18S ribosomal RNA (abbreviated 18S rRNA) is a part of the ribosomal RNA in eukaryotes. It is a component of the Eukaryotic small ribosomal subunit (40S) and the cytosolic homologue of …

18S Ribosomal RNA is a structural RNA that is a fundamental component of all eukaryotic cells. It is a part of ribosomal RNA and serves as the small subunit of eukaryotic cytoplasmic ribosomes.

Jul 28, 2025 · The “18S” designation refers to the molecule’s sedimentation coefficient, measured in Svedberg units (S), which indicates how quickly a particle settles in a centrifuge, reflecting …

18S ribosomal RNA is a widely used control for qRT-PCR analyses because of its invariant expression across tissues, cells, and experimental treatments

Nov 14, 2025 · We present a detailed map of the human ribosomal transcription unit with the locations of numerous useful restriction sites. In particular, a unique NheI site in the 5.8 S …

18S rRNA is approximately 1,800 nucleotides long and is part of the 40S ribosomal subunit in eukaryotes. It is encoded by the nuclear genome, with multiple copies present in the genome, …

The human 18S ribosomal RNA gene: evolution and stability. We report the 1,870-base-pair primary sequence of a human 18S rRNA gene and propose a secondary structure based on …

The universal presence of the 18S rRNA in eukaryotes and generally high degree of conservation in evolution allow the construction of universal primers for DNA amplification by polymerase …

Sep 26, 2023 · The main difference between 16S rRNA and 18S rRNA is that 16S rRNA occurs in the small subunit of the prokaryotic ribosome, whereas 18S rRNA occurs in the small subunit …

Mar 3, 2014 · Here, we predicted 18S rRNA primers based on consecutive conserved sites and evaluated their coverage efficiency and scope of application to different eukaryotic groups.