Aliases for LIN28A Gene
External Ids for LIN28A Gene
Previous HGNC Symbols for LIN28A Gene
Previous GeneCards Identifiers for LIN28A Gene
This gene encodes a LIN-28 family RNA-binding protein that acts as a posttranscriptional regulator of genes involved in developmental timing and self-renewal in embryonic stem cells. The encoded protein functions through direct interaction with target mRNAs and by disrupting the maturation of certain miRNAs involved in embryonic development. This protein prevents the terminal processing of the LET7 family of microRNAs which are major regulators of cellular growth and differentiation. Aberrant expression of this gene is associated with cancer progression in multiple tissues. [provided by RefSeq, Sep 2015]
GeneCards Summary for LIN28A Gene
LIN28A (Lin-28 Homolog A (C. Elegans)) is a Protein Coding gene. Diseases associated with LIN28A include embryonal tumor with multilayered rosettes and central nervous system primitive neuroectodermal neoplasm. Among its related pathways are Developmental Biology and Cardiac Progenitor Differentiation. GO annotations related to this gene include nucleic acid binding and mRNA binding. An important paralog of this gene is LIN28B.
UniProtKB/Swiss-Prot for LIN28A Gene
Translational enhancer that drives specific mRNAs to polysomes and increases the efficiency of protein synthesis. Its association with the translational machinery and target mRNAs results in an increased number of initiation events per molecule of mRNA and, indirectly, in mRNA stabilization. Binds IGF2 mRNA, MYOD1 mRNA, ARBP/36B4 ribosomal protein mRNA and its own mRNA. Essential for skeletal muscle differentiation program through the translational up-regulation of IGF2 expression (By similarity). Suppressor of microRNA (miRNA) biogenesis, including that of let-7, miR107, miR-143 and miR-200c. Specifically binds miRNA precursors (pre-miRNAs), recognizing an 5-GGAG-3 motif found in pre-miRNA terminal loop, and recruits ZCCHC11/TUT4 uridylyltransferase. This results in the terminal uridylation of target pre-miRNAs (PubMed:19703396) (PubMed:22118463) (PubMed:22898984). Uridylated pre-miRNAs fail to be processed by Dicer and undergo degradation. The repression of let-7 expression is required for normal development and contributes to maintain the pluripotent state by preventing let-7-mediated differentiation of embryonic stem cells (By similarity).