Date published: 2026-4-24

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spectrin β II Inhibitors

Spectrin β II inhibitors are a class of compounds that interfere with the stability and function of spectrin β II indirectly by affecting various cellular pathways and processes that spectrin β II is involved in. Since spectrin β II itself does not possess enzymatic activity, these compounds operate by inhibiting the proteases that degrade spectrin β II, modulating cytoskeletal dynamics, or altering the signaling pathways that regulate spectrin β II function. For instance, protease inhibitors such as Calpeptin, E-64, and Leupeptin can preserve spectrin β II integrity by preventing its cleavage, which could otherwise compromise the cytoskeletal framework and associated cellular functions.

Compounds that impact the dynamics of the cytoskeleton, such as Cytochalasin D, ML-7, and Phalloidin, can influence the interaction between spectrin β II and actin, thereby affecting cell shape and mechanical properties that are crucial for spectrin β II function. Furthermore, molecules like Marimastat, which inhibit MMPs, may support spectrin β II function by maintaining the extracellular matrix environment that spectrin interacts with. Similarly, modulators of calcium levels or signaling, like BAPTA-AM, are crucial as calcium-dependent proteolytic processes can be involved in the degradation or functional modulation of spectrin β II. This intricate network of indirect influences underscores the complexity of targeting a structural protein such as spectrin β II and the multifaceted approach required to modulate its function within the cell.

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Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Calpeptin

117591-20-5sc-202516
sc-202516A
10 mg
50 mg
$121.00
$456.00
28
(1)

Calpeptin is a calpain inhibitor. Calpains can cleave spectrin β II, so their inhibition can maintain spectrin β II integrity and cellular cytoskeleton structure.

E-64

66701-25-5sc-201276
sc-201276A
sc-201276B
5 mg
25 mg
250 mg
$281.00
$947.00
$1574.00
14
(0)

E-64 is an irreversible cysteine protease inhibitor, potentially preventing the proteolytic degradation of spectrin β II by such enzymes, thus stabilizing the spectrin-actin network.

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 affecting calcium-dependent proteases involved in spectrin β II degradation.

Marimastat

154039-60-8sc-202223
sc-202223A
sc-202223B
sc-202223C
sc-202223E
5 mg
10 mg
25 mg
50 mg
400 mg
$168.00
$218.00
$404.00
$629.00
$4900.00
19
(1)

Marimastat is a broad-spectrum matrix metalloprotease (MMP) inhibitor, which may prevent the degradation of the extracellular matrix and indirectly stabilize spectrin β II attachment and function.

Leupeptin hemisulfate

103476-89-7sc-295358
sc-295358A
sc-295358D
sc-295358E
sc-295358B
sc-295358C
5 mg
25 mg
50 mg
100 mg
500 mg
10 mg
$73.00
$148.00
$316.00
$499.00
$1427.00
$101.00
19
(3)

Leupeptin, Hemisulfate is an inhibitor of serine and cysteine proteases, which could help in preventing the breakdown of spectrin β II, thereby affecting the cytoskeletal architecture.

Z-VAD-FMK

187389-52-2sc-3067
500 µg
$75.00
256
(6)

Z-VAD-FMK is a pan-caspase inhibitor, which can prevent apoptotic breakdown of cellular proteins, including spectrin β II, thus preserving cell structure.

Cytochalasin D

22144-77-0sc-201442
sc-201442A
1 mg
5 mg
$165.00
$486.00
64
(4)

Cytochalasin D disrupts actin filaments, which can alter the interaction with spectrin and influence the stability and function of spectrin β II in the cytoskeleton.

ML-7 hydrochloride

110448-33-4sc-200557
sc-200557A
10 mg
50 mg
$91.00
$267.00
13
(1)

ML-7 hydrochloride inhibits myosin light chain kinase, which can affect actin-myosin interactions and consequently impact spectrin β II's role in the maintenance of cell shape and mechanical integrity.

Phalloidin

17466-45-4sc-202763
1 mg
$234.00
33
(1)

Phalloidin stabilizes actin filaments and could alter their dynamics with spectrin β II, potentially affecting its distribution and function in cells.

Withaferin A

5119-48-2sc-200381
sc-200381A
sc-200381B
sc-200381C
1 mg
10 mg
100 mg
1 g
$130.00
$583.00
$4172.00
$20506.00
20
(1)

Withaferin A has been shown to bind to vimentin, potentially altering the intermediate filament network and thereby indirectly influencing spectrin β II's structural role.