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Anti-RB1 (Ab-807) antibody produced in rabbit

affinity isolated antibody

Anti-p105-Rb antibody produced in rabbit, Anti-retinoblastoma 1 antibody produced in rabbit, Anti-RB antibody produced in rabbit, Anti-OSRC antibody produced in rabbit, Anti-pRb antibody produced in rabbit
MDL number:

biological source


Quality Level



antibody form

affinity isolated antibody

antibody product type

primary antibodies




buffered aqueous solution

mol wt

~110 kDa

species reactivity

rat, human, mouse


1 mg/mL


immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:50-1:100
western blot: 1:500-1:1000



immunogen sequence


NCBI accession no.

UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... RB1(5925)

General description

The gene encoding Retinoblastoma-associated protein (RB1) is a tumor suppressor gene localized on human chromosome 13q14.2.


Peptide sequence around aa. 805-809 (Y-I-S-P-L), according to the protein RB1.

Biochem/physiol Actions

Retinoblastoma-associated protein (RB1) modulates the cell cycle. It acts as a repressor of transcription mediated by E2 factor (E2F) and influences transcriptional silencing. RB1 modulates mitochondrial activities and has a role in the organisation of heterochromatin. Mutations in the gene encoding this protein have been associated with childhood retinoblastoma.

Features and Benefits

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Target description

Rb operates in the midst of the cell cycle clock apparatus. Its main role is to act as a signal transducer connecting the cell cycle clock with the transcriptional machinery (Ref.1). It plays an important role in the Rb/ E2F pathway in cell proliferation, cell fate determination, and cancer (Ref.2). Cellular senescence is a stable form of cell cycle arrest that limits proliferation of damaged cells and act as a natural barrier to cancer progression. A distinct heterochromatic structure that accumulates in senescent human fibroblasts, designated as SAHF (Senescence-Associated Heterochromatic Foci). SAHF formation coincides with recruitment of heterochromatin proteins and the Rb protein to E2F-responsive promoters and is associated with the stable repression of E2F target genes. Both SAHF formation and the silencing of E2F target genes depended on the integrity of the Rb pathway and do not occur in reversibly arrested cells (Ref.3). Rb activates transcription of the c-Jun gene through the SP1-binding site within the c-Jun promoter.

Physical form

Solution in phosphate-buffered saline containing 0.02% sodium azide and 50% glycerol


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 Class Code

10 - Combustible liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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Diane A J van der Biessen et al.
Clinical cancer research : an official journal of the American Association for Cancer Research, 20(18), 4776-4783 (2014-07-16)
RGB-286638 is a multitargeted inhibitor with targets comprising the family of cyclin-dependent kinases (CDK) and a range of other cancer-relevant tyrosine and serine/threonine kinases. The objectives of this first in human trial of RGB-286638, given i.v. on days 1 to
Deficiencies in Cellular Processes Modulated by the Retinoblastoma Protein Do Not Account for Reduced Human Cytomegalovirus Replication in Its Absence.
VanDeusen HR and Kalejta RF
Journal of Virology, 89(23), 11965-11974 (2015)
Erica P Cai et al.
Diabetologia, 57(12), 2555-2565 (2014-09-25)
Diabetes mellitus is characterised by beta cell loss and alpha cell expansion. Analogues of glucagon-like peptide-1 (GLP-1) are used therapeutically to antagonise these processes; thus, we hypothesised that the related cell cycle regulators retinoblastoma protein (Rb) and p107 were involved
Frequent deletions at 11q23 and 13q14 in B cell prolymphocytic leukemia (B-PLL).
Lens D
Leukemia, 14(3), 427-430 (2000)
Saeeda Kalsoom et al.
Molecular vision, 21, 1085-1092 (2015-09-24)
Retinoblastoma (RB) is a rare intraocular malignant tumor of the developing retina with an estimated incidence of 1:20,000 live births in children under the age of 5 years. In addition to the abnormal whitish appearance of the pupil or leukocoria

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