Related sites PNAS paper
Human Olfactory Receptor Database Exploratorium (HORDE) Yoav Gilad's home page
ChemCom, relying on its scientific excellence and its patented technological platform, expresses the whole repertoire of
human olfactory receptors.
Not exact matches
Humans have around 10,000
olfactory receptors.
But now a new study, published in Frontiers in Physiology, has found two
olfactory receptors in
human lung tissue.
«Function of
olfactory receptor in the
human heart identified: The new findings may be relevant in the long term for diabetic patients and patients with increased heart rates.»
New study has found two
olfactory receptors in
human lung tissue.»
First, they sequenced the same 50
olfactory receptor genes from two
humans, two chimpanzees, two gorillas, two orangutans, and two rhesus macaques.
For instance, in the
human genome we still see the remnants of the large
olfactory receptor gene family that gave our evolutionary ancestors a keen sense of smell, even though
humans no longer rely on them.
What is really happening, Turin posited, is that the approximately 350 types of
human smell
receptors perform an act of quantum tunneling when a new odorant enters the nostril and reaches the
olfactory nerve.
For
humans approximately two - thirds of these
receptors are no longer functional, possibly a consequence of the reduced importance of
olfactory function for
humans as compared to rodents or dogs, for example.
Trimmer, a geneticist, studies how differences in
olfactory receptor genes affect
human smell perception.
Dogs have keen senses of smell; they have 220 million
olfactory receptors in their nose, or 44 times more than
humans.
Scents — Dogs love to sniff and have up to 300 million
olfactory receptors in their noses (compared to about 6 million in
humans).
Canines have approximately 300 million
olfactory receptors in their noses, whereas
humans...
While this may hold true for
humans equipped with a mere 5 million
olfactory receptors, things are drastically different from a dog's standpoint.
Dogs possess 300 million
olfactory receptors in their noses, compared to about six million in
humans.
According to research from Auburn University, dogs have more than 220 million
olfactory receptors in their noses, while
humans have only 5 million.
As a dog inhales a scent, it settles into his spacious nasal cavity, which is divided into two chambers and, ACES reports, is home to more than 220 million
olfactory receptors (
humans have a measly 5 million).
While the front part of a dog's nose is almost entirely committed to respiration, the rest is committed to olfaction — the sense of smell — and since there are hundreds of millions more
olfactory receptors in a dog's nose compared to a
human's nose, a dog is able to smell more and detect a scent in much smaller quantities: «This means two things: A dog definitely experiences smells, odors — volatile molecules — that we don't,» Alexandra Horowitz, assistant professor at Barnard College and author of Inside of a Dog, told Modern Farmer.
Four of these six regions are located in known gene clusters: the protocadherin alpha cluster, two
olfactory receptor clusters and a recently identified
human microRNA cluster (Figure 2).