Fel is a commune in the Orne department in north-western France.
Fel d 1 is a protein that in cats is encoded by the CH1 (chain 1/Fel d 1-A) and CH2 (chain 2/Fel d 1-B) genes.
Fel d 1, produced largely in cat saliva and sebaceous glands, is the primary allergen present on cats and kittens. Fel d 1 is also produced by cat skin itself. The protein is of an unknown function to the animal but causes an IgG or IgE reaction in sensitive humans (either as an allergic or asthmatic response). Removal of soft surfaces in the home (carpet, furniture), frequent washings of bed linens, HEPA filters and even washing cats has been proven to reduce the amounts of Fel d 1 present in the home.
Neutered males produce Fel d 1 in levels similar to females (both intact and spayed females produce Fel d 1 in similar levels). Even though females and neutered males produce Fel d 1 in lower levels, they still produce enough to cause allergic symptoms in sensitive individuals.
The complete quaternary structure of Fel d 1 has been determined. The allergen is a tetrameric glycoprotein consisting of two disulfide-linked heterodimers of [chains 1 and 2. Fel d 1 chains 1 and 2 share structural similarity with uteroglobin, a secretoglobin superfamily member; chain 2 is a glycoprotein with N-linked oligosaccharides. Both chains share an all alpha-helical structure.
Hideg a reggel
Szzezer ember
Lehajtott fejjel
Most is hossz tra kel
Hiba rzem
Hogy ma kztk vagy ppen
Az arcokat nzem
Hogy klnbzni melyik mer
Ismerj Fel
A vros a szemedbe nevet
Az g alatt nincsen ma helyed
Most egyedl n tudom a neved
Ma tallkoznunk kell
Ismerj fel
A vros a szemedbe nevet
Az g alatt nincsen ma helyed
Most egyedl n tudom a neved
Ma tallkoznunk kell
Ismerj fel
Tzes a nappal
Ttova angyal
Megolvadt szrnyad
tbb nem repthet el
A vros a szemedbe nevet
Az g alatt nincsen ma helyed
Most egyedl n tudom a neved
Ma tallkoznunk kell
Ismerj fel
A vros a szemedbe nevet
Az g alatt nincsen ma helyed
Most egyedl n tudom a neved
Ma tallkoznunk kell