表現型に関する遺伝的変異の因果関係を確立するには、十分な科学的証拠を取得する必要があります。 ACMG が提案する病原性分類では、良性、おそらく良性、重要性が不明瞭な変異体、おそらく病原性、および病原性の 5 つの分類カテゴリーが確立されています。これらのカテゴリは、検出された変異と表現型の間に因果関係がある確率に基づいて定義されます。たとえば、病原性があると分類された変異は病原性である確率が 90% であり、病原性と分類された変異は実際に病原性である確率が 99% です。これは、バリアントを VSI として分類するということは、バリアントが病原性である確率が 11 ~ 89% の間であることを意味します。

また、集団研究で得られたデータ、機能分析、コンピュータでの予測または分離研究からのデータから、さまざまなタイプの証拠を分析するためのシステムも提案しており、因果関係の帰属における各タイプのデータの相対的な重みに従ってそれらを分類しています(非常に強い、強力な、中程度の、支持的な証拠、またはそれ自体では十分な証拠ではない)。

配列決定研究で特定された変異体の病原性が文献に記載されており、因果関係の調査が実施されている場合には、その病原性を参照できるデータベースがいくつかあります。 クリンジェン は、この目的のために FDA が承認したデータベースです。
変異がこれまでに調査されていない場合は、健康な人と病原性変異の両方に関する人口データベース、および他の種類の証拠を検討する必要があります。 ヴァーサム は、複数のデータベース (ClinGen を含む) を使用して、ACMG 基準に従った自動解釈を提供する Web ツールです。
19955111
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