HRP-conjugated OCT4 Monoclonal antibody

OCT4 Monoclonal Antibody for WB

Host / Isotype

Mouse / IgG1

Reactivity

human, mouse

Applications

WB

Conjugate

HRP

CloneNo.

1C4B6

Cat no : HRP-60242

Synonyms

Oct 3, Oct 4, OCT3, OCT3/4, OCT4, Octamer binding protein 3, Octamer binding protein 4, OTF 3, OTF3, OTF4, POU class 5 homeobox 1, POU5F1

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Validation Data Gallery

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  WB analysis of HEK-293 using HRP-60242

  HEK-293 cells were subjected to SDS PAGE followed by western blot with HRP-60242 (OCT4 antibody) at dilution of 1:10000 incubated at room temperature for 1.5 hours.

• 

  WB analysis using HRP-60242

  Various lysates were subjected to SDS PAGE followed by western blot with HRP-60242 (OCT4 antibody) at dilution of 1:10000 incubated at room temperature for 1.5 hours.

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Tested Applications

• Positive WB detected in: HEK-293 cells, HT-29 cells, mouse brain tissue

Recommended dilution

• Western Blot (WB): WB : 1:5000-1:50000

It is recommended that this reagent should be titrated in each testing system to obtain optimal results.

Sample-dependent, Check data in validation data gallery.

Product Information

HRP-60242 targets OCT4 in WB applications and shows reactivity with human, mouse samples.

• Tested Reactivity: human, mouse
• Host / Isotype: Mouse / IgG1
• Class: Monoclonal
• Type: Antibody
• Immunogen: OCT4 fusion protein Ag1794
• Full Name: POU class 5 homeobox 1
• Calculated Molecular Weight: 39 kDa
• Observed Molecular Weight: 50-52 kDa
• GenBank Accession Number: BC020712
• Gene Symbol: POU5F1
• Gene ID (NCBI): 5460
• RRID: AB_2883831
• Conjugate: HRP
• Form: Liquid
• Purification Method: Protein G purification
• Storage Buffer: PBS with 50% Glycerol, 0.05% Proclin300, 0.5% BSA, pH 7.3.
• Storage Conditions: Store at -20°C. Avoid exposure to light. Stable for one year after shipment. Aliquoting is unnecessary for -20^oC storage.

Background Information

Background

Octamer-binding protein 4 (OCT4), also known as POU5F1 or OCT3/4, is a member of the POU gene family and encoded by the human gene POU5F1 (POU domain class 5 transcription factor 1). OCT4 is a member of the Octamer class of transcription factors that recognize the 8-base pair consensus motif 5'-ATGCAAAT-3'. Expression of OCT4 is associated with an undifferentiated, pluripotent stem cell phenotype and tumors. OCT4 is also expressed in the developing brain, with the highest levels found in the cortex, olfactory bulb, and the hippocampus.

What is the molecular weight of OCT4?

The molecular weight of OCT4 is 38 kDa.

What are the isoforms of OCT4?

The human POU51F gene consists of five exons located on chromosome 6 and can generate three mRNA isoforms through alternative splicing - OCT4A, OCT4B, and OCT4B1 (PMID: 18787205). OCT4A and OCT4B1 orchestrate gene transcription in the nucleus supporting self-renewal and pluripotency maintenance in ESCs and embryonal carcinoma cells, whereas OCT4B is localized in the cytoplasm in various non-pluripotent cell types and cannot sustain self-renewal and pluripotency.

What is OCT4's involvement in pluripotency and self-renewal?

OCT4 forms a trimeric complex with SOX2 and DNA to control the expression of genes involved with embryonic development, such as FGF4 (PMID: 10801796), UTF1 (PMID: 10409735), or even NANOG (PMID: 15743839). OCT4 is critical for early embryogenesis (PMID: 9814708) and for embryonic stem cell pluripotency (PMID: 16153702). High levels of OCT4 are associated with the ability to self-renew, which is emphasized by OCT4 gene knockdowns promoting differentiation (PMID: 10742100). OCT4 is also one of the four key transcription factors used to generate induced pluripotent stem cells (iPSCs) by reprogramming fibroblasts to a pluripotent state (PMID: 16904174).