Date published: 2026-2-14

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RPIB9 Activators

RPIB9 Activators are a diverse array of chemical compounds that each, through their own specific mechanisms, serve to enhance the functional activity of RPIB9. Compounds such as Forskolin and Ionomycin directly increase intracellular levels of second messengers-cAMP and calcium, respectively-which can activate kinase pathways like PKA and calcium-dependent kinases. These kinases then enhance RPIB9 function by promoting post-translational modifications or facilitating interactions with other proteins essential for its role in RNA processing. Similarly, PMA activates PKC, which can phosphorylate proteins that interact with RPIB9, potentially enhancing its RNA processing capabilities. EGCG, through its kinase inhibition, can indirectly bolster RPIB9's activity by reducing regulation through competitive phosphorylation, whereas LY294002 and U0126alter PI3K/AKT and MAPK/ERK pathways, leading to changes in the phosphorylation patterns of proteins in RPIB9's signaling network. This altered signaling milieu may favor RPIB9's role in transcriptional regulation by RNA polymerase III.

Furthermore, compounds like PD98059, SB203580, and A23187 work through targeted inhibition of kinases such as MEK and p38 MAPK or by modulating intracellular calcium levels, which could shift cellular signaling dynamics to enhance RPIB9's transcriptional regulation functions. Inhibition of protein phosphatases by Okadaic Acid and Calyculin A prevents the dephosphorylation of proteins within RPIB9's pathways, which could indirectly support RPIB9 activity by maintaining a phosphorylation state that favors its functional role. Anisomycin, by activating stress response pathways such as JNK, may not only promote a cellular environment that necessitates robust RNA processing but also fosters RPIB9's involvement in managing the cellular stress response. Collectively, these activators work through a synergy of intracellular signaling alterations to fortify the functional activity of RPIB9, showcasing a complex web of regulation that enhances its role in the cell without directly increasing its expression levels or requiring direct activation.

SEE ALSO...

Items 1 to 10 of 12 total

Display:

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Forskolin

66575-29-9sc-3562
sc-3562A
sc-3562B
sc-3562C
sc-3562D
5 mg
50 mg
1 g
2 g
5 g
$78.00
$153.00
$740.00
$1413.00
$2091.00
73
(3)

Forskolin directly raises intracellular cAMP levels, which can lead to the activation of PKA. PKA then phosphorylates various substrates that can enhance the functional activity of RPIB9 by promoting its role in RNA processing.

Ionomycin

56092-82-1sc-3592
sc-3592A
1 mg
5 mg
$78.00
$270.00
80
(4)

Ionomycin is a selective calcium ionophore that increases intracellular calcium levels. Elevated calcium can activate calcium-dependent protein kinases, which may then enhance RPIB9's function in RNA biogenesis by facilitating required conformational changes or interactions with other proteins involved in this pathway.

PMA

16561-29-8sc-3576
sc-3576A
sc-3576B
sc-3576C
sc-3576D
1 mg
5 mg
10 mg
25 mg
100 mg
$41.00
$132.00
$214.00
$500.00
$948.00
119
(6)

PMA directly activates protein kinase C (PKC), which is involved in a wide array of cellular signaling pathways. The activation of PKC can lead to subsequent phosphorylation of proteins that interact with RPIB9, potentially enhancing its RNA processing capabilities.

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

EGCG is a known inhibitor of various protein kinases. By inhibiting competitive signaling pathways, EGCG may indirectly enhance the functional activity of RPIB9 through reducing phosphorylation-based regulation that otherwise attenuates RPIB9's activity.

LY 294002

154447-36-6sc-201426
sc-201426A
5 mg
25 mg
$123.00
$400.00
148
(1)

LY294002 is a PI3K inhibitor that can alter the PI3K/AKT signaling pathway. This can lead to altered phosphorylation states of proteins that interact with or modulate the activity of RPIB9, possibly enhancing its functional role in the cell.

U-0126

109511-58-2sc-222395
sc-222395A
1 mg
5 mg
$64.00
$246.00
136
(2)

U0126 is a selective inhibitor of MEK1/2, which are part of the MAPK/ERK pathway. By inhibiting this pathway, U0126 may shift the balance of cellular signaling to favor pathways that indirectly upregulate RPIB9's activity in RNA polymerase III transcription.

PD 98059

167869-21-8sc-3532
sc-3532A
1 mg
5 mg
$40.00
$92.00
212
(2)

PD98059 is another MEK inhibitor that functions similarly to U0126, potentially enhancing the activity of RPIB9 by shifting cellular signaling towards pathways that involve RPIB9's role in transcriptional regulation.

SB 203580

152121-47-6sc-3533
sc-3533A
1 mg
5 mg
$90.00
$349.00
284
(5)

SB203580 is a specific inhibitor of p38 MAP kinase. By inhibiting p38 MAPK signaling, SB203580 could diminish competing pathways and thereby indirectly enhance the functional activity of RPIB9 related to its transcriptional regulation functions.

A23187

52665-69-7sc-3591
sc-3591B
sc-3591A
sc-3591C
1 mg
5 mg
10 mg
25 mg
$55.00
$131.00
$203.00
$317.00
23
(1)

A23187 is a calcium ionophore that increases intracellular calcium levels, which can activate calcium-dependent kinases and phosphatases. These enzymes may influence the activity of RPIB9 by altering the phosphorylation state of proteins in pathways where RPIB9 is involved.

Okadaic Acid

78111-17-8sc-3513
sc-3513A
sc-3513B
25 µg
100 µg
1 mg
$291.00
$530.00
$1800.00
78
(4)

Okadaic Acid is a potent inhibitor of protein phosphatases 1 and 2A, leading to increased phosphorylation levels within the cell. This may enhance the activity of RPIB9 by preventing dephosphorylation of proteins that are part of RPIB9's functional pathway in RNA processing.