Molecular weight (DA)
14kD
Immunogen
Synthesized peptide derived from human protein . at AA range: 21-70
Specificity
OREX Polyclonal Antibody detects endogenous levels of protein.
Formulation
Liquid in PBS containing 50% glycerol, and 0.02% sodium azide.
Dilution rate
WB 1:500-2000 ELISA 1:5000-20000
Purification process (Immunogen)
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Background
hypocretin neuropeptide precursor(HCRT) Homo sapiens This gene encodes a hypothalamic neuropeptide precursor protein that gives rise to two mature neuropeptides, orexin A and orexin B, by proteolytic processing. Orexin A and orexin B, which bind to orphan G-protein coupled receptors HCRTR1 and HCRTR2, function in the regulation of sleep and arousal. This neuropeptide arrangement may also play a role in feeding behavior, metabolism, and homeostasis. [provided by RefSeq, Jan 2010],
Function
disease:Defects in HCRT are a cause of narcolepsy [MIM:161400]. Narcolepsy is a neurological disabling sleep disorder, characterized by excessive daytime sleepiness, sleep fragmentation, symptoms of abnormal rapid-eye-movement (REM) sleep, such as cataplexy, hypnagogic hallucinations, and sleep paralysis. Cataplexy is a sudden loss of muscle tone triggered by emotions, which is the most valuable clinical feature used to diagnose narcolepsy. Human narcolepsy is associated with a deficient orexin system. Orexins are absent and/or greatly diminished in the brain and cerebrospinal fluid (CSF) of most narcoleptic patients. Human narcolepsy is primarily a sporadically occurring disorder but familial clustering has been observed.,function:Neuropeptides that play a significant role in the regulation of food intake and sleep-wakefulness, possibly by coordinating the complex behavioral and physiol
Gene Name
HCRT OX PPORX PPOX
Protein name
Orexin (Hypocretin) (Hcrt) [Cleaved into: Orexin-A (Hypocretin-1) (Hcrt1); Orexin-B (Hypocretin-2) (Hcrt2)]
Fields
>>Neuroactive ligand-receptor interaction
Human protein sequence Database
O43612
Mouse protein sequence database
O55241
Rat protein sequence database
O55232
Cellular localization
Rough endoplasmic reticulum . Cytoplasmic vesicle . Cell junction, synapse . Associated with perikaryal rough endoplasmic reticulum as well as cytoplasmic large granular vesicles at synapses. .
Tissue expression
Abundantly expressed in subthalamic nucleus but undetectable in other brain regions tested (hypothalamus was not tested) and in heart, placenta, lung, liver, skeletal muscle, kidney and pancreas.
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