Rabbit Polyclonal Phospho-Caspase-9 (S144) antibody (STJ90886)


Reactivity: Human
Applications: WB, IHC, ELISA
Conjugation: Unconjugated
Supplier: St John’s Laboratory Ltd.

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Rabbit Polyclonal Phospho-Caspase-9 (S144) antibody (STJ90886)

Supplier: St John’s Laboratory Ltd.

Recommended applications: WB, IHC, ELISA

Recommended dilution: WB 1:500-1:2000; IHC 1:100-1:300; ELISA 1:20000;

Recommended protocols: check protocols

Image descriptions:

Click or hover above images to see image description for Caspase-9 (phospho Ser144) Polyclonal Antibody.

Alternative names:

Check alternative names for the antibody


CASP9 antibody, MCH6 antibody,|APAF-3 antibody|Apoptotic protease Mch-6 antibody|Caspase 9 Dominant Negative antibody|Caspase 9c antibody|Caspase-9 antibody|Caspase-9 subunit p10 antibody|ICE LAP6 antibody|ICE like apoptotic protease 6 antibody|ICE-LAP6 antibody|ICE-like apoptotic protease 6 antibody|MCH6 antibody|PPP1R56 antibody|protein phosphatase 1, regulatory subunit 56 antibody|RNCASP9 antibody|Anti-Caspase-9 antibody [E23] (ab32539)
SCBT cat No: sc-81650|sc-56073|sc-70505|sc-70506|sc-70507|sc-56076|sc-81663|sc-81589|sc-73548|sc-56077|sc-8297|sc-17784|sc-7885|sc-133109|sc-8355|sc-374489|sc-373777|



Caspase-9 (phospho Ser144) Polyclonal Antibody

Catalogue No.





Phospho-Caspase-9 (S144) Polyclonal Antibody detects endogenous levels of Caspase-9 protein only when phosphorylated at S144.


Synthesized phospho-peptide derived from Caspase-9 (phospho Ser144) at AA range 80-160





Recommended dilution

WB 1:500-1:2000; IHC 1:100-1:300; ELISA 1:20000;







Molecular weight

35 kDa


Caspase-9 (phospho Ser144) Antibody was tube-contained. Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.


1 mg/ml


Caspase-9 (phospho Ser144) Antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.


-20 Celsius degree. Avoid repeated freeze/thaw cycles.

Alternative antibody names

Caspase-9 antibody, CASP-9 antibody, Apoptotic protease Mch-6 antibody, Apoptotic protease-activating factor 3 antibody, APAF-3 antibody, ICE-like apoptotic protease 6 antibody, ICE-LAP6 antibody

Database links

Human UniProt/Swiss-Prot:P55211;Mouse UniPort/Swiss-Prot: Q8C3Q9;Rat UniProt/Swiss-Port: Q9JHK1;Human Entrez Gene: 842;Mouse Entrez Gene: 12371;Rat Entrez Gene: Rn.32199

Protein names

Caspase-9 , CASP-9 , Apoptotic protease Mch-6 , Apoptotic protease-activating factor 3 , APAF-3 , ICE-like apoptotic protease 6 , ICE-LAP6

Protein function

Involved in the activation cascade of caspases responsible for apoptosis execution. Binding of caspase-9 to Apaf-1 leads to activation of the protease which then cleaves and activates caspase-3. Promotes DNA damage-induced apoptosis in a ABL1/c-Abl-dependent manner. Proteolytically cleaves poly(ADP-ribose) polymerase (PARP). / Isoform 2 lacks activity is an dominant-negative inhibitor of caspase-9. / Strict requirement for an Asp residue at position P1 and with a marked preference for His at position P2. It has a preferred cleavage sequence of Leu-Gly-His-Asp-, -Xaa. / Inhibited by the effector protein NleF that is produced by pathogenic E.coli; this inhibits apoptosis.

Protein tissue specificity

Ubiquitous, with highest expression in the heart, moderate expression in liver, skeletal muscle, and pancreas. Low levels in all other tissues. Within the heart, specifically expressed in myocytes.

Protein sequence and domain

Belongs to the peptidase C14A family. / Contains 1 CARD domain.

Protein post-translational modifications

Cleavages at Asp-315 by granzyme B and at Asp-330 by caspase-3 generate the two active subunits. Caspase-8 and -10 can also be involved in these processing events. / Phosphorylated at Thr-125 by MAPK1/ERK2. Phosphorylation at Thr-125 is sufficient to block caspase-9 processing and subsequent caspase-3 activation. Phosphorylation on Tyr-153 by ABL1/c-Abl; occurs in the response of cells to DNA damage.

Research area

All research areas>Tumor Suppressor/Apoptosis>Caspase
(View all antibody categories related to Tumor Suppressor/Apoptosis)


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St John’s Laboratory Ltd.

Product type

Primary antibody


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