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The MAK-V protein kinase regulates endocytosis in mouse
I V Korobko1, E V Korobko, S L Kiselev
1Institute of Gene Biology, Russian Academy of Sciences, Moscow. igorvk@mx.ibg.relarn.ru
Abstract:
We report the cloning of a mouse cDNA encoding the MAK-V protein kinase, with a putative specificity for serine/threonine residues. The mak-v gene is transcribed in adult brain and in the mouse embryo from at least 7.5 dpc. Using the yeast two-hybrid system, we showed that MAK-V interacts with Rabaptin-5, a protein which plays an important role in endocytosis. Functional studies of the MAK-V protein suggest that it regulates endocytosis. We also constructed a human mak-v cDNA and localized the human mak-v gene at 21q22.11. Its chromosomal location suggests that mak-v could be involved in disorders of the nervous system, development or in malignancies.
Insights
Researchers cloned the mouse MAK-V protein kinase, finding it interacts with Rabaptin-5 and regulates endocytosis. Its human gene location suggests roles in nervous system disorders, development, or cancer.
Area of Science:
- Molecular Biology
- Cell Biology
- Genetics
Background:
- The MAK-V protein kinase, a serine/threonine kinase, has been identified.
- Its gene expression is detected in adult brain and embryonic mouse tissues.
Purpose of the Study:
- To clone and characterize the mouse MAK-V protein kinase.
- To investigate the function and interactions of MAK-V.
- To determine the human gene's location and potential disease associations.
Main Methods:
- Cloning of mouse and human MAK-V cDNA.
- Yeast two-hybrid system for protein interaction studies.
- Gene expression analysis in mouse tissues.
- Chromosomal localization of the human MAK-V gene.
Main Results:
- The mouse MAK-V cDNA was cloned, encoding a serine/threonine protein kinase.
- MAK-V was found to interact with Rabaptin-5, a key endocytosis protein.
- Functional studies indicate MAK-V regulates endocytosis.
- The human MAK-V gene was localized to chromosome 21q22.11.
Conclusions:
- MAK-V is a novel protein kinase involved in endocytosis.
- The human MAK-V gene's location suggests potential involvement in neurological disorders, developmental abnormalities, and malignancies.