Arrestin beta 2, həmçinin arrestin beta-2 olaraq da bilinir — insanlarda ARRB2 geni ilə kodlanan hüceyrədaxili zülal.
ARRB2 | |||||||||||||||||||||||||
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, ARB2, ARR2, BARR2, Arrestin beta 2 | |||||||||||||||||||||||||
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Species | Human | Mouse | |||||||||||||||||||||||
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Arrestin beta 2 zülal ailəsinin üzvlərinin G zülalı ilə əlaqəli reseptorların agonist vasitəçiliyi ilə desensitizasiyasında iştirak etdiyi və hormonlar, neyrotransmitterlər və ya duyğu siqnalları kimi stimullara hüceyrə reaksiyalarının spesifik şəkildə yatırılmasına səbəb olduğu düşünülür. Arrestin beta 2 zülalı həmçinin müstəqil siqnal roluna malikdir.
Arrestin beta 2, arrestin beta 1 kimi, beta-adrenergik reseptor funksiyasını in vitro inhibe edir. Mərkəzi sinir sistemində yüksək səviyyədə ifadə edilir və sinoptik reseptorların tənzimlənməsində rol oynaya bilər.
Beyinlə yanaşı, arrestin beta 2 üçün tamamlayıcı DNTqalxanabənzər vəzindən təcrid edilmişdir və beləliklə, o, tirotropin reseptorlarının hormon-spesifik desensitizasiyasında da iştirak edə bilər. Bu gen üçün bir çox alternativ olaraq birləşdirilmiş transkript variantları tapılmışdır, lakin bəzi variantların tam aydın təbiəti müəyyən edilməmişdir.[13]
Zülal 5-HT2A reseptor siqnalında agonist DOI ilə qarşılıqlı əlaqədə ola bilər.
Arrestin beta 2 morfin və digər opioidlərə qarşı dözümlülüyün inkişafı üçün vacibdir.
Qarşılıqlı əlaqələri
Arrestin beta 2 ilə qarşılıqlı əlaqədə olanlar:
- AP2B1,
- PSCD2,
- Mdm2, və
- RALGDS.
İstinadlar
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Ədəbiyyatı
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