Cell Signaling Technology

Product Pathways - Lineage Markers

LIN28A (P22) Antibody #3979

Applications Reactivity Sensitivity MW (kDa) Source
W H (Mk) Endogenous 26 Rabbit

Applications Key:  W=Western Blotting
Reactivity Key:  H=Human  Mk=Monkey
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.

Protocols

Specificity / Sensitivity

LIN28A (P22) Antibody detects endogenous levels of total LIN28A protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to amino acid sequence surrounding Pro22 of human LIN28A. Antibodies are purified by protein A and peptide affinity chromatography.

Western Blotting

Western Blotting

Western blot analysis of extracts of NTERA-2 and NCCIT cells using LIN28A (P22) Antibody.

Background

LIN28A and LIN28B are conserved, developmentally regulated RNA binding proteins that inhibit the processing and maturation of the let-7 family of miRNAs (1,2). The let-7 miRNAs have been implicated in repression of oncogenes such as ras, myc, and Hmga2 (3). It has recently been shown that LIN28A and LIN28B are upregulated in primary human tumors and in human cancer cell lines, their overexpression directly correlating to downregulation of let-7 miRNAs (4). LIN28 genes are reported to be involved in primordial germ cell development and germ cell malignancy (5) and allelic variation in LIN28B is associated with regulating the timing of puberty in humans (6). Overexpression of LIN28A, in conjunction with Oct-4, Sox2, and Nanog, can reprogram human fibroblasts to pluripotent, ES-like cells (7).

  1. Balzer, E. and Moss, E.G. (2007) RNA Biol 4, 16-25.
  2. Piskounova, E. et al. (2008) J Biol Chem 283, 21310-4.
  3. Cho, W.C. (2007) Mol Cancer 6, 60.
  4. Viswanathan, S.R. et al. (2009) Nat Genet 41, 843-8.
  5. West, J.A. et al. (2009) Nature 460, 909-13.
  6. Ong, K.K. et al. (2009) Nat Genet 41, 729-33.
  7. Yu, J. et al. (2007) Science 318, 1917-20.

Application References

Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!

Companion Products

This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.

Products