NPS(Neuro 펩타이드 S)는 인간과 포유류의 뇌 에서 발견되는 신경펩타이드로, 주로 편도체 의 뉴런과 배링턴 의 핵과 궤적 강압 사이에 생성되지만, NPS 반응 뉴런은 다른 많은 뇌 [5] [6] [7] 영역으로 돌출되어 있다.NPS는 G단백질결합수용체 NPSR 에 [8] [9] 특이적으로 결합한다. 동물 연구는 NPS가 불안 과 식욕을 억제 하고, 과도한 성욕을 포함한 각성과 과잉행동 을 유발 하며, 조건부 [10] [11] [12] [13] [14] [15] [16] 공포의 소멸에 중요한 역할을 한다는 것을 보여준다. 또한 랫드 및 [17] 인간에서 중림부 [16] 경로의 도파민 활성을 유의하게 증강 하고 운동성을 억제하고 장내 신경총의 NO를 통해 작용하는 신경크린 방식의 투과성을 증가시키는 것으로 나타났다.
합성 배위자 비펩타이드 NPS 수용체 길항제 SHA-68 은 동물에서 NPS의 영향을 차단하고 강산성 을 [18] 일으킨다. 또한 몇몇 펩타이드 유도 NPS 작용제 및 길항제도 [19] [20] [21] [22] [23] 개발되었습니다.
펩타이드 배열 다음은 발현되는 여러 대표적인 종에서 성숙한 신경펩타이드 S의 염기서열이다.
종. 순서 MW 인간적인 SFRNGVGTGMKKTSFQRAKS 2187.5 쥐. SFRNGVGSGVKKTSFRRAKQ 2210.5 마우스 SFRNGVGSGAKKTSFRRAKQ 2182.5 개, 침팬지 SFRNGVGTGMKKTSFRRAKS 2215.6 치킨. SFRNGVGSGIKKTSFRRAKS 2183.5 컨센서스 SFRNGVGxGXKKTSFxRAKx 없음
Pfam의 HMM 로고에 따르면, C 말단 성숙한 펩타이드 바로 N 말단으로 보존된 "KR" 절단 부위가 있다.
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