rs772654104
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4
The NM_022356.4(P3H1):c.1616A>G(p.Tyr539Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,613,928 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_022356.4 missense
Scores
Clinical Significance
Conservation
Publications
- osteogenesis imperfecta type 8Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
- osteogenesis imperfecta type 2Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- osteogenesis imperfecta type 3Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152110Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000119 AC: 3AN: 251136 AF XY: 0.00000737 show subpopulations
GnomAD4 exome AF: 0.0000335 AC: 49AN: 1461818Hom.: 0 Cov.: 32 AF XY: 0.0000371 AC XY: 27AN XY: 727194 show subpopulations
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152110Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74300 show subpopulations
ClinVar
Submissions by phenotype
Osteogenesis imperfecta type 8 Uncertain:3
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The P3H1 c.1616A>G, p.Tyr539Cys variant (rs772654104), to our knowledge, is not reported in the medical literature but is reported as uncertain in ClinVar (Variation ID: 536812). This variant is found in the general population with an overall allele frequency of 0.001% ([3/251,136 alleles) in the Genome Aggregation Database. The tyrosine at codon 539 is weakly conserved, and computational analyses (SIFT: damaging, PolyPhen-2: benign) predict conflicting effects of this variant on protein structure/function. Due to limited information, the clinical significance of the p.Tyr539Cys variant is uncertain at this time. -
This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 539 of the P3H1 protein (p.Tyr539Cys). This variant is present in population databases (rs772654104, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with P3H1-related conditions. ClinVar contains an entry for this variant (Variation ID: 536812). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Inborn genetic diseases Uncertain:1
The c.1616A>G (p.Y539C) alteration is located in exon 11 (coding exon 11) of the P3H1 gene. This alteration results from a A to G substitution at nucleotide position 1616, causing the tyrosine (Y) at amino acid position 539 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at