Article ; Online: H/ACA snoRNA levels are regulated during stem cell differentiation.
2020 Volume 48, Issue 15, Page(s) 8686–8703
Abstract: H/ACA small nucleolar RNAs (snoRNAs) guide pseudouridylation as part of a small nucleolar ribonucleoprotein complex (snoRNP). Disruption of H/ACA snoRNA levels in stem cells impairs pluripotency, yet it remains unclear how H/ACA snoRNAs contribute to ... ...
Abstract | H/ACA small nucleolar RNAs (snoRNAs) guide pseudouridylation as part of a small nucleolar ribonucleoprotein complex (snoRNP). Disruption of H/ACA snoRNA levels in stem cells impairs pluripotency, yet it remains unclear how H/ACA snoRNAs contribute to differentiation. To determine if H/ACA snoRNA levels are dynamic during differentiation, we comprehensively profiled H/ACA snoRNA abundance in multiple murine cell types and during differentiation in three cellular models, including mouse embryonic stem cells and mouse myoblasts. We determined that the profiles of H/ACA snoRNA abundance are cell-type specific, and we identified a subset of snoRNAs that are specifically regulated during differentiation. Additionally, we demonstrated that a decrease in Snora27 abundance upon differentiation corresponds to a decrease in pseudouridylation of its target site within the E-site transfer RNA (tRNA) binding region of the 28S ribosomal RNA (rRNA) in the large ribosomal subunit. Together, these data point toward a potential model in which H/ACA snoRNAs are specifically regulated during differentiation to alter pseudouridylation and fine tune ribosome function. |
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MeSH term(s) | Animals ; Base Sequence/genetics ; Cell Differentiation/genetics ; Mice ; Mouse Embryonic Stem Cells ; Myoblasts/metabolism ; Nucleic Acid Conformation ; Pseudouridine/genetics ; RNA, Ribosomal, 28S/genetics ; RNA, Small Nucleolar/genetics ; Ribonucleoproteins, Small Nucleolar/genetics ; Ribosomes/genetics |
Chemical Substances | RNA, Ribosomal, 28S ; RNA, Small Nucleolar ; Ribonucleoproteins, Small Nucleolar ; Pseudouridine (1445-07-4) |
Language | English |
Publishing date | 2020-07-24 |
Publishing country | England |
Document type | Journal Article ; Research Support, N.I.H., Intramural |
ZDB-ID | 186809-3 |
ISSN | 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048 |
ISSN (online) | 1362-4962 ; 1362-4954 |
ISSN | 0301-5610 ; 0305-1048 |
DOI | 10.1093/nar/gkaa612 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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