PUBLICATION
MRAP2a Binds and Modulates Activity and Localisation of Prokineticin Receptor 1 in Zebrafish
- Authors
- Fullone, M.R., Maftei, D., Vincenzi, M., Lattanzi, R., Miele, R.
- ID
- ZDB-PUB-240728-16
- Date
- 2024
- Source
- International Journal of Molecular Sciences 25(14): (Journal)
- Registered Authors
- Keywords
- MRAP2, prokineticin system, zebrafish PK2
- MeSH Terms
-
- Adaptor Proteins, Signal Transducing/metabolism
- Animals
- CHO Cells
- Cricetulus*
- Humans
- Protein Binding*
- Receptors, G-Protein-Coupled*/metabolism
- Receptors, Peptide/metabolism
- Zebrafish*/metabolism
- Zebrafish Proteins*/genetics
- Zebrafish Proteins*/metabolism
- PubMed
- 39063058 Full text @ Int. J. Mol. Sci.
Citation
Fullone, M.R., Maftei, D., Vincenzi, M., Lattanzi, R., Miele, R. (2024) MRAP2a Binds and Modulates Activity and Localisation of Prokineticin Receptor 1 in Zebrafish. International Journal of Molecular Sciences. 25(14):.
Abstract
The prokineticin system plays a role in hypothalamic neurons in the control of energy homeostasis. Prokineticin receptors (PKR1 and PKR2), like other G-protein-coupled receptors (GPCRs) are involved in the regulation of energy intake and expenditure and are modulated by the accessory membrane protein 2 of the melanocortin receptor (MRAP2). The aim of this work is to characterise the interaction and regulation of the non-melanocortin receptor PKR1 by MRAP2a in zebrafish (zMRAP2a) in order to use zebrafish as a model for the development of drugs targeting accessory proteins that can alter the localisation and activity of GPCRs. To this end, we first showed that zebrafish PKR1 (zPKR1) is able to interact with both zMRAP2a and human MRAP2 (hMRAP2). This interaction occurs between the N-terminal region of zPKR1 and the C-terminal domain of zMRAP2a, which shows high sequence identity with hMRAP2 and a similar propensity for dimer formation. Moreover, we demonstrated that in Chinese hamster ovary (CHO) cells, zMRAP2a or hMRAP2 are able to modulate zPKR1 activation induced by zebrafish PK2 (zPK2) resulting in an impaired ERK and STAT3 activation.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping