간세포핵인자4α
Hepatocyte nuclear factor 4 alphaNR2A1(핵수용체 서브패밀리 2, 그룹 A, 멤버 1)이라고도 하는 간세포 핵인자 4 알파(HNF4A)는 인체에서 HNF4A [5][6]유전자에 의해 암호화되는 핵수용체이다.
기능.
HNF-4α는 DNA를 호모디머로 결합하는 핵전사인자다.암호화된 단백질은 여러 간 유전자의 발현을 조절하는 전사 인자인 간세포 핵 인자 1 알파를 포함한 여러 유전자의 발현을 조절합니다.이 유전자는 간, 신장, 장의 발달에 역할을 한다.이 유전자의 대체 스플라이싱은 다중 전사 [7]변형을 일으킨다.
HNF4A는 CYP3A4의 [8]PXR 및 CAR 매개 전사 활성화에 필요하다.HNF4A 유전자의 유전자 돌연변이는 CYP2D6, 체외 및 [9][10]체내와 같은 HNF4α의 하류 단백질의 활성에 영향을 미칠 수 있다.
알칼로이드 베르베린은 HNF4A의 [11]발현을 상향 조절한다.
이 유전자는 또한 주로 간에서 만들어지는 중요한 당단백질인 SHBG의 발현과 합성에 중추적인 역할을 하며, 이는 인슐린 저항성을 낮추는 것 외에도 [citation needed]테스토스테론의 반감기를 연장시키는 데에도 도움이 됩니다.
HNF4A 유전자의 기능을 독립적 [12]검증에 기초한 siRNA 녹다운에 의해 효과적으로 검사할 수 있다.
임상적 의의
HNF4A 유전자의 돌연변이는 젊은이의 성숙기 당뇨병이라고 불리는 당뇨병, 특히 MODY [13]1과 관련이 있다. 이 유전자의 질병을 유발하는 돌연변이는 최소 56개이다.[14]
대장암에서 [15]간세포 핵인자 4α의 증폭이 관찰되었다.
그것은 또한 유전자의 [16]미센스 돌연변이로 인해 발생하는 판코니 증후군 표현형의 출현과도 관련이 있다.
상호 작용
간세포 핵인자 4 알파는 다음과 상호작용하는 것으로 나타났다.
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레퍼런스
- ^ a b c GRCh38: 앙상블 릴리즈 89: ENSG000001076 - 앙상블, 2017년 5월
- ^ a b c GRCm38: 앙상블 릴리즈 89: ENSMUSG000017950 - 앙상블, 2017년 5월
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- ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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- ^ Argyrokastritis A, Kamakari S, Kapsetaki M, Kritis A, Talianidis I, Moschonas NK (Feb 1997). "Human hepatocyte nuclear factor-4 (hHNF-4) gene maps to 20q12-q13.1 between PLCG1 and D20S17". Human Genetics. 99 (2): 233–6. doi:10.1007/s004390050345. PMID 9048927. S2CID 10943721.
- ^ "Entrez Gene: HNF4A hepatocyte nuclear factor 4, alpha".
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- ^ Lee SS, Cha EY, Jung HJ, Shon JH, Kim EY, Yeo CW, Shin JG (2008). "Genetic polymorphism of hepatocyte nuclear factor-4alpha influences human cytochrome P450 2D6 activity". Hepatology. 48 (2): 635–45. doi:10.1002/hep.22396. PMID 18666237. S2CID 205866107.
- ^ Jiang F, Yeo CW, Lee SS, Oh MK, Ghim JL, Shon JH, Kim HS, Kim EY, Kim DH, Shin JG (2013). "Effect of HNF4α genetic polymorphism G60D on the pharmacokinetics of CYP2D6 substrate tolterodine in healthy Korean individuals". Pharmacogenetics and Genomics. 23 (3): 175–9. doi:10.1097/FPC.0b013e32835de25e. PMID 23292115. S2CID 19230792.
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- ^ Munkácsy, Gyöngyi; Sztupinszki, Zsófia; Herman, Péter; Bán, Bence; Pénzváltó, Zsófia; Szarvas, Nóra; Győrffy, Balázs (2016-01-01). "Validation of RNAi Silencing Efficiency Using Gene Array Data shows 18.5% Failure Rate across 429 Independent Experiments". Molecular Therapy: Nucleic Acids. 5 (9): e366. doi:10.1038/mtna.2016.66. ISSN 2162-2531. PMC 5056990. PMID 27673562.
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- ^ Zhang B, Wang J, Wang X, Zhu J, Liu Q, Shi Z, et al. (2014). "Proteogenomic characterization of human colon and rectal cancer". Nature. 513 (7518): 382–7. Bibcode:2014Natur.513..382.. doi:10.1038/nature13438. PMC 4249766. PMID 25043054.
- ^ Kashoor I, Batlle D (September 2019). "Proximal renal tubular acidosis with and without Fanconi syndrome". Kidney Research and Clinical Practice. 38 (3): 267–281. doi:10.23876/j.krcp.19.056. PMC 6727890. PMID 31474092.
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- ^ a b Malik S, Wallberg AE, Kang YK, Roeder RG (Aug 2002). "TRAP/SMCC/mediator-dependent transcriptional activation from DNA and chromatin templates by orphan nuclear receptor hepatocyte nuclear factor 4". Molecular and Cellular Biology. 22 (15): 5626–37. doi:10.1128/MCB.22.15.5626-5637.2002. PMC 133960. PMID 12101254.
- ^ Lee YK, Dell H, Dowhan DH, Hadzopoulou-Cladaras M, Moore DD (Jan 2000). "The orphan nuclear receptor SHP inhibits hepatocyte nuclear factor 4 and retinoid X receptor transactivation: two mechanisms for repression". Molecular and Cellular Biology. 20 (1): 187–95. doi:10.1128/MCB.20.1.187-195.2000. PMC 85074. PMID 10594021.
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추가 정보
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