Phospho-Rb (Ser780) Antibody (YA1030)(PBS only)

Cat. No.: HY-P81301AA: Data Sheet User Guide for Antibodies
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Phospho-Rb (Ser780) Antibody (YA1030) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Phospho-Rb (Ser780).

For research use only. We do not sell to patients.

Size		Stock
50 μL		Get quote
100 μL		Get quote

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WB: Western Blot;
IHC-P: Immunohistochemistry-Paraffin;
IHC-F: Immunohistochemistry-Frozen;
ICC/IF: Immunocytochemistry/Immunofluorescence;
IF-Tissue: Immunofluorescence-Tissue;
mIHC: Multiplex Immunohistochemical;
IP: Immunoprecipitation;
ChIP: Chromatin Immunoprecipitation;
FC: Flow Cytometry;
ELISA: Enzyme Linked Immunosorbent Assay

Product Detail
Background
Documentation

Description

Phospho-Rb (Ser780) Antibody (YA1030) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Phospho-Rb (Ser780).

Host

Rabbit

Molecular Weight

Predicted band size: 106 kDa;

Observed band size: 110 kDa

Note: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.

Species Reactivity

Human, Mouse

SwissProt ID

P06400

Gene ID

5925 [NCBI]

Immunogen

A synthetic phosphopeptide corresponding to residues surrounding Ser780 of human Rb

Application &
Dilution Ratio

Application	Dilution Ratio
WB WB: Western Blot	1:500-1:1000
IP IP: Immunoprecipitation	1:20-1:50

Purity	Affinity Purified	Conjugation	Non-conjugated
Isotype	IgG

Appearance

Liquid

Formulation

Supplied in PBS, pH 7.4.

Storage & Stability

Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.

Shipping

Shipping with blue ice.

Background

Function：Tumor suppressor that is a key regulator of the G1/S transition of the cell cycle (PubMed:10499802). The hypophosphorylated form binds transcription regulators of the E2F family, preventing transcription of E2F-responsive genes (PubMed:10499802). Both physically blocks E2Fs transactivating domain and recruits chromatin-modifying enzymes that actively repress transcription (PubMed:10499802). Cyclin and CDK-dependent phosphorylation of RB1 induces its dissociation from E2Fs, thereby activating transcription of E2F responsive genes and triggering entry into S phase (PubMed:10499802). RB1 also promotes the G0-G1 transition upon phosphorylation and activation by CDK3/cyclin-C (PubMed:15084261). 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 (By similarity); (Microbial infection) 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

Subcellular Localization：Nucleus; Cytoplasm

Expression：
Tissue_specificity:Expressed in the retina. Expressed in foreskin keratinocytes (protein level) (PubMed: 20940255)

Subunit：The hypophosphorylated form interacts with and sequesters the E2F1 transcription factor, thereby inhibiting E2F1 transcription (PubMed:20940255, PubMed:8336704). Interacts with heterodimeric E2F/DP transcription factor complexes containing TFDP1 and either E2F1, E2F3, E2F4 or E2F5, or TFDP2 and E2F4. Interacts (when hyperphosphorylated and hypophosphorylated) with PKP3; the interaction inhibits RB1 interaction with and repression of the transcription factor E2F1, potentially via sequestering RB1 to the cytoplasm (By similarity). The unphosphorylated form interacts with EID1, ARID3B, KDM5A, SUV39H1, MJD2A/JHDM3A and THOC1. Interacts with the N-terminal domain of TAF1. Interacts with SNW1, ATAD5, AATF, DNMT1, LIN9, LMNA, KMT5B, KMT5C, PELP1, UHRF2 and TMPO-alpha. Interacts with GRIP1 and UBR4. Interacts with ARID4A and KDM5B. Interacts with E4F1 and LIMD1. Interacts with SMARCA4/BRG1 and HDAC1 (By similarity). Interacts with PSMA3 and USP4. Interacts (when methylated at Lys-860) with L3MBTL1. Interacts with CHEK2; phosphorylates RB1. Interacts with CDK1 and CDK2 (By similarity). Interacts with PRMT2. Interacts with CEBPA (PubMed:15107404). P-TEFB complex interacts with RB1; promotes phosphorylation of RB1 (PubMed:12037672). Interacts with RBBP9; the interaction disrupts RB1 binding to E2F1 (By similarity). Interacts with KAT2B/PCAF and EP300/P300 (By similarity). Interacts with PAX5 (PubMed:10197586). Interacts (phosphorylated and unphosphorylated) with BLCAP (PubMed:26986503). May interact with NDC80

Research Field

Cell Biology

Synonyms

RB1; Retinoblastoma-associated protein; p105-Rb; pRb; Rb; pp110

Documentation

User Guide for Antibodies (1077 KB)