Human LIN28B

Rabbit

Human (tested or 100% immunogen sequence identity)

IgG Polyclonal

Unconjugated. Also available conjugated with HRP, Biotin, FITC.

Protein G purified

Unmodified

Recombinant Human Protein lin-28 homolog B protein (166-250AA)

Suppressor of microRNA (miRNA) biogenesis, including that of let-7 and possibly of miR107, miR-143 and miR-200c. Binds primary let-7 transcripts (pri-let-7), including pri-let-7g and pri-let-7a-1, and sequester them in the nucleolus, away from the microprocessor complex, hence preventing their processing into mature miRNA (PubMed:22118463). Does not act on pri-miR21 (PubMed:22118463). The repression of let-7 expression is required for normal development and contributes to maintain the pluripotent state of embryonic stem cells by preventing let-7-mediated differentiation. When overexpressed, recruits ZCCHC11/TUT4 uridylyltransferase to pre-let-7 transcripts, leading to their terminal uridylation and degradation (PubMed:19703396). This activity might not be relevant in vivo, as LIN28B-mediated inhibition of let-7 miRNA maturation appears to be ZCCHC11-independent (PubMed:22118463). Interaction with target pre-miRNAs occurs via an 5'-GGAG-3' motif in the pre-miRNA terminal loop. Mediates MYC-induced let-7 repression (By similarity). When overexpressed, isoform 1 stimulates growth of the breast adenocarcinoma cell line MCF-7. Isoform 2 has no effect on cell growth.

• IHC
• Immunofluorescence
• ELISA

PBS, pH 7.4, 0.03% Proclin 300, 50% glycerol.

Short term: -20°C; Long term: -80°C; Avoid freeze-thaw cycles.

For research use only. Intended for use by laboratory professionals.

This antibody carries the LSBio 100% Guarantee.

Uniprot: Q6ZN17 NCBI: NP_001004317.1