 0.01

≥-2.97 ± 0.20c

1.10

0.05 ± 0.01

  1. a – efficacy relative to maximal glycine response b – p < 0.0001 for system but not subunit using two-way ANOVA c – estimate due to low efficacy