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Homo sapiens let-7a-1 stem-loop (hsa-let-7a-1) URS00005EB5B7_9606

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MIRLET7A1: MIRLET7A1 is a microRNA gene located on chromosome 9q22.3 [PMC5356719]. It is one of the three genes expressing let-7a, along with MIRLET7A2 on 11q24.1 and MIRLET7A3 on 22q13.3 [PMC5356719]. MIRLET7A1 has been studied in the context of adenoviral shuttle vectors and priMIR expression vectors [PMC6923634]. It is targeted by several miRNAs, including members of the let-7 family, suggesting potential auto-regulation [PMC7961530]. MIRLET7A1 has also been included in targeted capture assays for detecting structural variations and copy number analysis [PMC7815088]. In the context of acute lymphoblastic leukemia (ALL), variants in MIRLET7A1 have been associated with severe hematologic toxicity arising from treatment [PMC10003057]. Specifically, variants rs12904 (MIR200C), rs3746444 (MIR499A), and rs10739971 (MIRLET7A1) have shown significant associations with hematologic toxicity in ALL patients [PMC10003057]. Furthermore, the rs10739971 variant of MIRLET7A1 has been associated with a potential protective factor against toxic hematological events in pediatric patients undergoing ALL treatment [PMC10003057]. However, no significant differences have been found for genotype and allele frequencies of several miRNAs including MIRLET7A1 between cases and controls in a specific population studied for breast cancer susceptibility [PMC4650490]. Chromosomal loss at 9q22 has also led to recurrent loss of the MIRLET7A gene family, including MIRLET7A1 [PMC7459851]. Overall, studies suggest that MIRLET7A1 plays regulatory roles in cellular processes and may have implications in cancer and therapeutic response [PMC8840188] [PMC10003057] [PMC7459851].

mRNA interactions 5 total

Genome locations

Gene Ontology annotations


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This sequence is found in 36 other species

  1. Aotus nancymaae miRNA (ENSANAG00000002894.1)
  2. Ateles geoffroyi (black-handed spider monkey) precursor microRNA let-7a-1
  3. Bos taurus let-7a-1 stem-loop (bta-let-7a-1)
  4. Capra hircus (Goat) microRNA let-7a-1 (ENSCHIG00000009519.1)
  5. Carlito syrichta (Philippine tarsier) miRNA (ENSTSYG00000021072.2)
  6. Cebus imitator (Panamanian white-faced capuchin) microRNA let-7a-1 (ENSCCAG00000005244.1)
  7. Cercocebus atys (Sooty mangabey) miRNA (ENSCATG00000010054.1)
  8. Colobus angolensis palliatus (Angola colobus) miRNA (ENSCANG00000008020.1)
  9. Echinops telfairi (small Madagascar hedgehog) miRNA (ENSETEG00000021920.1)
  10. Gorilla gorilla gorilla microRNA let-7a-1 (ENSGGOG00000030966.2)
  11. Gorilla gorilla precursor microRNA let-7a-1
  12. Lagothrix lagotricha (brown woolly monkey) precursor microRNA let-7a-1
  13. Lemur catta precursor microRNA let-7a-1
  14. Macaca mulatta let-7a-1 stem-loop (mml-let-7a-1)
  15. Macaca nemestrina (Pig-tailed macaque) miRNA (ENSMNEG00000010971.1)
  16. Mandrillus leucophaeus (Drill) miRNA (ENSMLEG00000004753.1)
  17. Microcebus murinus microRNA let-7a-1 (ENSMICG00000019650.3)
  18. Myotis lucifugus (little brown bat) miRNA (ENSMLUG00000018054.1)
  19. Nomascus leucogenys (Northern white-cheeked gibbon) miRNA (ENSNLEG00000027736.1, ENSNLEG00000034490.1)
  20. Oryctolagus cuniculus (rabbit) ocu-let-7a-1 (ENSOCUG00000018323.1)
  21. Pan paniscus microRNA let-7a-1 (ENSPPAG00000007576.1)
  22. Panthera pardus microRNA let-7a-1 (ENSPPRG00000013995.1)
  23. Panthera tigris altaica (Tiger) miRNA (ENSPTIG00000002647.1)
  24. Pan troglodytes ptr-let-7a-1 (ENSPTRG00000027844.4)
  25. Pongo abelii (Sumatran orangutan) miRNA
  26. Pongo pygmaeus let-7a-1 stem-loop (ppy-let-7a-1)
  27. Propithecus coquereli miRNA (ENSPCOG00000011738.1)
  28. Pteropus vampyrus (large flying fox) miRNA (ENSPVAG00000025480.1)
  29. Rhinopithecus bieti (Black snub-nosed monkey) miRNA (ENSRBIG00000007863.1)
  30. Rhinopithecus roxellana (Golden snub-nosed monkey) miRNA (ENSRROG00000024057.1)
  31. Saguinus labiatus precursor microRNA let-7a-1
  32. Saimiri boliviensis boliviensis (Bolivian squirrel monkey) miRNA (ENSSBOG00000019121.1)
  33. Sorex araneus (European shrew) miRNA (ENSSARG00000016564.1)
  34. Suricata suricatta (meerkat) microRNA let-7a-1 (ENSSSUG00005021949.1)
  35. Tursiops truncatus miRNA (ENSTTRG00000022643.1)
  36. Vicugna pacos miRNA (ENSVPAG00000016957.1)