Contribution of Melanocortin Receptor Exoloops to Agouti-related Protein Binding
نویسندگان
چکیده
منابع مشابه
Contribution of melanocortin receptor exoloops to Agouti-related protein binding.
Agouti-related protein (AGRP) is an endogenous antagonist of melanocortin action that functions in the hypothalamic control of feeding behavior. Although previous studies have shown that AGRP binds three of the five known subtypes of melanocortin receptor, the receptor domains participating in binding and the molecular interactions involved are presently unknown. The present studies were design...
متن کاملCharacterization of Agouti-related protein binding to melanocortin receptors.
Agouti-related protein (AGRP) is a naturally occurring antagonist of melanocortin action that is thought to play an important role in the hypothalamic control of feeding behavior. The exact mechanism of AGRP and Agouti protein action has been difficult to examine, in part because of difficulties in producing homogeneous forms of these molecules that can be used for direct binding assays. In thi...
متن کاملMolecular determination of agouti-related protein binding to human melanocortin-4 receptor.
Agouti-related protein (AGRP) is an endogenous antagonist of the melanocortin-4 receptor (MC4R) that functions in the hypothalamic control of feeding behavior. Our previous studies have suggested that in addition to exoloops 2 and 3, several transmembrane domains of MC4R may be important for AGRP binding. However, the detailed molecular basis of MC4R domains in AGRP binding is presently unclear...
متن کاملHigh-resolution NMR structure of the chemically-synthesized melanocortin receptor binding domain AGRP(87-132) of the agouti-related protein.
The agouti-related protein (AGRP) is an endogenous antagonist of the melanocortin receptors MC3R and MC4R found in the hypothalamus and exhibits potent orexigenic (appetite-stimulating) activity. The cysteine-rich C-terminal domain of this protein, corresponding to AGRP(87-132), contains five disulfide bonds and exhibits receptor binding affinity and antagonism equivalent to that of the full-le...
متن کاملHypothalamic Expression of Melanocortin-4 Receptor and Agouti-related Peptide mRNAs During the Estrous Cycle of Rats
Melanocortin- 4 receptor (MC4R) and agouti- related peptide (AgRP) are involved in energy homeostasis in rats. According to MC4R and AgRP effects on luteinizing hormone (LH) secretion, they may influence the estrous cycle of rats. Therefore, the aim of this study was to investigate the expression of MC4R and AgRP mRNAs at different stages of estrous cycle in the rat’s hypothalamus. The estrous ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1999
ISSN: 0021-9258
DOI: 10.1074/jbc.274.20.14100