DATASHEET
Host:
Rabbit
Target Protein:
TP53
Modification Site:
S392
Clonality:
Recombinant
Isotype:
IgG
Entrez Gene:
7157
Swiss Prot:
P04637
Source:
KLH conjugated Synthesised phosphopeptide derived from human TP53 around the phosphorylation site of Ser392:PD(p-S)D.
Purification:
Purified by Protein A.
Storage Buffer:
0.01M TBS(pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.
Storage:
Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.
Background:
Acts as a tumor suppressor in many tumor types; induces growth arrest or apoptosis depending on the physiological circumstances and cell type. Involved in cell cycle regulation as a trans-activator that acts to negatively regulate cell division by controlling a set of genes required for this process. One of the activated genes is an inhibitor of cyclin-dependent kinases. Apoptosis induction seems to be mediated either by stimulation of BAX and FAS antigen expression, or by repression of Bcl-2 expression. In cooperation with mitochondrial PPIF is involved in activating oxidative stress-induced necrosis; the function is largely independent of transcription. Induces the transcription of long intergenic non-coding RNA p21 (lincRNA-p21) and lincRNA-Mkln1. LincRNA-p21 participates in TP53-dependent transcriptional repression leading to apoptosis and seem to have to effect on cell-cycle regulation. Implicated in Notch signaling cross-over. Prevents CDK7 kinase activity when associated to CAK complex in response to DNA damage, thus stopping cell cycle progression. Isoform 2 enhances the transactivation activity of isoform 1 from some but not all TP53-inducible promoters. Isoform 4 suppresses transactivation activity and impairs growth suppression mediated by isoform 1. Isoform 7 inhibits isoform 1-mediated apoptosis.
VALIDATION IMAGES
Paraformaldehyde-fixed, paraffin embedded human gastric cancer; Antigen retrieval by boiling in sodium citrate buffer (pH6) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 30 minutes; Blocking buffer at 37°C for 20min; Antibody incubation with p53(S392) (3A1) Monoclonal Antibody at 1:50 overnight at 4°C, followed by a conjugated secondary and DAB staining.
Lane 1: Mouse Urinary bladder lysates; Lane 2: Rat Esophagus lysates; Lane 3: Human A549 cell lysates probed with p53(S392) (3A1) Monoclonal Antibody, Unconjugated (bsm-52182R) at 1:1000 dilution and 4˚C overnight incubation. Followed by conjugated secondary antibody incubation at 1:20000 for 60 min at 37˚C.