Rb (RB1) Rabbit Polyclonal Antibody

CAT#: TA385136

Phospho-Rb (Ser780) Rabbit polyclonal Antibody

Product Images

Western Blot analysis of various cells using Phospho-Rb (S780) Polyclonal Antibody cells nucleus extracted by Minute TM Cytoplasmic and Nuclear Fractionation kit (SC-003,Inventbiotech,MN,USA).

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  Western Blot analysis of KB cells using Phospho-Rb (S780) Polyclonal Antibody cells nucleus extracted by Minute TM Cytoplasmic and Nuclear Fractionation kit (SC-003,Inventbiotech,MN,USA).

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  Immunohistochemistry analysis of paraffin-embedded human breast carcinoma, using Retinoblastoma (Phospho-Ser78) Antibody. The picture on the right is blocked with the phospho peptide.

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  Western blot analysis of lysates from K562 cells treated with serum 10%, using Retinoblastoma (Phospho-Ser780) Antibody. The lane on the right is blocked with the phospho peptide.

Specifications

Product Data

• Applications: ELISA, IF, IHC, WB
• Recommended Dilution: WB: 1/500-1/2000
  IHC: 1/100-1/300
  IF: 1/200-1/1000
  ELISA: 1/10000
• Reactivities: Human, Mouse, Rat
• Host: Rabbit
• Isotype: IgG
• Clonality: Polyclonal
• Immunogen: The antiserum was produced against synthesized peptide derived from human Retinoblastoma around the phosphorylation site of Ser780. AA range:751-800 (Phosphorylated)
• Formulation: Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide, pH 7.3.
• Concentration: lot specific
• Purification: Affinity Chromatography
• Conjugation: Unconjugated
• Storage: Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze/thaw cycles.
• Stability: 1 year
• Predicted Protein Size: Observed MW (kDa):106
• Gene Name: RB transcriptional corepressor 1
• Database Link:
  Entrez Gene 5925 Human
  UniProt ID P06400
• Background: Swiss-Prot Acc.P06400.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 .
• Synonyms: OSRC; osteosarcoma; p105-Rb; pp110; pRb; RB