Complete sequence of the closed circular extrachromosomal element (CERE) of Naegleria australiensis De Jonckheere (strain PP 397)

Brian T Nguyen; Nora M Chapman; Niklas Johnson; Holly A F Stessman; Steven Tracy; Kristen M Drescher

doi:10.1128/MRA.00321-23

Complete sequence of the closed circular extrachromosomal element (CERE) of Naegleria australiensis De Jonckheere (strain PP 397)

Microbiol Resour Announc. 2023 Oct 19;12(10):e0032123. doi: 10.1128/MRA.00321-23. Epub 2023 Sep 26.

Authors

Brian T Nguyen¹, Nora M Chapman², Niklas Johnson¹, Holly A F Stessman³, Steven Tracy², Kristen M Drescher¹

Affiliations

¹ Department of Medical Microbiology and Immunology, Creighton University, Omaha, Nebraska, USA.
² Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, Nebraska, USA.
³ Department of Pharmacology & Neuroscience, Creighton University, Omaha, Nebraska, USA.

Abstract

Ribosomal RNA is not encoded in chromosomal DNA in amoebae of the Naegleria genus but the rRNA genes are located on closed circular extrachromosomal ribosomal DNA (rDNA)-containing elements (CERE). In this report, we describe the sequence of the CERE of Naegleria australiensis De Jonckheere (strain PP397).

Keywords: CERE; Naegleria; rDNA.