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Updated: Aug 16, 2026

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Published on: June 3, 2022
Diversification of CDK11 transcripts during chicken testis development and regression
Victor P Francone1, Jovita Mezquita
1Departament de Ciències Fisiològiques I, Laboratori de Genètica Molecular, Institut d'Investigacions Biomediques August Pi i Sunyer, Facultat de Medicina, Universitat de Barcelona, Barcelona, Spain. vfrancone@uchc.edu
Abstract:
CDK11 (cyclin-dependent kinase 11, formerly known as PITSLRE) is a serine/threonine kinase that associates with the cyclin L2 regulatory partner. CDK11 catalytic activity has been associated with apoptosis, transcription, and RNA processing. Here, we identify novel chicken testis CDK11 transcripts that differ in their 5'UTR, 3'UTR, splicing of the exon 6, and polyadenylation. We have also characterized the differential expression of CDK11 in somatic tissues, during testis development and upon testicular regression by diethylstilbestrol (DES) treatment. The heterogeneity of CDK11 transcripts presented in this study suggests new possibilities for post-transcriptional regulation.
Insights
Cyclin-dependent kinase 11 (CDK11) exhibits diverse transcript variants in chicken testes, impacting gene regulation. These findings reveal novel CDK11 forms and expression patterns, suggesting complex post-transcriptional control mechanisms.
Area of Science:
- Molecular Biology
- Genetics
- Cell Biology
Background:
- CDK11 (cyclin-dependent kinase 11), also known as PITSLRE, is a serine/threonine kinase.
- CDK11 is linked to crucial cellular processes including apoptosis, transcription, and RNA processing.
Purpose of the Study:
- To identify and characterize novel chicken testis CDK11 transcripts.
- To investigate the differential expression of CDK11 in various tissues and developmental stages.
Main Methods:
- Analysis of CDK11 transcripts differing in 5'UTR, 3'UTR, exon 6 splicing, and polyadenylation.
- Characterization of CDK11 expression in somatic tissues, developing testes, and regressing testes after DES treatment.
Main Results:
- Novel chicken testis CDK11 transcripts with variations in UTRs, splicing, and polyadenylation were identified.
- Differential expression patterns of CDK11 were observed across somatic tissues and during testis development and regression.
Conclusions:
- The heterogeneity of CDK11 transcripts suggests potential for complex post-transcriptional regulation.
- Understanding CDK11 transcript diversity is crucial for elucidating its role in gene regulation and cellular functions.
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