评估SMARCB1变体分类和基因型-表型关系的断言在ClinVar中的一致性
Samarth Satish1, Matan Bone1, Deborah Ritter2
1University of Manchester, Oxford Road, Manchester, M13 9PL, USA.
Cancer genetics
|July 5, 2025
概括
致病性SMARCB1变体与斯万诺瘤,形瘤倾向综合征和棺材-西里斯综合征有关. 在ClinVar中不一致的报道阻碍了对这些门德尔乱的基因型-表型理解.
科学领域:
- 遗传学 是一个遗传学.
- 基因组医学是基因组医学.
- 生物信息学是一种生物信息学.
背景情况:
- 在SMARCB1基因的致病变体与多种门德尔疾病有关,包括斯万诺瘤症 (SM),形瘤倾向综合征 (RTPS1) 和棺材-西里斯综合征 (CSS).
- 建立清晰的基因型-表型相关性对于准确的诊断和患者管理至关重要,但目前的数据报告不一致.
研究的目的:
- 评估ClinVar中SMARCB1病原变异的变异特异数据的一致性和完整性.
- 根据ClinVar.中可用的数据,评估建立基因型-表型关系的可行性.
主要方法:
- 利用ClinVar,一个变种分类的公共数据库,提取59个SMARCB1致病变种的数据.
- 提取的突变类型,HGVS命名,提交者,出版物和相关疾病条件.
- 从实验室提交的疾病断言与引用的出版物中的疾病断言进行了比较.
主要成果:
- 分析了91份实验室提交和40篇引用的文章,涉及59种SMARCB1致病变体.
- 发现,在91份提交报告中,有40份缺乏任何疾病断言.
- 识别了与RTPS1,SM和CSS相关的不同变种类型和位置,但报告不一致性普遍存在.
结论:
- ClinVar是一个有价值的资源,但缺乏疾病断言和SMARCB1变异的不一致报告妨碍了建立明确的基因型-表型关系.
- 对于与多种门德尔乱相关的致病变体,如与SMARCB1相关的疾病,需要采用标准化的报告方法.
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