All Photos(2)



Anti-RB1 (Ab-780) 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

human, rat, 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)


Peptide sequence around aa. 778-782 (T-L-S-P-I), according to the protein RB1.

Features and Benefits

Evaluate our antibodies with complete peace of mind. If the antibody does not perform in your application, we will issue a full credit or replacement antibody. Learn more.

Target description

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.

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

12 - Non Combustible Liquids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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
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
S Munro et al.
Oncogene, 33(27), 3594-3603 (2013-08-13)
Transcription factor E2F-1 and its interaction with pRb provide a key point of control in cell proliferation. E2F-1 participates in both cell cycle progression and apoptosis, and in cells exists with a DP dimerization partner protein, the most prominent being
Tao Sun et al.
The Journal of clinical investigation, 124(9), 4123-4133 (2014-08-02)
The prevalence of brain tumors in males is common but unexplained. While sex differences in disease are typically mediated through acute sex hormone actions, sex-specific differences in brain tumor rates are comparable at all ages, suggesting that factors other than
David I Brown et al.
PloS one, 9(5), e96657-e96657 (2014-05-07)
Polymerase-δ interacting protein 2 (Poldip2) is an understudied protein, originally described as a binding partner of polymerase delta and proliferating cell nuclear antigen (PCNA). Numerous roles for Poldip2 have been proposed, including mitochondrial elongation, DNA replication/repair and ROS production via

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service