AB154887

Anti-PTBP1 antibody

Name: Anti-PTBP1 antibody (ab154887) | Abcam
Brand: Abcam Limited
SKU: AB154887
Price: 535 USD
Availability: InStock

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(2 Publications)

Rabbit Polyclonal PTBP1 antibody. Suitable for IHC-P, WB and reacts with Human, Mouse samples. Cited in 2 publications. Immunogen corresponding to Recombinant Fragment Protein within Human PTBP1 aa 250 to C-terminus.

View Alternative Names

PTB, PTBP1, Polypyrimidine tract-binding protein 1, 57 kDa RNA-binding protein PPTB-1, Heterogeneous nuclear ribonucleoprotein I, hnRNP I

2 Images

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PTBP1 antibody (AB154887)

IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PTBP1 antibody (AB154887)

Immunohistochemical analysis of paraffin-embedded ags xenograft tissue with ab154887 at a 1/500 dilution.
Antigen retrieval : EDTA based, pH 8.0 buffer, 15min

IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PTBP1 antibody (AB154887)

Immunohistochemical analysis of paraffin-embedded mouse brain tissue labelling PTBP1 protein at cytoplasm and nucleus with ab154887 at a 1/500 dilution.
Antigen retrieval : Citrate buffer, pH 6.0, 15 min

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

Reacts with

Human, Mouse

Applications

IHC-P, WB

applications

Immunogen

Recombinant Fragment Protein within Human PTBP1 aa 250 to C-terminus. The exact immunogen used to generate this antibody is proprietary information.

P26599

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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"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/100 - 1/1000", "IHCP-species-notes": " Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/500 - 1/3000", "WB-species-notes": "" }, "Mouse": { "IHCP-species-checked": "testedAndGuaranteed", "IHCP-species-dilution-info": "1/100 - 1/1000", "IHCP-species-notes": "", "WB-species-checked": "guaranteed", "WB-species-dilution-info": "", "WB-species-notes": "" }, "Rat": { "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" }, "Chicken": { "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" }, "Cow": { "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" }, "Pig": { "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" }, "Xenopus tropicalis": { "IHCP-species-checked": "predicted", "IHCP-species-dilution-info": "", "IHCP-species-notes": "", "WB-species-checked": "predicted", "WB-species-dilution-info": "", "WB-species-notes": "" } } }

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Properties and storage information

Form

Liquid

Purification technique

Affinity purification Immunogen

Storage buffer

pH: 7 Preservative: 0.01% Thimerosal (merthiolate) Constituents: 20% Glycerol (glycerin, glycerine), 1.21% Tris, 0.75% Glycine

Shipped at conditions

Blue Ice

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

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Supplementary information

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

PTBP1 also known as polypyrimidine tract-binding protein 1 or hnRNP I is a protein involved in RNA binding. It weighs approximately 57 kDa and is known for its expression in diverse cell types especially in the nucleus of eukaryotic cells. PTBP1 contains four RNA recognition motifs which allow it to interact with polypyrimidine-rich sequences in pre-mRNA. This interaction plays an important role in RNA splicing and the regulation of alternative splicing events.

Biological function summary

PTBP1 influences the stability transport and translation of mRNA molecules. It is part of the heterogeneous nuclear ribonucleoprotein complex which plays a fundamental role in the processing and modification of pre-mRNA into mature mRNA. This activity impacts the expression of a wide range of genes affecting cellular function and growth. PTBP1 regulates mRNA metabolism contributing significantly to post-transcriptional gene regulation.

Pathways

The involvement of PTBP1 spans the management of alternative splicing and the modulation of gene expression. It participates importantly in the alternative splicing pathway alongside proteins like PTBP2 which perform overlapping functions in neurons. PTBP1 affects exon inclusion or exclusion influencing the genetic diversity presented in protein forms within cells. It also plays a role in the exon junction complex pathway impacting post-translational modifications and protein interactions.

Variations in PTBP1 function are linked to conditions such as cancer and neurological disorders. Altered expression levels or mutations can contribute to carcinogenesis through the misregulation of splice variants specific to oncogenes and tumor suppressor genes. In neurological disorders PTBP1 interacts with proteins like FUS affecting the regulation of neuronal-specific alternative splicing. Misbalance in these interactions can have significant pathological implications contributing to diseases such as amyotrophic lateral sclerosis (ALS) and glioblastomas.

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Product protocols

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

Visit the General protocols
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Target data

Plays a role in pre-mRNA splicing and in the regulation of alternative splicing events. Activates exon skipping of its own pre-mRNA during muscle cell differentiation. Binds to the polypyrimidine tract of introns. May promote RNA looping when bound to two separate polypyrimidine tracts in the same pre-mRNA. May promote the binding of U2 snRNP to pre-mRNA. Cooperates with RAVER1 to modulate switching between mutually exclusive exons during maturation of the TPM1 pre-mRNA. Represses the splicing of MAPT/Tau exon 10 (PubMed : 15009664). Binds to polypyrimidine-rich controlling element (PCE) of CFTR and promotes exon skipping of CFTR exon 9, thereby antagonizing TIA1 and its role in exon inclusion of CFTR exon 9 (PubMed : 14966131). Plays a role in the splicing of pyruvate kinase PKM by binding repressively to a polypyrimidine tract flanking PKM exon 9, inhibiting exon 9 inclusion and resulting in exon 10 inclusion and production of the PKM M2 isoform (PubMed : 20010808). In case of infection by picornaviruses, binds to the viral internal ribosome entry site (IRES) and stimulates the IRES-mediated translation (PubMed : 21518806).

See full target information PTBP1

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Publications (2)

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

Chemical biology & drug design 103:e14380 PubMed37890873

2023

A novel link between melatonin and circ_0005753/PTBP1/TXNIP regulatory network in the modulation of osteogenic potential in mesenchymal stem cells.

Applications

Unspecified application

Species

Unspecified reactive species

Wei Tu,Shuying Zhu,Fan Li,Chengyun Xu,Weiping Tu,Yanxia Chen

Molecules (Basel, Switzerland) 27: PubMed35956917

2022

Acetyl-CoA Deficiency Is Involved in the Regulation of Iron Overload on Lipid Metabolism in Apolipoprotein E Knockout Mice.

Applications

Unspecified application

Species

Unspecified reactive species

Gang Luo,Lu Xiang,Lin Xiao

View all publications

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Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.

For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

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Anti-PTBP1 antibody

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PTBP1 antibody (AB154887)

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-PTBP1 antibody (AB154887)

Key facts

Host species

Clonality

Isotype

Carrier free

Reacts with

Applications

Immunogen

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Reactivity data

Properties and storage information

Form

Purification technique

Storage buffer

Shipped at conditions

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Product protocols

Target data

Publications (2)

Product promise