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OCT4/POU5F1 Polyclonal antibody
OCT4/POU5F1 Polyclonal Antibody for FC, IF, IHC, WB, ELISA
Cat no : 11263-1-AP
Validation Data Gallery
|Positive WB detected in||NCCIT cells, HEK-293 cells, MCF-7 cells, H7ES cells, U-251 cells, mouse brain tissue, rat brain tissue, mouse embryo tissue|
|Positive IHC detected in||human lung cancer tissue|
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
|Positive IF detected in||mouse eye tissue|
|Positive FC detected in||K-562 cells|
|Western Blot (WB)||WB : 1:1000-1:5000|
|Immunohistochemistry (IHC)||IHC : 1:50-1:500|
|Immunofluorescence (IF)||IF : 1:50-1:500|
|Sample-dependent, check data in validation data gallery|
11263-1-AP targets OCT4/POU5F1 in WB, IP, IHC, IF, FC, ELISA applications and shows reactivity with human, mouse, rat samples.
|Tested Reactivity||human, mouse, rat|
|Cited Reactivity||human, mouse, rat, pig|
|Host / Isotype||Rabbit / IgG|
|Immunogen||OCT4/POU5F1 fusion protein Ag1794|
|Full Name||POU class 5 homeobox 1|
|Calculated molecular weight||39 kDa|
|Observed molecular weight||50-60 kDa|
|GenBank accession number||BC020712|
|Gene ID (NCBI)||5460|
|Purification Method||Antigen affinity purification|
|Storage Buffer||PBS with 0.02% sodium azide and 50% glycerol pH 7.3.|
|Storage Conditions||Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.|
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).
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The reviews below have been submitted by verified Proteintech customers who received an incentive forproviding their feedback.
Udesh (Verified Customer) (11-18-2022)
Worked well in Osteosarcoma U2OS cells. 20ug protein loaded. Dilution 1:2000 in 5% NFDM.
Gongsheng (Verified Customer) (11-02-2022)
This antibody works well in WB, diluation 1:1000, incubation at +4 °C.
Silvia (Verified Customer) (10-19-2021)
It works well for Immunofluorescence on hiPSCs