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	~~<br>=~~ 5-HT5B ~~Receptor =~~		{{DISPLAYTITLE:5-HT5B receptor}}

	The '''5-HT5B receptor''' is a subtype of the 5-HT receptor family, which are receptors for the neurotransmitter serotonin (~~5-hydroxytryptamine,~~ 5-HT). This receptor is part of the G protein-coupled receptor (GPCR) superfamily, which plays a crucial role in ~~neurotransmission and~~ various physiological processes.		The '''5-HT5B receptor''' is a subtype of the [[5-HT receptor]] family, which are receptors for the neurotransmitter [[serotonin]] (5-HT). This receptor is part of the [[G protein-coupled receptor]] (GPCR) superfamily, which plays a crucial role in various physiological processes by mediating the effects of neurotransmitters, hormones, and other signaling molecules.

	== Structure ==		==Structure and Function==
	The 5-HT5B receptor~~, like other GPCRs,~~ is ~~characterized~~ by ~~its seven transmembrane domains~~. ~~These domains allow~~ the receptor ~~to span~~ the ~~cell membrane and interact with intracellular signaling molecules~~. The receptor~~'s structure enables it~~ to ~~bind serotonin and initiate a cascade of~~ intracellular ~~events~~.		The 5-HT5B receptor is encoded by the ''HTR5B'' gene. It is a member of the 5-HT5 receptor subfamily, which also includes the [[5-HT5A receptor]]. The 5-HT5B receptor is known to couple with [[G proteins]], which are intracellular proteins that transmit signals from the receptor to various effector pathways within the cell.

	~~== Expression ==~~		The primary function of the 5-HT5B receptor is to mediate the effects of serotonin in the central nervous system. However, unlike other serotonin receptors, the 5-HT5B receptor is not as well characterized, and its specific physiological roles remain less understood.
	The ~~expression~~ of the 5-HT5B receptor is ~~primarily found~~ in the central nervous system. However, ~~it is important to note that in humans~~, the 5-HT5B receptor ~~gene is considered a pseudogene, meaning it~~ is not ~~functional. In contrast~~, ~~this receptor is functional in rodents, where it is expressed in various brain regions, including the hippocampus~~ and ~~cortex~~.

	== ~~Function~~ ==		==Expression==
	~~In species where~~ the 5-HT5B receptor is ~~functional~~, ~~it is involved~~ in ~~modulating neurotransmission. The receptor's activation can influence various physiological processes, including mood regulation~~, ~~cognition~~, and ~~circadian rhythms~~. However, ~~due~~ to ~~its status as a pseudogene in humans,~~ the ~~direct functional implications~~ of the 5-HT5B receptor in ~~human physiology are~~ not ~~well understood~~.		The expression of the 5-HT5B receptor is primarily found in the [[central nervous system]], particularly in regions such as the [[hippocampus]], [[cerebellum]], and [[cortex]]. However, it is important to note that the expression of the 5-HT5B receptor is species-specific. For instance, in humans, the ''HTR5B'' gene is considered a pseudogene, meaning it does not produce a functional protein, whereas in rodents, the receptor is functional and expressed.

	== Pharmacology ==		==Pharmacology==
	The pharmacological profile of the 5-HT5B receptor ~~includes its ability~~ to bind serotonin and other ligands. ~~In rodents, studies have shown that the receptor can be targeted by~~ specific agonists and antagonists~~, which can help elucidate its role in~~ the ~~brain. However,~~ the ~~lack~~ of ~~a functional receptor in humans limits the direct~~ pharmacological ~~applications of these findings~~.		The pharmacological profile of the 5-HT5B receptor is not as extensively studied as other serotonin receptors. However, it is known to bind serotonin and potentially other ligands that interact with serotonin receptors. The lack of specific agonists and antagonists for the 5-HT5B receptor has limited the understanding of its pharmacological properties.

	== ~~Research and Implications~~ ==		==Clinical Significance==
	~~Research on~~ the 5-HT5B receptor has ~~primarily focused on~~ its role in ~~rodent models. These studies have provided~~ insights into the ~~potential functions~~ of ~~the~~ receptor ~~in mood regulation~~ and ~~other neurological processes. Understanding~~ the ~~receptor's role~~ in ~~these models can offer clues about the broader serotonergic system and its impact on behavior and mental health~~.		Due to its limited expression in humans, the 5-HT5B receptor has not been a major focus in clinical research. However, understanding its role in other species can provide insights into the evolutionary aspects of serotonin receptor function and the potential for targeting similar receptors in humans for therapeutic purposes.

	== ~~Conclusion~~ ==		==Research Directions==
	~~The~~ 5-HT5B receptor is ~~an intriguing component of the serotonergic system, particularly in non-human species where it is functional. While it is a pseudogene in humans, studying~~ its role in ~~other species can enhance our understanding of serotonin's diverse effects on~~ the brain and ~~behavior~~. ~~Further research~~ may ~~uncover more about~~ its ~~evolutionary significance and potential implications for understanding human neurobiology~~.		Current research on the 5-HT5B receptor is focused on understanding its role in the brain and its potential involvement in neurological and psychiatric disorders. Studies in animal models may help elucidate the receptor's function and its interactions with other neurotransmitter systems.

	== ~~References~~ ==		==Also see==
	* ~~Barnes, N. M., & Sharp, T. (1999). A review of central~~ 5-HT ~~receptors and their function. ''Neuropharmacology'', 38(8), 1083~~-~~1152.~~		* [[5-HT receptor]]
	* ~~Hoyer, D., Hannon, J. P., & Martin, G. R. (2002). Molecular, pharmacological and functional diversity of~~ 5-HT receptors~~. ''Pharmacology Biochemistry and Behavior'', 71(4), 533~~-~~554.~~		* [[Serotonin]]
	* Matthes, H. W., et al. (1998). The 5-HT5B receptor is a pseudogene in humans but encodes a functional receptor in rodents. ''Journal of Neurochemistry'', 70(1), 392-398.		* [[G protein-coupled receptor]]
			* [[Neurotransmitter]]
			* [[Central nervous system]]

			{{Receptor-stub}}
			{{Serotonin}}

			[[Category:5-HT receptors]]
			[[Category:G protein-coupled receptors]]
			[[Category:Neurotransmitter receptors]]

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<br>= 5-HT5B Receptor =

The '''5-HT5B receptor''' is a subtype of the 5-HT receptor family, which are receptors for the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). This receptor is part of the G protein-coupled receptor (GPCR) superfamily, which plays a crucial role in neurotransmission and various physiological processes.

== Structure ==
The 5-HT5B receptor, like other GPCRs, is characterized by its seven transmembrane domains. These domains allow the receptor to span the cell membrane and interact with intracellular signaling molecules. The receptor's structure enables it to bind serotonin and initiate a cascade of intracellular events.

== Expression ==
The expression of the 5-HT5B receptor is primarily found in the central nervous system. However, it is important to note that in humans, the 5-HT5B receptor gene is considered a pseudogene, meaning it is not functional. In contrast, this receptor is functional in rodents, where it is expressed in various brain regions, including the hippocampus and cortex.

== Function ==
In species where the 5-HT5B receptor is functional, it is involved in modulating neurotransmission. The receptor's activation can influence various physiological processes, including mood regulation, cognition, and circadian rhythms. However, due to its status as a pseudogene in humans, the direct functional implications of the 5-HT5B receptor in human physiology are not well understood.

== Pharmacology ==
The pharmacological profile of the 5-HT5B receptor includes its ability to bind serotonin and other ligands. In rodents, studies have shown that the receptor can be targeted by specific agonists and antagonists, which can help elucidate its role in the brain. However, the lack of a functional receptor in humans limits the direct pharmacological applications of these findings.

== Research and Implications ==
Research on the 5-HT5B receptor has primarily focused on its role in rodent models. These studies have provided insights into the potential functions of the receptor in mood regulation and other neurological processes. Understanding the receptor's role in these models can offer clues about the broader serotonergic system and its impact on behavior and mental health.

== Conclusion ==
The 5-HT5B receptor is an intriguing component of the serotonergic system, particularly in non-human species where it is functional. While it is a pseudogene in humans, studying its role in other species can enhance our understanding of serotonin's diverse effects on the brain and behavior. Further research may uncover more about its evolutionary significance and potential implications for understanding human neurobiology.

== References ==
* Barnes, N. M., & Sharp, T. (1999). A review of central 5-HT receptors and their function. ''Neuropharmacology'', 38(8), 1083-1152.
* Hoyer, D., Hannon, J. P., & Martin, G. R. (2002). Molecular, pharmacological and functional diversity of 5-HT receptors. ''Pharmacology Biochemistry and Behavior'', 71(4), 533-554.
* Matthes, H. W., et al. (1998). The 5-HT5B receptor is a pseudogene in humans but encodes a functional receptor in rodents. ''Journal of Neurochemistry'', 70(1), 392-398.

5-HT5B receptor - Revision history

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