Research Article

Genome Sequencing of Idiopathic Speech Delay

Table 3

De novo exonic variants in the 10 speech delay proband-parent trios.

ProbandChrBase (GRCh37)Base (GRCh38)GeneTranscriptVariant effectcDNA changeProtein changegnomAD MAFpLIMIS_ZLocal missense toleranceSIFTPolyPhenREVELGERPClassification

1445597962455113457KDRNM_002253Stop-gainc.C823Tp.R275X01.00NANANANANA5.5VUS
152101620700101004238RPL31NM_000993Missensec.G188Ap.R63HNA1.6IntolerantTT0.774.2VUS
1635255618252522166STAB1NM_015136Missensec.A6401Gp.N2134S0NA1.1Slightly tolerantDP0.445.6VUS
17111872351518701968TMEM86ANM_153347Missensec.C682Tp.R228WNA0.9Slightly tolerantDD0.175.6VUS
18167732536977291472ADAMTS18NM_199355Missensec.G3196Cp.A1066P0NA-3.5Slightly intolerantDP0.231.5VUS
19191763181117521002PGLSNM_012088Missensec.C698Ap.T233N0NA0.2IntolerantTT0.095.3VUS

All rare nonsynonymous de novo variants in brain-expressed transcripts are listed; the variants are not filtered for (local) gene intolerance and predicted functional impact. Chr: chromosome; MAF: minor allele frequency; pLI: probability of being loss-of-function intolerant; MIS_Z: -score for missense constraint; SIFT: Sorting Intolerant From Tolerant; PolyPhen: Polymorphism Phenotyping; REVEL: rare exome variant ensemble learner; GERP: Genomic Evolutionary Rate Profiling; NA: not available/not applicable; T: tolerated/benign; P: possibly damaging; D: deleterious; VUS: variant of unknown significance.