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Phylogenetic Analysis of the SNORD116 Locus.


ABSTRACT: The SNORD116 small nucleolar RNA locus (SNORD116@) is contained within the long noncoding RNA host gene SNHG14 on human chromosome 15q11-q13. The SNORD116 locus is a cluster of 28 or more small nucleolar (sno) RNAs; C/D box (SNORDs). Individual RNAs within the cluster are tandem, highly similar sequences, referred to as SNORD116-1, SNORD116-2, etc., with the entire set referred to as SNORD116@. There are also related SNORD116 loci on other chromosomes, and these additional loci are conserved among primates. Inherited chromosomal 15q11-q13 deletions, encompassing the SNORD116@ locus, are causative for the paternally-inherited/maternally-imprinted genetic condition, Prader-Willi syndrome (PWS). Using in silico tools, along with molecular-based and sequenced-based confirmation, phylogenetic analysis of the SNORD116@ locus was performed. The consensus sequence for the SNORD116@ snoRNAs from various species was determined both for all the SNORD116 snoRNAs, as well as those grouped using sequence and location according to a human grouping convention. The implications of these findings are put in perspective for studying SNORD116 in patients with inherited Prader-Willi syndrome, as well as model organisms.

SUBMITTER: Good DJ 

PROVIDER: S-EPMC5748676 | BioStudies | 2017-01-01

REPOSITORIES: biostudies

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