Related Experiment Video

Updated: Jul 15, 2026

Preparation of Aplysia Sensory-motor Neuronal Cell Cultures
17:27

Preparation of Aplysia Sensory-motor Neuronal Cell Cultures

Published on: June 8, 2009

Alternative splicing in individual Aplysia neurons generates neuropeptide diversity

L B Buck1, J M Bigelow, R Axel

  • 1Howard Hughes Medical Institute, College of Physicians and Surgeons, Columbia University, New York, New York 10032.

Cell
|October 9, 1987
PubMed

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Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
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Alternative RNA Splicing02:18

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Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...