Rabbit anti-Human, Mouse Rb Polyclonal Antibody | anti-RB1 antibody

Phospho-Rb (Ser780) Rabbit pAb

Cat. Num. AAA4752218

• Gene Names: RB1; RB; pRb; OSRC; pp110; p105-Rb
• Reactivity: Human, Mouse
• Applications: Western Blot, Immunoprecipitation
• Purity: Affinity purified
• Synonyms: Rb; Polyclonal Antibody; Phospho-Rb (Ser780) Rabbit pAb; Retinoblastoma-associated protein; RB; pRb; OSRC; pp110; p105-Rb; PPP1R130; anti-RB1 antibody

• Host: Rabbit
• Reactivity: Human, Mouse
• Clonality: Polyclonal
• Isotype: Rabbit IgG
• Specificity: Expressed in the retina. Gene expression databases
• Purity/Purification: Affinity purified
• Form/Format: Supplied in 50nM Tris-Glycine (pH7.4), 0.15M Nacl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.

• Applicable Applications for anti-RB1 antibody: Western Blot (WB), Immunoprecipitation (IP)
• Application Notes: WB: 1:1000; IP: 1:20
• Immunogen: A synthetic phosphopeptide corresponding to residues surrounding Ser780 of human Rb
• Conjugation: Unconjugated
• Modification: Phosphoralated
• Subcellular Location: Nucleus
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Western Blot (WB)

(Western blot detection of Phospho-Rb (Ser780) in K562,C6 cell lysates using Phospho-Rb (Ser780) Rabbit pAb(1:1000 diluted). Predicted band size:106kDa. Observed band size:110kDa.)

Related Product Information for anti-RB1 antibody

The protein encoded by this gene is a negative regulator of the cell cycle and was the first tumor suppressor gene found. The encoded protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1. Defects in this gene are a cause of childhood cancer retinoblastoma (RB), bladder cancer, and osteogenic sarcoma. [provided by RefSeq, Jul 2008]
Key regulator of entry into cell division that acts as a tumor suppressor. Promotes G0-G1 transition when phosphorylated by CDK3/cyclin-C. 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, KMT5B and KMT5C, leading to epigenetic transcriptional repression. Controls histone H4 'Lys-20' trimethylation. Inhibits the intrinsic kinase activity of TAF1. Mediates transcriptional repression by SMARCA4/BRG1 by recruiting a histone deacetylase (HDAC) complex to the c-FOS promoter. In resting neurons, transcription of the c-FOS promoter is inhibited by BRG1-dependent recruitment of a phospho-RB1-HDAC1 repressor complex. Upon calcium influx, RB1 is dephosphorylated by calcineurin, which leads to release of the repressor complex.

NCBI and Uniprot Product Information

• NCBI GI #: 108773787
• NCBI GeneID: 5925
• NCBI Accession #: NP_000312.2
• NCBI GenBank Nucleotide #: NM_000321.2
• UniProt Accession #: P06400; P78499; Q5VW46; Q8IZL4; A8K5E3
• Molecular Weight: 106,159 Da
• NCBI Official Full Name: retinoblastoma-associated protein
• NCBI Official Synonym Full Names: retinoblastoma 1
• NCBI Official Symbol: RB1
• NCBI Official Synonym Symbols: RB; pRb; OSRC; pp110; p105-Rb
• NCBI Protein Information: retinoblastoma-associated protein; retinoblastoma suspectibility protein
• UniProt Protein Name: Retinoblastoma-associated protein
• Protein Family: RBBP8 N-terminal-like protein
• UniProt Gene Name: RB1
• UniProt Synonym Gene Names: Rb
• UniProt Entry Name: RB_HUMAN

NCBI Description

The protein encoded by this gene is a negative regulator of the cell cycle and was the first tumor suppressor gene found. The encoded protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1. Defects in this gene are a cause of childhood cancer retinoblastoma (RB), bladder cancer, and osteogenic sarcoma. [provided by RefSeq, Jul 2008]

Uniprot Description

Rb: retinoblastoma tumor suppressor protein regulates cell proliferation by controlling progression through the G1-phase restriction point. Has three distinct binding domains and interacts with regulatory proteins including the E2F family of transcription factors, c-Abl tyrosine kinase and proteins with a conserved LXCXE motif. Cell cycle-dependent phosphorylation by Cdks inhibits Rb target binding, thus allowing cell cycle progression. Recruits and targets histone methyltransferase suv39h1 leading to epigenetic transcriptional repression.

Protein type: Transcription, coactivator/corepressor; Oncoprotein; Nuclear receptor co-regulator; Tumor suppressor

Chromosomal Location of Human Ortholog: 13q14.2

Cellular Component: nucleoplasm; SWI/SNF complex; PML body; Rb-E2F complex; spindle; chromatin; nucleus

Molecular Function: identical protein binding; protein binding; androgen receptor binding; DNA binding; ubiquitin protein ligase binding; transcription coactivator activity; phosphoprotein binding; kinase binding; transcription factor binding; transcription factor activity

Biological Process: sister chromatid biorientation; viral reproduction; positive regulation of transcription, DNA-dependent; negative regulation of transcription from RNA polymerase II promoter, mitotic; regulation of mitotic cell cycle; neuron maturation; positive regulation of macrophage differentiation; cell cycle arrest; neurite development; negative regulation of epithelial cell proliferation; transcription, DNA-dependent; mitotic cell cycle checkpoint; negative regulation of transcription factor activity; regulation of lipid kinase activity; enucleate erythrocyte differentiation; G1/S-specific transcription in mitotic cell cycle; chromatin remodeling; myoblast differentiation; neuron apoptosis; maintenance of mitotic sister chromatid cohesion; gut development; cell division; neuron morphogenesis during differentiation; negative regulation of smoothened signaling pathway; androgen receptor signaling pathway; Ras protein signal transduction; positive regulation of mitotic metaphase/anaphase transition; negative regulation of protein kinase activity; striated muscle cell differentiation; positive regulation of transcription from RNA polymerase II promoter; mitotic cell cycle; negative regulation of transcription, DNA-dependent; cell cycle checkpoint; G1/S transition of mitotic cell cycle

Disease: Bladder Cancer; Osteogenic Sarcoma; Small Cell Cancer Of The Lung; Retinoblastoma