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AB251933

Anti-RRN3 antibody

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(2 Publications)

Rabbit Polyclonal RRN3 antibody. Suitable for IHC-P, ICC/IF and reacts with Human samples. Cited in 2 publications. Immunogen corresponding to Recombinant Fragment Protein within Human RRN3 aa 550-650.

View Alternative Names

TIFIA, RRN3, RNA polymerase I-specific transcription initiation factor RRN3, Transcription initiation factor IA, TIF-IA

2 Images
Immunocytochemistry/ Immunofluorescence - Anti-RRN3 antibody (AB251933)
  • ICC/IF

Unknown

Immunocytochemistry/ Immunofluorescence - Anti-RRN3 antibody (AB251933)

PFA-fixed, Triton X-100 permeabilized MCF7 (human breast adenocarcinoma cell line) cells stained for RRN3 (green) using ab251933 at 4 µg/ml in ICC/IF.

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-RRN3 antibody (AB251933)
  • IHC-P

Unknown

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-RRN3 antibody (AB251933)

Paraffin-embedded human cerebellum tissue stained for RRN3 using ab251933 at 1/200 dilution in immunohistochemical analysis.

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Human

Applications

IHC-P, ICC/IF

applications

Immunogen

Recombinant Fragment Protein within Human RRN3 aa 550-650. The exact immunogen used to generate this antibody is proprietary information.

Q9NYV6

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IHCP" : {"fullname" : "Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)", "shortname":"IHC-P"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/200 - 1/500", "IHCP-species-notes": "<p></p> Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "0.25-2 µg/mL", "ICCIF-species-notes": "<p>Fixation/Permeabilization: PFA/Triton X-100.</p>" } } }

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
pH: 7.2 Preservative: 0.02% Sodium azide Constituents: PBS, 40% Glycerol (glycerin, glycerine)
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The RRN3 protein also known as TIF-IA plays an important role in the initiation of ribosomal RNA (rRNA) synthesis. It weighs approximately 70 kDa and is present mainly in the nucleolus of cells where ribosome production takes place. RRN3 functions as a transcription factor and interacts with RNA polymerase I facilitating the transcription of rRNA genes. It is an essential player in cellular growth and proliferation due to its role in ribosome biogenesis which is a fundamental process in all active eukaryotic cells.
Biological function summary

RRN3 is involved in the regulation of ribosome production. It acts as a mediator between the RNA polymerase I complex and the transcription machinery ensuring accurate transcription initiation of rRNA. This interaction forms part of a larger complex that includes the upstream binding factor (UBF) which stabilizes the pre-initiation complex promoting efficient rRNA transcription. RRN3 is important for the maintenance of cellular metabolic activity and overall protein synthesis levels.

Pathways

RRN3 is integral to nutrient signaling and cell growth regulation. It participates in the mechanistic target of rapamycin (mTOR) pathway which controls cell growth and proliferation in response to nutrient availability. RRN3 interacts with mTORC1 to link nutrient signals to ribosome production modulating cellular growth rates. Furthermore RRN3 is associated with the ribosomal biogenesis stress response pathway engaging proteins such as S6 kinase which is activated under conditions requiring increased protein synthesis.

RRN3 is connected to cancer and ribosomopathies. Overexpression of RRN3 has been observed in various cancers suggesting its role in uncontrolled cell proliferation characteristic of tumor growth. Cancerous cells frequently have increased ribosome biogenesis to support rapid cell division with RRN3 serving as a critical factor in this process. Additionally disruptions in RRN3 function can affect ribosomopathies disorders caused by defects in ribosome production. Interactions with proteins like MDM2 which regulates the tumor suppressor protein p53 highlight the involvement of RRN3 in these diseases further emphasizing its importance in cellular regulation and disease onset.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Required for efficient transcription initiation by RNA polymerase I (Pol I). Required for the formation of the competent pre-initiation complex (PIC).
See full target information RRN3

Publications (2)

Recent publications for all applications. Explore the full list and refine your search

Cancer cell international 22:287 PubMed36123703

2022

YY1 promotes pancreatic cancer cell proliferation by enhancing mitochondrial respiration.

Applications

Unspecified application

Species

Unspecified reactive species

Bin Li,Junyi Wang,Jing Liao,Minghui Wu,Xiangshu Yuan,Hezhi Fang,Lijun Shen,Minghua Jiang

Human molecular genetics 32:104-121 PubMed35925837

2022

TFIIB-related factor 1 is a nucleolar protein that promotes RNA polymerase I-directed transcription and tumour cell growth.

Applications

Unspecified application

Species

Unspecified reactive species

Juan Wang,Qiyue Chen,Xin Wang,Shasha Zhao,Huan Deng,Baoqiang Guo,Cheng Zhang,Xiaoye Song,Wensheng Deng,Tongcun Zhang,Hongwei Ni
View all publications

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