Leptin Receptors

Supporting information

Leptin was initially thought to have a role in energy homeostasis and obesity. More recently, it has also been implicated in the regulation of reproduction, glucose homeostasis, bone formation, wound healing and the immune system. Leptin acts via leptin receptors, which are transmembrane catalytic receptors found on NPY/AgRP and α-MSH/CART neurons in hypothalamic nuclei.

Leptin receptors (Ob-Rs) are coded for by one human gene that produces six different isoforms; Ob-Ra to Ob-Rf. Ob-Rs exist as constitutive dimers at physiological expression levels. Only the Ob-Rb isoform can transduce intracellular signals and does so through activation of the JAK2/STAT3, PI 3-K and MAPK signaling cascades. Activation of Ob-Rs mediates transcriptional regulation of the hypothalamic melanocortin pathway and downregulates endocannabinoid expression.

Leptin resistance has been proposed as a pathophysiological mechanism of obesity. In obese individuals, Ob-Ra (which is involved in active transport of leptin across the blood-brain barrier) expression is downregulated and the individual may be unresponsive to leptin signals. Ob-R antagonists are of great interest in the development of pharmacological treatments for obesity.

View all products for Leptin Receptors »
Species Gene Symbol Gene Accession No. Protein Accession No.
Human LEPR NM_002303 P48357
Mouse Lepr NM_001122899 P48356
Rat Lepr NM_012596 Q9JHF4

Literature for Leptin Receptors

Peptides Involved in Appetite Modulation Scientific Review

A synopsis of the increasing number of peptides that have been implicated in appetite regulation and energy homeostasis, outlining the putative roles of most of the known proteins and lists compounds available from Tocris.

Download PDF | View all reviews
Peptides Involved in Appetite Modulation Scientific Review

Quick Order

Find multiple products by catalog number

divider line

Appetite Modulation

Written by S. Tucci et al

Peptides Involved in Appetite Modulation Scientific Review

Our Peptides Involved in Appetite Modulation review gives an overview of the peptides implicated in appetite regulation and energy homeostasis. View PDF today.

divider line

Twitter Updates

Follow @Tocris on Twitter

Follow us on Twitter!

Tocris is now actively tweeting. For regular updates on news, events and special offers, follow @Tocris on Twitter.