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61121
Rb (4H1) Mouse mAb (BSA and Azide Free)
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Rb (4H1) Mouse mAb (BSA and Azide Free) #61121

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  1. WB
  2. IHC
  3. IF
  4. F
Western blot analysis of extracts from HeLa cells, transfected with 100 nM SignalSilence® Control siRNA (Fluorescein Conjugate) #6201 (-), SignalSilence® Rb siRNA I #6451 (+), or SignalSilence® Rb siRNA II (+) using Rb (4H1) Mouse mAb #9309 and α-Tubulin (11H10) Rabbit mAb #2125. The Rb (4H1) Mouse mAb confirms silencing of Rb expression, while the α-Tubulin (11H10) Rabbit mAb is used to control for loading and specificity of Rb siRNA. Data were generated using the standard formulation of this product.
Western blot analysis of extracts from COS-7 cells, untreated or hydroxyurea-treated (G1/S), using Rb (4H1) Mouse mAb. Data were generated using the standard formulation of this product.
Western blot analysis of extracts from HeLa cells (lane 1) or Rb knockout cells (lane 2) using Rb (4H1) Mouse mAb #9309 (upper) or β-Actin (D6A8) Rabbit mAb #8457 (lower). The absence of signal in the Rb knockout HeLa cells confirms specificity of the antibody for Rb. Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded human lung carcinoma using Rb (4H1) Mouse mAb. Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded human esophageal carcinoma using Rb (4H1) Mouse mAb. Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded human gastric adenocarcinoma using Rb (4H1) Mouse mAb. Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded human T cell lymphoblastic lymphoma using Rb (4H1) Mouse mAb. Data were generated using the standard formulation of this product.
Immunohistochemical analysis of paraffin-embedded human breast carcinoma, showing nuclear localization, using Rb (4H1) Mouse mAb. Data were generated using the standard formulation of this product.
Confocal immunofluorescent image of SH-SY5Y cells, using RB (4H1) Mouse mAb (green). Actin filaments have been labeled with Alexa Fluor® 555 phalloidin (red). Data were generated using the standard formulation of this product.
Flow cytometric analysis of Jurkat cells, using Rb (4H1) Mouse mAb versus propidium iodide (DNA content). The box indicates Rb positive cells. Data were generated using the standard formulation of this product.
To Purchase # 61121SF
Cat. # Size Price Inventory
61121SF
100 µg

Supporting Data

REACTIVITY H Mk B Pg
SENSITIVITY Endogenous
MW (kDa) 110
Source/Isotype Mouse IgG2a

Application Key:

  • WB-Western Blot
  • IP-Immunoprecipitation
  • IHC-Immunohistochemistry
  • ChIP-Chromatin Immunoprecipitation
  • C&R-CUT&RUN
  • C&T-CUT&Tag
  • DB-Dot Blot
  • eCLIP-eCLIP
  • IF-Immunofluorescence
  • F-Flow Cytometry

Species Cross-Reactivity Key:

  • H-Human
  • M-Mouse
  • R-Rat
  • Hm-Hamster
  • Mk-Monkey
  • Vir-Virus
  • Mi-Mink
  • C-Chicken
  • Dm-D. melanogaster
  • X-Xenopus
  • Z-Zebrafish
  • B-Bovine
  • Dg-Dog
  • Pg-Pig
  • Sc-S. cerevisiae
  • Ce-C. elegans
  • Hr-Horse
  • GP-Guinea Pig
  • Rab-Rabbit
  • All-All Species Expected

Product Usage Information

This product is the carrier-free version of product #9309. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol.

This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN, or CUT&Tag assays. If you require a carrier-free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.

Formulation

Supplied in 1X PBS, BSA and Azide Free.

For standard formulation of this product see product #9309.

Storage

Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.

Specificity / Sensitivity

Rb (4H1) Mouse mAb (BSA and Azide Free) detects endogenous levels of total Rb protein. The antibody does not cross-react with the Rb homologues p107 or p130, or with other proteins.

Species Reactivity:

Human, Monkey, Bovine, Pig

Source / Purification

Monoclonal antibody is produced by immunizing animals with an Rb-C fusion protein containing residues 701-928 of human Rb. The epitope corresponds to a region surrounding His890 of human Rb.

Background

The retinoblastoma tumor suppressor protein Rb regulates cell proliferation by controlling progression through the restriction point within the G1-phase of the cell cycle (1). Rb has three functionally distinct binding domains and interacts with critical regulatory proteins including the E2F family of transcription factors, c-Abl tyrosine kinase, and proteins with a conserved LXCXE motif (2-4). Cell cycle-dependent phosphorylation by a CDK inhibits Rb target binding and allows cell cycle progression (5). Rb inactivation and subsequent cell cycle progression likely requires an initial phosphorylation by cyclin D-CDK4/6 followed by cyclin E-CDK2 phosphorylation (6). Specificity of different CDK/cyclin complexes has been observed in vitro (6-8) and cyclin D1 is required for Ser780 phosphorylation in vivo (9).

Pathways

Explore pathways related to this product.

Limited Uses

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Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

For Research Use Only. Not for Use in Diagnostic Procedures.
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