FANCG
FANCGFANCG | |||||||||||||||||||||||||
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식별자 | |||||||||||||||||||||||||
별칭 | FANCG, FAAG, XRCC9, 팬코니 빈혈보완그룹 G, FA보완그룹 G | ||||||||||||||||||||||||
외부 ID | OMIM: 602956 MGI: 1926471 호몰로진: 3402 GeneCard: FANCG | ||||||||||||||||||||||||
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직교체 | |||||||||||||||||||||||||
종 | 인간 | 마우스 | |||||||||||||||||||||||
엔트레스 | |||||||||||||||||||||||||
앙상블 | |||||||||||||||||||||||||
유니프로트 | |||||||||||||||||||||||||
RefSeq(mRNA) | |||||||||||||||||||||||||
RefSeq(단백질) | |||||||||||||||||||||||||
위치(UCSC) | Cr 9: 35.07 – 35.08Mb | Chr 4: 43 – 43.01Mb | |||||||||||||||||||||||
PubMed 검색 | [3] | [4] | |||||||||||||||||||||||
위키다타 | |||||||||||||||||||||||||
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판코니 빈혈군 G단백질(Fanconi 빈혈군 G단백질)은 인간에서 FANCG 유전자에 의해 암호화된 단백질이다.[5][6][7]
함수

판코니 빈혈에 관련된 FANCG는 히그로마이신 B와 미토마이신 C 둘 다에 대한 저항을 유발한다.FANCG는 하우스키핑 유전자의 특징인 5프라임 GC가 풍부하게 번역되지 않은 영역을 포함하고 있다.622-아미노산 단백질은 N-terminus에 류신-지퍼 모티브가 있다.판코니 빈혈은 발달이상, 골수부전, 악성종양 조기발생 등 다양한 임상증상이 나타나는 자가 열성질환이다.최소 8개의 FA 유전자가 확인됐다.FANCG 유전자는 보완 그룹 G를 담당한다.[7]
모든 판코니 빈혈(FA)보완군의 임상 표현형은 비슷하다.이 표현형은 진행성 골수부전, 발암성, 전형적인 선천성 결함으로 특징지어진다.주요 세포 표현형은 DNA 손상에 대한 과민성, 특히 스트랜드간 DNA 교차 연결이다.FA 단백질은 다단백질 경로를 통해 상호작용한다.DNA 간 교차연계는 FA 단백질과 유방암 감수성 유전자 1(BRCA1)의 조율을 수반하는 동질 재조합에 의해 수리되는 매우 유해한 손상이지만, 이들 단백질의 정확한 생화학적 역할은 현재 불분명하다.
FANCG(FANCA, FANCB, FANCC, FANCF, FANCF, FANCL, FANCM뿐만 아니라 FANCCM도 포함하는 원자력 복합체)는 단유입성 이소폼에 대한 FANCD2 단백질의 활성화를 위해 필수적이다.[8]정상적이고 비혼합적인 경우, 세포 FANCD2는 DNA 손상에 반응하여 모노 입화된다.활성화된 FANCD2 단백질은 전리방사선 유도 집중 및 감수성 염색체의 시냅토네말 복합체에서 BRCA1(최소암 수용성 단백질)과 공동 국부화한다(그림: 참조).이중 Strand 손상 재조합 수리).
감수분열
활성화된 FANCD2 단백질은 감수성 재조합을 시작하기 전에, 아마도 시냅시스를 위한 염색체를 준비하거나 후속 재조합 사건을 조절하기 위해 기능할 수 있다.[15]
수컷과 암컷 FANCG 돌연변이 생쥐는 FA 환자의 표현형식과 일치하는 생식유전증, 저포고나드증, 생식능력 저하 등을 가지고 있다.[16][17]무뇨생쥐에서 FANCG 단백질은 렙토텐, 지고텐, 초기 파키테네 단계에서 정조세포, 프리렙토텐 정조세포, 정조세포로 표현된다.[18]
노화
FANCG의 상실은 전뇌 발달 중 신경생성자 세포사멸을 일으키는데, 이는 결함 있는 DNA 복구와 관련이 있을 가능성이 높다.[19](Sii-Felice 외, 2008).이러한 효과는 성인기에 지속되어 노화와 함께 신경줄기세포 풀의 고갈로 이어진다.FA 표현형은 줄기세포의 조기 노화로 해석할 수 있는데, DNA 손상은 노화의 원동력이 된다.([19]노화의 DNA 손상론도 엿보인다.
상호작용
FANCG는 FANCF와 상호작용하는 것으로 나타났다.[20][21][22][23]
FANCA,[22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39] FANCE[23][37][40], BRCA2.[41]
참조
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추가 읽기
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