Retinoblastoma 1 (RB1) (pSer807) antibody

Details for Product No. ABIN362115
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Antigen
Synonyms RB1, OSRC, RB, p105-Rb, pRb, pp110, Rb, Rb-1, zgc:154147, P105-RB, PP110, RB11
Epitope
pSer807
(32), (31), (27), (21), (19), (19), (17), (17), (17), (14), (12), (5), (5), (3), (2), (2), (2), (2), (2), (2), (2), (2), (2), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1), (1)
Reactivity
Human, Mouse (Murine), Rat (Rattus)
(339), (226), (214), (109), (85), (65), (48), (7), (1), (1), (1)
Host
Rabbit
(298), (54), (2)
Clonality
Polyclonal
Conjugate
Un-conjugated
(10), (10), (10), (10), (10), (10), (10), (10), (10), (10), (10)
Application
Western Blotting (WB), Immunohistochemistry (IHC)
(212), (100), (93), (88), (80), (34), (31), (18), (11), (7), (2), (1)
Pubmed 5 references available
Quantity 50 µL
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Catalog No. ABIN362115
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Immunogen Peptide sequence around phosphorylation site of pSer807 (Y-I-S (p) -P-L) derived from Human Rb. Antibodies were produced by immunizing rabbits with synthetic phosphopeptide and KLH conjugates.
Isotype IgG
Specificity The antibody detects endogenous level of Rb only when phosphorylated at serine 807.
Purification The antibody was affinity-purified from rabbit antiserum by affinity-chromatography usingepitope-specific phosphopeptide. The antibody against non-phosphopeptide was removedby chromatography using non-phosphopeptide corresponding to the phosphorylation site.
Alternative Name Rb
Background Key regulator of entry into cell division that acts as a tumor suppressor. Acts as a transcription repressor of E2F1 target genes. The underphosphorylated, active form of RB1 interacts with E2F1 and represses its transcription activity, leading to cell cycle arrest. Directly involved in heterochromatin formation by maintaining overall chromatin structure and, in particular, that of constitutive heterochromatin by stabilizing histone methylation. Recruits and targets histone methyltransferases SUV39H1, SUV420H1 and SUV420H2, leading to epigenetic transcriptional repression. Controls histone H4 'Lys-20' trimethylation. Inhibits the intrinsic kinase activity of TAF1. In case of viral infections, interactions with SV40 large T antigen, HPV E7 protein or adenovirus E1A protein induce the disassembly of RB1-E2F1 complex thereby disrupting RB1's activity.
Molecular Weight 110 kDa
NCBI Accession NP_000312
UniProt P06400
Research Area Cancer, Transcription Factors
Application Notes Western blotting: 1:500-1:1000
Immunohistochemistry: 1:50-1:100
Restrictions For Research Use only
Format Liquid
Concentration 1 mg/mL
Buffer Phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150 mM NaCl, 0.02 % sodium azide and 50 % glycerol.
Preservative Sodium azide
Precaution of Use This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage 4 °C/-20 °C
Storage Comment Store at -20 °C for long term preservation (recommended). Store at 4 °C for short term use.
Background publications Knudsen, Wang: "Differential regulation of retinoblastoma protein function by specific Cdk phosphorylation sites." in: The Journal of biological chemistry, Vol. 271, Issue 14, pp. 8313-20, 1996 (PubMed).

Knudsen, Wang: "Dual mechanisms for the inhibition of E2F binding to RB by cyclin-dependent kinase-mediated RB phosphorylation." in: Molecular and cellular biology, Vol. 17, Issue 10, pp. 5771-83, 1997 (PubMed).

Chadee, Kyriakis: "MLK3 is required for mitogen activation of B-Raf, ERK and cell proliferation." in: Nature cell biology, Vol. 6, Issue 8, pp. 770-6, 2004 (PubMed).

Roesch, Becker, Meyer et al.: "Overexpression and hyperphosphorylation of retinoblastoma protein in the progression of malignant melanoma." in: Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, Vol. 18, Issue 4, pp. 565-72, 2005 (PubMed).

Al-Minawi, Saleh-Gohari, Helleday: "The ERCC1/XPF endonuclease is required for efficient single-strand annealing and gene conversion in mammalian cells." in: Nucleic acids research, Vol. 36, Issue 1, pp. 1-9, 2008 (PubMed).

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