Article
When splicing is not all or none: GT>GC 5' splice-site variants as a model for intermediate effects and challenges in variant classification.
HGG advances - 9 Jul 2026
Lin Jin-Huan, Wu Hao, Tang Xin-Ying, Masson Emmanuelle, Stenson Peter D, Phillips Andrew D, Cooper David N, Férec Claude, Liao Zhuan, Zou Wen-Bin, Chen Jian-Min
Abstract excerpt
Variants with intermediate functional effects-neither fully disruptive nor functionally neutral-represent an under-recognized source of genetic complexity and define a functional gray zone that complicates variant classification. Here, we address this issue using GT>GC (+2T>C) 5' splice-site variants as a tractable model, as approximately 15%-18% of such substitutions retain variable levels of residual wild-type...
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