• Product name
  • Description
    Rabbit polyclonal to Lin28B
  • Tested applications
    Suitable for: WBmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Synthetic peptide conjugated to KLH, surrounding amino acids 242-246 (P-S-V-Q-K) of Human Lin28B (NP_001004317.1).

  • Positive control
    • HeLa and 293 cell extracts.


  • Form
  • Storage instructions
    Shipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
  • Storage buffer
    pH: 7.40
    Preservative: 0.02% Sodium azide
    Constituents: 49% PBS, 50% Glycerol, 0.88% Sodium chloride
    Note: PBS (without Mg2+and Ca2+)
  • Concentration information loading...
  • Purity
    Immunogen affinity purified
  • Purification notes
    ab119367 was purified by affinity-chromatography using epitope-specific peptide.
  • Clonality
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab119367 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB 1/500 - 1/1000. Predicted molecular weight: 28 kDa.


  • Function
    Acts as a suppressor of microRNA (miRNA) biogenesis by specifically binding the precursor let-7 (pre-let-7), a miRNA precursor. Acts by binding pre-let-7 and recruiting ZCCHC11/TUT4 uridylyltransferase, leading to the terminal uridylation of pre-let-7. Uridylated pre-let-7 miRNAs fail to be processed by Dicer and undergo degradation. Specifically recognizes the 5'-GGAG-3' motif in the terminal loop of pre-let-7. Also recognizes and binds non pre-let-7 pre-miRNAs that contain the 5'-GGAG-3' motif in the terminal loop, leading to their terminal uridylation and subsequent degradation. Mediates MYC-mediated let-7 repression. Isoform 1, when overexpressed, stimulates growth of the breast adenocarcinoma cell line MCF-7. Isoform 2 has no effect on cell growth.
  • Tissue specificity
    High expression in testis, fetal liver, placenta and in hepatocellular carcinoma (HCC). Isoform 1 is only detected in moderately and poorly differentiated HCC tissues and placenta (at protein level). Isoform 2 is detected in fetal liver, non-tumor liver tissues, as well as well-differentiated tumor tissues (at protein level).
  • Sequence similarities
    Belongs to the lin-28 family.
    Contains 2 CCHC-type zinc fingers.
    Contains 1 CSD (cold-shock) domain.
  • Cellular localization
    Cytoplasm. Nucleus. Predominantly cytoplasmic at G1 phase, accumulates in the nucleus in S and G2 phases. The frequency of nuclear localization in S and in G2 phases is 60% and 30%, respectively.
  • Information by UniProt
  • Database links
  • Alternative names
    • CSDD 2 antibody
    • CSDD2 antibody
    • FLJ16517 antibody
    • Lin 28 homolog B (C. elegans) antibody
    • Lin 28.2 antibody
    • Lin-28B antibody
    • LIN28B antibody
    • LN28B_HUMAN antibody
    • Protein lin-28 homolog B antibody
    see all


  • All lanes : Anti-Lin28B antibody (ab119367) at 1/500 dilution

    Lane 1 : HeLa cell extract
    Lane 2 : 293 cell extract

    Predicted band size : 28 kDa


This product has been referenced in:
  • Wu T  et al. Increased expression of Lin28B associates with poor prognosis in patients with oral squamous cell carcinoma. PLoS One 8:e83869 (2013). WB ; Mouse . Read more (PubMed: 24386298) »
  • Murray MJ  et al. LIN28 Expression in malignant germ cell tumors downregulates let-7 and increases oncogene levels. Cancer Res 73:4872-84 (2013). Read more (PubMed: 23774216) »

See all 2 Publications for this product

Customer reviews and Q&As

Thank you very much for your interest our AbTrial program.

To our knowledge, ab119367 has not been tested in Flow cytometry and/or Immunofluorescence. However by participating in our AbTrial program you can now use our products in an untested...

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