General description
Lin28 is a developmentally regulated RNA binding protein (RBP). It’s down regulation is mediated in part by Lin4 and miR-125b, the mammalian micro-RNA homolog of Lin4. It is known to be negatively regulated by retinoic acid and act as a translational enhancer by driving specific mRNAs to polysomes and thus increasing the efficiency of protein synthesis by increasing the number of initiation events per mRNA molecule. Lin28 is necessary and sufficient for selectively blocking the cleavage processing of pri-let-7 miRNAs in embryonic cells (Viswanathan, 2008). Lin28 is a negative regulator of miRNA biogenesis and may play a role in blocking miRNA-mediated differentiation in stem cells and in certain cancers (Viswanathan, 2008). The mechanism by which miR-125b represses Lin28 in mammalian cells appears to involve reductions not only in translational efficiency, but also in mRNA abundance (Wu, 2005). Lin28 has shown to be essential for skeletal muscle differentiation through the translational upregulation of IGF2 expression. It is known to be expressed in testis, placenta, and embryonic stem (ES) cells.
~30 kDa observed. Uniprot describes an isoform produced by alternative splicing at ~20 kDa
Immunogen
Recombinant protein corresponding to human Lin28B.
Application
Anti-Lin-28B, clone 15G3 | MABE885 is an antibody against Lin-28B for use in Western Blotting, Immunocytochemistry, Immunoprecipitation.
Research Category
Epigenetics & Nuclear Function
Research Sub Category
Nuclear Receptors
Western Blotting Analysis: 1.0 µg/mL from a representative lot detected Lin28B in 10 µg of NTera2 cell lysate.
Immunocytochemistry Analysis: A representative lot detected Lin28B in K-562 cells (Prof. N. Kim, Seoul National University).
Immunoprecipitation Analysis: A representative lot immunoprecipitated Lin28B in Huh7 cell lysate (Prof. N. Kim, Seoul National University).
Biochem/physiol Actions
This antibody does not cross react with Lin-28A.
Physical form
Format: Purified
Protein G Purified
Purified mouse monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Preparation Note
Stable for 1 year at 2-8°C from date of receipt.
Analysis Note
Evaluated by Western Blotting in HepG2 cell lysate.
Western Blotting Analysis: 1.0 µg/mL of this antibody detected Lin28B in 10 µg of HepG2 cell lysate.
Other Notes
Concentration: Please refer to lot specific datasheet.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
| biological source | mouse |
| Quality Segment | 100 |
| conjugate | unconjugated |
| antibody form | purified immunoglobulin |
| antibody product type | primary antibodies |
| clone | 15G3, monoclonal |
| species reactivity | human |
| technique(s) | immunocytochemistry: suitable,immunoprecipitation (IP): suitable,western blot: suitable |
| isotype | IgG1κ |
| NCBI accession no. | NP_001004317 |
| UniProt accession no. | Q6ZN17 |
| shipped in | wet ice |
| target post-translational modification | unmodified |
| Gene Information | human ... LIN28B(389421) |
