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Bos taurus (cattle) bta-miR-18a URS00000A05D9_9913

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bta-mir-18a: Bta-mir-18a is a microRNA that has been found to be expressed at relatively higher levels in the ovarian cortical portion [PMC2762473]. It is also one of the known miRNAs that show consistent relative expression in the high motility (HM) and low motility (LM) fractions of sperm [PMC5209821]. In the distal jejunum, bta-mir-18a has been found to be negatively correlated with several genes, including F3, PTGS2, THEMIS, ITK, and TIFA [PMC7959717]. It is also negatively correlated with ITCH, GJA1, IL4R, F3, and CD7 in the distal jejunum and is associated with immune cell trafficking and humoral immune response [PMC7959717]. Bta-mir-18a has been shown to be negatively correlated with several transporters pathways [PMC9378797]. It also shows a strong correlation with several miRNAs such as bta-miR-96, bta-miR-652, and bta-miR-6123 [PMC9378797]. Interestingly, bta-mir-18a shows an inverse correlation pattern with microbiota composition compared to other miRNAs [PMC9378797]. In both humans and cattle studies, bta-mir-18a has been associated with bacteria such as E. coli shedding in cattle's distal jejunum [PMC9378797]. Bta-mir-18a is also correlated with methane metabolism as well as ABC transporters and transcription factors pathways [PMC9378797].

Genome locations

Gene Ontology annotations


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This sequence is found in 67 other species

  1. Ateles geoffroyi age-miR-18
  2. Canis lupus familiaris (dog) cfa-miR-18a
  3. Columba livia (rock pigeon) cli-miR-18a-5p
  4. Danio rerio dre-miR-18a
  5. Gadus morhua (Atlantic cod) gmo-miR-18a-5p
  6. Gallus gallus gga-miR-18a-5p
  7. Gorilla gorilla gorilla ggo-miR-18a (MIR18A)
  8. Gorilla gorilla (western gorilla) ggo-miR-18a
  9. Haplochromis burtoni abu-miR-18a
  10. Homo sapiens (human) miscellaneous RNA
  11. Lagothrix lagotricha lla-miR-18
  12. Lemur catta lca-miR-18
  13. Macaca mulatta (Rhesus monkey) mml-miR-18a-5p
  14. Macaca nemestrina (pig-tailed macaque) mne-miR-18
  15. Maylandia zebra mze-miR-18a
  16. Monodelphis domestica mdo-miR-18a-5p
  17. Mus musculus Mus_musculus piRNA piR-mmu-72635
  18. Neolamprologus brichardi nbr-miR-18a
  19. Oreochromis niloticus (Nile tilapia) oni-miR-18a
  20. Pan paniscus (pygmy chimpanzee) ppa-miR-18
  21. Pan troglodytes (chimpanzee) ptr-miR-18a
  22. Pongo pygmaeus ppy-miR-18a
  23. Pteropus alecto (black flying fox) pal-miR-18a-5p
  24. Pundamilia nyererei pny-miR-18a
  25. Rattus norvegicus Rattus_norvegicus piRNA piR-rno-63164
  26. Saguinus labiatus sla-miR-18
  27. Salmo salar (Atlantic salmon) ssa-miR-18b-5p
  28. Sus scrofa ssc-miR-18a
  29. Taeniopygia guttata tgu-miR-18a
  30. Takifugu rubripes (torafugu) fru-miR-18
  31. Tetraodon nigroviridis (spotted green pufferfish) tni-miR-18
  32. Tor tambroides miR-18a
  33. Xenopus laevis (African clawed frog) xla-miR-18a
  34. Xenopus tropicalis (tropical clawed frog) Xenopus_tropicalis piRNA piR-xtr-3307188