rs587776683
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_006261.5(PROP1):c.150delA(p.Arg53AspfsTer112) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000602 in 1,611,834 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. G50G) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_006261.5 frameshift
Scores
Clinical Significance
Conservation
Publications
- pituitary hormone deficiency, combined, 2Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
- combined pituitary hormone deficiencies, genetic formInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hypothyroidism due to deficient transcription factors involved in pituitary development or functionInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- panhypopituitarismInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Pathogenic. The variant received 16 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| PROP1 | NM_006261.5 | c.150delA | p.Arg53AspfsTer112 | frameshift_variant | Exon 2 of 3 | ENST00000308304.2 | NP_006252.4 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PROP1 | ENST00000308304.2 | c.150delA | p.Arg53AspfsTer112 | frameshift_variant | Exon 2 of 3 | 1 | NM_006261.5 | ENSP00000311290.2 |
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152158Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.0000863 AC: 21AN: 243216 AF XY: 0.0000984 show subpopulations
GnomAD4 exome AF: 0.0000610 AC: 89AN: 1459676Hom.: 0 Cov.: 32 AF XY: 0.0000703 AC XY: 51AN XY: 725922 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000526 AC: 8AN: 152158Hom.: 0 Cov.: 31 AF XY: 0.0000269 AC XY: 2AN XY: 74332 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Pituitary hormone deficiency, combined, 2 Pathogenic:10Other:1
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There are reports of spontaneous puberty with decline of gonadotropic function in individuals with PROP1 variants p.Arg120Cys, p.Phe88Ser, and c.150delA [Flück et al 1998]. -
This variant was classified as: Pathogenic. The following ACMG criteria were applied in classifying this variant: PVS1,PM2,PP5. -
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The variant is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.009%). Frameshift variant is predicted to result in a loss or disruption of normal protein function through nonsense-mediated decay (NMD) or protein truncation. Multiple pathogenic variants are reported downstream of the variant. The variant has been reported to be associated with PROP1 -related disorder (ClinVar ID: VCV000008102 / PMID: 30266296). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline. -
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NM_006261.4(PROP1):c.150delA(R53Dfs*112) is classified as pathogenic in the context of combined pituitary hormone deficiency, PROP1-related. Sources cited for classification include the following: PMID 17526936, 15472232, 15126542, 11549674, 26608600, 26886902 and 22024773. Classification of NM_006261.4(PROP1):c.150delA(R53Dfs*112) is based on the following criteria: The variant causes a premature termination codon that is not expected to be targeted by nonsense-mediated mRNA decay; however, literature evidence strongly supports pathogenicity. Please note: this variant was assessed in the context of healthy population screening. -
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not provided Pathogenic:3Uncertain:1
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This sequence change creates a premature translational stop signal (p.Arg53Aspfs*112) in the PROP1 gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 174 amino acid(s) of the PROP1 protein. This variant is present in population databases (rs587776683, gnomAD 0.02%). This premature translational stop signal has been observed in individuals with combined pituitary hormone deficiency (PMID: 15472232, 16735499, 21863341, 26608600, 28734020, 30266296). ClinVar contains an entry for this variant (Variation ID: 8102). Algorithms developed to predict the effect of variants on gene product structure and function are not available or were not evaluated for this variant. Experimental studies have shown that this premature translational stop signal affects PROP1 function (PMID: 16735499). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -
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Combined pituitary hormone deficiencies, genetic form Pathogenic:1
Variant summary: PROP1 c.150delA (p.Arg53AspfsX112) results in a premature termination codon, and although it is not predicted to undergo nonsense mediated decay, it is expected to cause a truncation of the encoded protein, which is a commonly known mechanism for disease. The variant allele was found at a frequency of 8.6e-05 in 243216 control chromosomes. This frequency is not significantly higher than estimated for a pathogenic variant in PROP1 causing Combined Pituitary Hormone Deficiency (8.6e-05 vs 0.0041), allowing no conclusion about variant significance. c.150delA has been reported in the literature in multiple individuals affected with Combined Pituitary Hormone Deficiency (e.g. Parks_1999, Riepe_2001, Halasz_2006). These data indicate that the variant is very likely to be associated with disease. The following publications have been ascertained in the context of this evaluation (PMID: 11549674, 10599689, 17526936). ClinVar contains an entry for this variant (Variation ID: 8102). Based on the evidence outlined above, the variant was classified as pathogenic. -
See cases Pathogenic:1
ACMG categories: PVS1,PS4,PM4,PP5 -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at