MicroRNA Let-7b-5p

**Semantic type:** Nucleic Acid, Nucleoside, or Nucleotide

**Definition:** A 22 ribonucleotide sequence that is a final product of the processing of MIRLET7B pre-miRNA. This oligonucleotide may be involved in the negative regulation of gene expression. Upregulation of its expression may be associated with lung cancer and melanoma and downregulation of its expression may be associated with acute lymphoblastic leukemia.

**Synonyms:** - Let-7b-5p - MIRLET7B - hsa-let-7b - hsa-let-7b-5p - miR-let-7b-5p - miRNA Let-7b-5p - miRNA let-7b-5p - miRNA-let-7b-5p