Date published: 2026-4-24

1-800-457-3801

SCBT Portrait Logo
Seach Input

TAP2 Activators

TAP2 Activators represent a group of chemical compounds that enhance the activity of Transporter associated with Antigen Processing 2 (TAP2), playing a pivotal role in the immune system's antigen presentation mechanism. These activators, through their various actions, ensure the efficient functioning of TAP2. Zinc(II) Chloride, for example, directly influences TAP2 by stabilizing the TAP1/TAP2 complex, leading to an increased affinity for peptide substrates. This enhanced binding is critical for effective antigen processing, as TAP2 is responsible for translocating peptides into the endoplasmic reticulum for MHC class I molecule loading.

Further, other activators like Sodium Fluoride and Leupeptin indirectly bolster TAP2's role by maintaining a phosphorylation state conducive to its activity and inhibiting proteolytic enzymes, respectively, resulting in a surplus of peptides for TAP2 transport. Inhibitors of the proteasome, such as MG132, Epoxomicin, and Lactacystin, indirectly aid in TAP2 activation by increasing the cytosolic peptide pool, which is essential for antigen presentation. In contrast, Concanamycin A alters intracellular pH gradients, a condition that can enhance TAP2-mediated peptide transport.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Zinc

7440-66-6sc-213177
100 g
$48.00
(0)

Zinc(II) Chloride can enhance the functional activity of TAP2 by stabilizing the TAP1/TAP2 complex, increasing its affinity for peptide substrates and promoting the antigen presentation process.

Sodium Fluoride

7681-49-4sc-24988A
sc-24988
sc-24988B
5 g
100 g
500 g
$40.00
$46.00
$100.00
26
(4)

Sodium Fluoride can enhance TAP2 activity by inhibiting phosphatases that would otherwise dephosphorylate proteins involved in the antigen presentation pathway, maintaining a phosphorylation state that favors TAP2 function.

Brefeldin A

20350-15-6sc-200861C
sc-200861
sc-200861A
sc-200861B
1 mg
5 mg
25 mg
100 mg
$31.00
$53.00
$124.00
$374.00
25
(3)

Brefeldin A disrupts Golgi apparatus function, which can indirectly lead to an upregulation of TAP2 activity due to an increased need for peptides in the endoplasmic reticulum for MHC class I molecule loading.

Concanamycin A

80890-47-7sc-202111
sc-202111A
sc-202111B
sc-202111C
50 µg
200 µg
1 mg
5 mg
$66.00
$167.00
$673.00
$2601.00
109
(2)

Concanamycin A, by inhibiting the vacuolar type H+-ATPase, can alter the endosomal/lysosomal pH, potentially resulting in enhanced TAP2 activity due to a favorable peptide transport environment.

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 inhibits cysteine proteases, potentially leading to a cytosolic accumulation of peptides available for TAP2 transport, enhancing antigen processing.

MG-132 [Z-Leu- Leu-Leu-CHO]

133407-82-6sc-201270
sc-201270A
sc-201270B
5 mg
25 mg
100 mg
$60.00
$265.00
$1000.00
163
(3)

MG132 inhibits the proteasome, which can result in an increased pool of peptides for TAP2 transport, indirectly enhancing its antigen processing activity.

Epoxomicin

134381-21-8sc-201298C
sc-201298
sc-201298A
sc-201298B
50 µg
100 µg
250 µg
500 µg
$137.00
$219.00
$449.00
$506.00
19
(2)

Epoxomicin, similar to MG132, inhibits the proteasome, which can indirectly enhance TAP2 activity by increasing the availability of peptide substrates.

Lactacystin

133343-34-7sc-3575
sc-3575A
200 µg
1 mg
$188.00
$575.00
60
(2)

Lactacystin is a proteasome inhibitor that indirectly enhances TAP2 activity by increasing the availability of peptides for MHC class I loading.

Glyoxal, 40 % Solution

107-22-2sc-285868
sc-285868A
25 ml
50 ml
$89.00
$119.00
1
(0)

Glyoxal can modify peptides, potentially increasing their affinity for TAP2 and enhancing the efficiency of antigen processing and presentation.

Dimethyl Sulfoxide (DMSO)

67-68-5sc-202581
sc-202581A
sc-202581B
100 ml
500 ml
4 L
$31.00
$117.00
$918.00
136
(6)

Dimethyl Sulfoxide (DMSO) can increase membrane permeability, potentially enhancing the access of cytosolic peptides to the TAP2 complex and increasing its functional activity.