Date published: 2026-5-30

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V1RH4 Inhibitors

V1RH4 inhibitors constitute a distinctive class of chemical compounds designed to target and interfere with the V1RH4 protein, an integral component of the V-ATPase complex. The V-ATPase, or vacuolar-type H+-ATPase, is a crucial enzyme complex responsible for pumping protons across cellular membranes, which is essential for maintaining the acidic environment of various intracellular compartments, such as lysosomes, endosomes, and vacuoles. The V1RH4 protein specifically is part of the V1 domain of this complex, contributing to its structural stability and functional capability. The V1RH4 protein interacts with other components of the V1 domain to facilitate the enzyme's activity, which includes ATP hydrolysis and subsequent proton transport.

Inhibitors targeting V1RH4 function by binding to this protein and disrupting its interaction with other components of the V-ATPase complex. This disruption impairs the V1RH4 protein's ability to maintain the structural integrity and operational efficacy of the V-ATPase. Consequently, the proton pump's ability to acidify intracellular compartments is compromised. By obstructing the role of V1RH4, these inhibitors impact the overall function of the V-ATPase complex, leading to potential alterations in the regulation of intracellular pH and related cellular processes. Studying V1RH4 inhibitors provides valuable insights into the specific role of the V1RH4 protein within the V-ATPase complex and enhances understanding of the broader mechanisms governing proton transport and intracellular acidification.

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Items 1 to 10 of 12 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Thapsigargin

67526-95-8sc-24017
sc-24017A
1 mg
5 mg
$136.00
$446.00
114
(2)

Thapsigargin inhibits the sarcoplasmic/endoplasmic reticulum Ca2+-ATPase (SERCA), leading to intracellular calcium depletion, which may downregulate V1R199 expression.

Cyclopiazonic Acid

18172-33-3sc-201510
sc-201510A
10 mg
50 mg
$176.00
$624.00
3
(1)

Cyclopiazonic acid inhibits SERCA, leading to intracellular calcium depletion, which may downregulate V1R199 expression.

Verapamil

52-53-9sc-507373
1 g
$374.00
(0)

Verapamil inhibits L-type calcium channels, potentially reducing intracellular calcium levels and inhibiting the calcium-dependent signaling pathways involved in V1R199 expression.

Nifedipine

21829-25-4sc-3589
sc-3589A
1 g
5 g
$59.00
$173.00
15
(1)

Nifedipine inhibits L-type calcium channels, potentially reducing intracellular calcium levels and inhibiting the calcium-dependent signaling pathways involved in V1R199 expression.

Ruthenium red

11103-72-3sc-202328
sc-202328A
500 mg
1 g
$188.00
$250.00
13
(1)

Ruthenium Red is a calcium channel blocker that inhibits calcium influx, potentially interfering with the calcium-dependent signaling pathways involved in V1R199 expression.

SK&F 96365

130495-35-1sc-201475
sc-201475B
sc-201475A
sc-201475C
5 mg
10 mg
25 mg
50 mg
$103.00
$158.00
$397.00
$656.00
2
(1)

SKF-96365 inhibits store-operated calcium entry (SOCE), potentially reducing intracellular calcium levels and inhibiting the calcium-dependent signaling pathways involved in V1R199 expression.

Gadolinium(III) chloride

10138-52-0sc-224004
sc-224004A
5 g
25 g
$153.00
$357.00
4
(1)

Gadolinium chloride inhibits non-selective cation channels, potentially reducing intracellular calcium levels and inhibiting the calcium-dependent signaling pathways involved in V1R199 expression.

Dantrolene

7261-97-4sc-500165
25 mg
$350.00
7
(0)

Dantrolene inhibits calcium release from the sarcoplasmic reticulum, potentially reducing intracellular calcium levels and inhibiting the calcium-dependent signaling pathways involved in V1R199 expression.

EGTA

67-42-5sc-3593
sc-3593A
sc-3593B
sc-3593C
sc-3593D
1 g
10 g
100 g
250 g
1 kg
$21.00
$65.00
$120.00
$251.00
$815.00
23
(1)

EGTA is a calcium chelator that reduces intracellular calcium levels, potentially inhibiting the calcium-dependent signaling pathways involved in V1R199 expression.

BAPTA/AM

126150-97-8sc-202488
sc-202488A
25 mg
100 mg
$138.00
$458.00
61
(2)

BAPTA-AM is a calcium chelator that reduces intracellular calcium levels, potentially inhibiting the calcium-dependent signaling pathways involved in V1R199 expression.