RB1 Antibody


Western Blot: Retinoblastoma 1 Antibody [NB100-92622] - Western blot (WB) analysis of Retinoblastoma I (S795) antibody in extracts from K562 cells treated with serum 10%.
Immunohistochemistry: Retinoblastoma 1 Antibody [NB100-92622] - Immunohistochemistry (IHC) analyzes of Retinoblastoma 1 Antibody (S795) in paraffin-embedded human breast carcinoma tissue.

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RB1 Antibody Summary

Synthetic phosphopeptide derived from human Rb around the phosphorylation site of Serine 795.
Immunogen affinity purified
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  • Western Blot 1:500-1:1000
  • Immunohistochemistry 1:50-1:200
  • Immunohistochemistry-Paraffin 1:50-1:200
Theoretical MW
106 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
Positive Control
RB1 Lysate (NBP2-64799)

Reactivity Notes

Human, Mouse, Rat.

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
PBS (pH 7.2)
0.05% Sodium Azide
1.0 mg/ml
Immunogen affinity purified

Alternate Names for RB1 Antibody

  • OSRC
  • osteosarcoma
  • p105-Rb
  • pp110
  • pRb
  • RB
  • RB1
  • retinoblastoma 1
  • retinoblastoma suspectibility protein
  • retinoblastoma-associated protein


Pediatric cancer retinoblastoma and the formation of other human tumors can be attributed to mutations in the retinoblastoma tumor suppressor gene. The retinoblastoma tumor suppressor gene product, known as Rb or pRb, regulates differentiation, apoptosis and cell cycle control by coordinating the cell cycle, at G1-S, with transcriptional machinery that includes the heterodimeric E2F family. During G1, cyclin D (D1, 2, 3)-dependent kinase-mediated phosphorylation of Rb at Ser 795 marks the conversion of Rb from a transcriptionally repressive, hypophosphorylated state to an inactive, phosphorylated which may be sustained through mitosis by differential phosphorylation of state, up to 16 putative serine or threonine residues, including Ser 249/Thr 252, Thr 373, Thr 356, Ser 780, Ser 807/Ser 811 and Thr 821/Thr 826. Hypophosphorylated Rb represses the transcription of genes controlling cell cycle through direct protein-protein interactions, by binding and inactivating the promoters of transcription factors, and through recruitment of histone deacetylase, which deacetylates promoter regions and enhances nucleosome formation, thereby masking transcription enhancing cis elements.


This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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Product General Protocols

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Video Protocols

WB Video Protocol

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Positive Control Lysate(s)

Secondary Antibodies


Isotype Controls

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Bioinformatics Tool for RB1 Antibody (NB100-92622)

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Gene Symbol RB1