rs377368053
Variant summary
Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong
The NM_022356.4(P3H1):c.1838+5G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000528 in 1,608,498 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_022356.4 splice_region, intron
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 -4 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| P3H1 | NM_022356.4 | c.1838+5G>T | splice_region_variant, intron_variant | Intron 12 of 14 | ENST00000296388.10 | NP_071751.3 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| P3H1 | ENST00000296388.10 | c.1838+5G>T | splice_region_variant, intron_variant | Intron 12 of 14 | 1 | NM_022356.4 | ENSP00000296388.5 |
Frequencies
GnomAD3 genomes AF: 0.000210 AC: 32AN: 152194Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000284 AC: 71AN: 249890 AF XY: 0.000288 show subpopulations
GnomAD4 exome AF: 0.000562 AC: 818AN: 1456304Hom.: 0 Cov.: 30 AF XY: 0.000552 AC XY: 400AN XY: 724838 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000210 AC: 32AN: 152194Hom.: 0 Cov.: 32 AF XY: 0.000242 AC XY: 18AN XY: 74348 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Osteogenesis imperfecta type 8 Uncertain:3
This sequence change falls in intron 12 of the P3H1 gene. It does not directly change the encoded amino acid sequence of the P3H1 protein. It affects a nucleotide within the consensus splice site. This variant is present in population databases (rs377368053, gnomAD 0.06%). 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: 468975). Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing. 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. -
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Osteogenesis imperfecta Uncertain:1
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Osteogenesis Imperfecta, Recessive Uncertain:1
This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at