Unknown

Dataset Information

0

Trans-spliced mRNA products produced from circRNA expression vectors.


ABSTRACT: Circular (circ) RNA expression vectors are used as a method of identifying and characterizing RNA sequences that harbor internal ribosome entry site (IRES) activity. During the course of developing a vector series tailored for IRES discovery, we found evidence for the occurrence of trans-spliced mRNAs arising when sequences with promoter activity were embedded between the upstream CTD and downstream NTD exons of the pre-mRNA. These trans-spliced products regenerate the same open reading frame expected from a circRNA and can lead to false-positive signals in screens relying on circRNA expression vectors for IRES discovery. Our results caution against interpretations of IRES activity solely based on results obtained from circRNA expression vectors.

SUBMITTER: Chu J 

PROVIDER: S-EPMC8127989 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

<i>Trans</i>-spliced mRNA products produced from circRNA expression vectors.

Chu Jennifer J   Robert Francis F   Pelletier Jerry J  

RNA (New York, N.Y.) 20210324 6


Circular (circ) RNA expression vectors are used as a method of identifying and characterizing RNA sequences that harbor internal ribosome entry site (IRES) activity. During the course of developing a vector series tailored for IRES discovery, we found evidence for the occurrence of <i>trans</i>-spliced mRNAs arising when sequences with promoter activity were embedded between the upstream CTD and downstream NTD exons of the pre-mRNA. These <i>trans</i>-spliced products regenerate the same open re  ...[more]

Similar Datasets

| S-EPMC8233375 | biostudies-literature
| S-EPMC9588024 | biostudies-literature
| S-EPMC5341813 | biostudies-literature
| S-EPMC10584818 | biostudies-literature
| S-EPMC8373607 | biostudies-literature
| S-EPMC11788335 | biostudies-literature
| S-EPMC5805571 | biostudies-literature
| S-EPMC10564922 | biostudies-literature
| S-EPMC1838650 | biostudies-literature
| S-EPMC5900565 | biostudies-literature