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MABE199 Anti-phospho-p53 (Ser33) Antibody, clone EP2393Y, rabbit monoclonal

MABE199
100 µL  
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      Overview

      Replacement Information

      Key Specifications Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      HWB, ICCRbDiluted Culture SupernatantMonoclonal Antibody
      Description
      Catalogue NumberMABE199
      DescriptionAnti-phospho-p53 (Ser33) Antibody, clone EP2393Y, rabbit monoclonal
      Alternate Names
      • tumor protein p53
      • Phosphoprotein p53
      • Antigen NY-CO-13
      • cellular tumor antigen p53
      • transformation-related protein 53
      • p53 tumor suppressor
      • Tumor suppressor p53
      Background Informationp53 acts as both a tumor-suppressor and transcription factor that, upon activation by DNA damage and other cellular stress signals, leads to the transcription of genes triggering cell-cycle arrest, apoptosis, and DNA repair (1,2). The gene for the nuclear phosphoprotein p53 is the most commonly mutated gene yet identified in human cancers (3). p53 is frequently mutated or inactivated in about 60% of cancers (4,5). Cyclin dependent kinase 9, whose well-known substrate is RNA polymerase II, can also phosphorylate p53, more specifically, Ser33 on the N-terminus and, Ser315 and Ser392 on the C-terminus (6).
      References
      Product Information
      FormatDiluted Culture Supernatant
      Control
      • Etoposide treated and untreated T47D cell lysates
      PresentationRabbit Monoclonal in buffer containing 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl containing 40% Glycerol, 0.01% sodium azide and 0.05% BSA.
      Applications
      ApplicationAnti-phospho-p53 (Ser33) Antibody, clone EP2393Y is a rabbit monoclonal antibody for detection of phospho-p53 (Ser33) also known as Phosphoprotein p53, Antigen NY-CO-13, cellular tumor antigen p53 & has been validated in WB, ICC.
      Key Applications
      • Western Blotting
      • Immunocytochemistry
      Application NotesImmunocytochemistry Analysis: 1:100 dilution from a representative lot detected p53 in A431 cells.
      Biological Information
      ImmunogenPhospho specific peptide corresponding to human p53 phosphorylated at Ser33.
      EpitopePhosphorylated Ser53
      CloneEP2393Y
      HostRabbit
      SpecificityThis antibody recognizes p53 phosphorylated at Ser33.
      IsotypeIgG
      Species Reactivity
      • Human
      Antibody TypeMonoclonal Antibody
      Gene Symbol
      • LFS1
      • P53
      • p53
      • TRP53
      • FLJ92943
      • OTTHUMP00000221340
      Modifications
      • Phosphorylation
      Purification MethodUnpurified
      UniProt Number
      UniProt SummaryFUNCTION: 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. Implicated in Notch signaling cross-over. 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.
      COFACTOR: Binds 1 zinc ion per subunit.
      SUBUNIT STRUCTURE: Interacts with AXIN1. Probably part of a complex consisting of TP53, HIPK2 and AXIN1 By similarity. Binds DNA as a homotetramer. Interacts with histone acetyltransferases EP300 and methyltransferases HRMT1L2 and CARM1, and recruits them to promoters. In vitro, the interaction of TP53 with cancer-associated/HPV (E6) viral proteins leads to ubiquitination and degradation of TP53 giving a possible model for cell growth regulation. This complex formation requires an additional factor, E6-AP, which stably associates with TP53 in the presence of E6. Interacts (via C-terminus) with TAF1; when TAF1 is part of the TFIID complex. Interacts with ING4; this interaction may be indirect. Found in a complex with CABLES1 and TP73. Interacts with HIPK1, HIPK2, and P53DINP1. Interacts with WWOX. May interact with HCV core protein. Interacts with USP7 and SYVN1. Interacts with HSP90AB1. Interacts with CHD8; leading to recruit histone H1 and prevent transactivation activity By similarity. Interacts with ARMC10, BANP, CDKN2AIP and E4F1. Interacts with YWHAZ; the interaction enhances TP53 transcriptional activity. Phosphorylation of YWHAZ on 'Ser-58' inhibits this interaction. Interacts (via DNA-binding domain) with MAML1 (via N-terminus). Interacts with MKRN1. Interacts with PML (via C-terminus). Interacts with MDM2; leading to ubiquitination and proteasomal degradation of TP53. Directly interacts with FBXO42; leading to ubiquination and degradation of TP53. Interacts (phosphorylated at Ser-15 by ATM) with the phosphatase PP2A-PPP2R5C holoenzyme; regulates stress-induced TP53-dependent inhibition of cell proliferation. Interacts with PPP2R2A. Interacts with DAXX, BRD7 and TRIM24. Interacts (when monomethylated at Lys-382) with L3MBTL1. Isoform 1 interacts with isoform 2 and with isoform 4.
      SUBCELLULAR LOCATION: Cytoplasm. Nucleus. Nucleus › PML body. Endoplasmic reticulum. Note: Interaction with BANP promotes nuclear localization. Recruited into PML bodies together with CHEK2.
      Isoform 1: Nucleus. Cytoplasm. Note: Predominantly nuclear but localizes to the cytoplasm when expressed with isoform 4.
      Isoform 2: Nucleus. Cytoplasm. Note: Localized mainly in the nucleus with minor staining in the cytoplasm.
      Isoform 3: Nucleus. Cytoplasm. Note: Localized in the nucleus in most cells but found in the cytoplasm in some cells.
      Isoform 4: Nucleus. Cytoplasm. Note: Predominantly nuclear but translocates to the cytoplasm following cell stress.
      Isoform 7: Nucleus. Cytoplasm. Note: Localized mainly in the nucleus with minor staining in the cytoplasm.
      Isoform 8: Nucleus. Cytoplasm. Note: Localized in both nucleus and cytoplasm in most cells. In some cells, forms foci in the nucleus that are different from nucleoli.
      Isoform 9: Cytoplasm
      TISSUE SPECIFICITY: Ubiquitous. Isoforms are expressed in a wide range of normal tissues but in a tissue-dependent manner. Isoform 2 is expressed in most normal tissues but is not detected in brain, lung, prostate, muscle, fetal brain, spinal cord and fetal liver. Isoform 3 is expressed in most normal tissues but is not detected in lung, spleen, testis, fetal brain, spinal cord and fetal liver. Isoform 7 is expressed in most normal tissues but is not detected in prostate, uterus, skeletal muscle and breast. Isoform 8 is detected only in colon, bone marrow, testis, fetal brain and intestine. Isoform 9 is expressed in most normal tissues but is not detected in brain, heart, lung, fetal liver, salivary gland, breast or intestine.
      INDUCTION: Up-regulated in response to DNA damage. Isoform 2 is not induced in tumor cells in response to stress.
      DOMAIN: The nuclear export signal acts as a transcriptional repression domain.
      PTM: Acetylated. Acetylation of Lys-382 by CREBBP enhances transcriptional activity. Deacetylation of Lys-382 by SIRT1 impairs its ability to induce proapoptotic program and modulate cell senescence.
      Phosphorylation on Ser residues mediates transcriptional activation. Phosphorylated by HIPK1 By similarity. Phosphorylation at Ser-9 by HIPK4 increases repression activity on BIRC5 promoter. Phosphorylated on Thr-18 by VRK1. Phosphorylated on Ser-20 by CHEK2 in response to DNA damage, which prevents ubiquitination by MDM2. Phosphorylated on Thr-55 by TAF1, which promotes MDM2-mediated degradation. Phosphorylated on Ser-46 by HIPK2 upon UV irradiation. Phosphorylation on Ser-46 is required for acetylation by CREBBP. Phosphorylated on Ser-392 following UV but not gamma irradiation. Phosphorylated upon DNA damage, probably by ATM or ATR. Phosphorylated on Ser-15 upon ultraviolet irradiation; which is enhanced by interaction with BANP.
      Dephosphorylated by PP2A-PPP2R5C holoenzyme at Thr-55. SV40 small T antigen inhibits the dephosphorylation by the AC form of PP2A.
      May be O-glycosylated in the C-terminal basic region. Studied in EB-1 cell line.
      Ubiquitinated by MDM2 and SYVN1, which leads to proteasomal degradation. Ubiquitinated by RFWD3, which works in cooperation with MDM2 and may catalyze the formation of short polyubiquitin chains on p53/TP53 that are not targeted to the proteasome. Ubiquitinated by MKRN1 at Lys-291 and Lys-292, which leads to proteasomal degradation. Deubiquitinated by USP10, leading to its stabilization. Ubiquitinated by TRIM24, which leads to proteasomal degradation. Ubiquitination by TOPORS induces degradation. Deubiquitination by USP7, leading to stabilization. Isoform 4 is monoubiquitinated in an MDM2-independent manner.
      Monomethylated at Lys-372 by SETD7, leading to stabilization and increased transcriptional activation. Monomethylated at Lys-370 by SMYD2, leading to decreased DNA-binding activity and subsequent transcriptional regulation activity. Lys-372 monomethylation prevents interaction with SMYD2 and subsequent monomethylation at Lys-370. Dimethylated at Lys-373 by EHMT1 and EHMT2. Monomethylated at Lys-382 by SETD8, promoting interaction with L3MBTL1 and leading to repress transcriptional activity. Demethylation of dimethylated Lys-370 by KDM1A prevents interaction with TP53BP1 and represses TP53-mediated transcriptional activation.
      Sumoylated by SUMO1.
      INVOLVEMENT IN DISEASE: Note=TP53 is found in increased amounts in a wide variety of transformed cells. TP53 is frequently mutated or inactivated in about 60% of cancers. TP53 defects are found in Barrett metaplasia a condition in which the normally stratified squamous epithelium of the lower esophagus is replaced by a metaplastic columnar epithelium. The condition develops as a complication in approximately 10% of patients with chronic gastroesophageal reflux disease and predisposes to the development of esophageal adenocarcinoma.
      Defects in TP53 are a cause of esophageal cancer (ESCR) [MIM:133239].
      Defects in TP53 are a cause of Li-Fraumeni syndrome (LFS) [MIM:151623]. LFS is an autosomal dominant familial cancer syndrome that in its classic form is defined by the existence of a proband affected by a sarcoma before 45 years with a first degree relative affected by any tumor before 45 years and another first degree relative with any tumor before 45 years or a sarcoma at any age. Other clinical definitions for LFS have been proposed (Ref.138 and Ref.141) and called Li-Fraumeni like syndrome (LFL). In these families affected relatives develop a diverse set of malignancies at unusually early ages. Four types of cancers account for 80% of tumors occurring in TP53 germline mutation carriers: breast cancers, soft tissue and bone sarcomas, brain tumors (astrocytomas) and adrenocortical carcinomas. Less frequent tumors include choroid plexus carcinoma or papilloma before the age of 15, rhabdomyosarcoma before the age of 5, leukemia, Wilms tumor, malignant phyllodes tumor, colorectal and gastric cancers.
      Defects in TP53 are involved in head and neck squamous cell carcinomas (HNSCC) [MIM:275355]; also known as squamous cell carcinoma of the head and neck.
      Defects in TP53 are a cause of lung cancer (LNCR) [MIM:211980].
      Defects in TP53 are a cause of choroid plexus papilloma (CPLPA) [MIM:260500]. Choroid plexus papilloma is a slow-growing benign tumor of the choroid plexus that often invades the leptomeninges. In children it is usually in a lateral ventricle but in adults it is more often in the fourth ventricle. Hydrocephalus is common, either from obstruction or from tumor secretion of cerebrospinal fluid. If it undergoes malignant transformation it is called a choroid plexus carcinoma. Primary choroid plexus tumors are rare and usually occur in early childhood.
      Defects in TP53 are a cause of adrenocortical carcinoma (ADCC) [MIM:202300]. ADCC is a rare childhood tumor of the adrenal cortex. It occurs with increased frequency in patients with the Beckwith-Wiedemann syndrome and is a component tumor in Li-Fraumeni syndrome.
      SEQUENCE SIMILARITIES: Belongs to the p53 family.
      Molecular Weight~53 kDa observed
      Physicochemical Information
      Dimensions
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blot in etoposide treated and untreated T47D cell lysates.
      Western Blot Analysis: 1:2,000 dilution of this antibody detected p53 in etoposide treated and untreated T47D cell lysates.
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at -20ºC from date of receipt. Handling Recommendations: Upon first thaw, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variability in freezer temperatures below
      -20°C may cause glycerol containing Solutions to become frozen during storage.
      Packaging Information
      Material Size100 µL
      Transport Information
      Supplemental Information
      Specifications

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      Categories

      Life Science Research > Antibodies and Assays > Primary Antibodies