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T200

Sigma-Aldrich

(1,2,5,6-Tetrahydropyridin-4-yl)methylphosphinic acid hydrate

≥97% (HPLC), solid

Sinonimo/i:

TPMPA hydrate

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About This Item

Formula empirica (notazione di Hill):
C6H12NO2P · xH2O
Numero CAS:
Peso molecolare:
161.14 (anhydrous basis)
Codice UNSPSC:
12352106
ID PubChem:
NACRES:
NA.77

Livello qualitativo

Saggio

≥97% (HPLC)

Stato

solid

Colore

white to off-white

Solubilità

H2O: 16 mg/mL
DMSO: insoluble

Stringa SMILE

[H]O[H].CP([O-])(=O)C1=CC[NH2+]CC1

InChI

1S/C6H12NO2P.H2O/c1-10(8,9)6-2-4-7-5-3-6;/h2,7H,3-5H2,1H3,(H,8,9);1H2
GXVWAQPRAQORGS-UHFFFAOYSA-N

Applicazioni

(1,2,5,6-Tetrahydropyridin-4-yl)methylphosphinic acid hydrate has also been used as γ-aminobutyric acid C (GABAc) blocker in retinal ganglion cells.
TPMA has been used as a GABAC receptor antagonist to study the role of inner retinal inhibition in midget ganglion cells. TPMPA has also been used to study the role of GABAC receptor antagonists in suppressing orientation selectivity in ganglion cells.

Azioni biochim/fisiol

TPMPA is a hybrid of isoguvacine and 3-APMPA designed to retain affinity for GABAC receptors but not to interact with GABAA or GABAB receptors. Electrical assays show that TPMPA is a competitive antagonist of cloned human mu 1 GABAC receptors expressed in Xenopus laevis oocytes (Kb approx. 2 μM). TPMPA is >100-fold weaker as an inhibitor of rat brain GABAA receptors expressed in oocytes (Kb approx. 320 μM) and has only weak agonist activity on GABAB receptors assayed in rat hippocampal slices (EC50 approx. 500 μM). TPMPA may be used to investigate GABAC receptor function in the outer retina and in any other areas of the nervous system in which these types of receptor are present.

Caratteristiche e vantaggi

This compound is a featured product for Neuroscience research. Click here to discover more featured Neuroscience products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the GABAC Receptors page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Nota sulla preparazione

(1,2,5,6-Tetrahydropyridin-4-yl)methylphosphinic acid (TPMPA) hydrate is soluble in water at 16 mg/ml, but is insoluble in DMSO.

Note legali

Sold in the USA under exclusive license from the University of California.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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The Journal of neuroscience : the official journal of the Society for Neuroscience, 30(46), 15664-15676 (2010-11-19)
Cells sensitive to the orientation of edges are ubiquitous in visual systems, and have been described in the vertebrate retina, yet the synaptic mechanisms that generate orientation selectivity in the retina are largely unknown. Here, we analyze the synaptic mechanisms
The first selective antagonist for a GABAC receptor.
Murata, Y., et al.
Bioorganic & Medicinal Chemistry Letters, 6, 2073-2076 (1996)
G A Johnston
Trends in pharmacological sciences, 17(9), 319-323 (1996-09-01)
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In mammals, receptors for the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) are divided into three pharmacological classes, which are denoted GABAA, GABAB, and GABAC. GABAC receptors are defined by their insensitivity to the GABAA receptor antagonist bicuculline and the GABAB receptor
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