5-42711291-C-T
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong
The NM_000163.5(GHR):c.703C>T(p.Arg235*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,612,586 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R235R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_000163.5 stop_gained
Scores
Clinical Significance
Conservation
Publications
- Laron syndromeInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
- short stature due to partial GHR deficiencyInheritance: Unknown, AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Pathogenic. The variant received 16 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000658 AC: 10AN: 152086Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251378 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 0.00000822 AC: 12AN: 1460500Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5AN XY: 726660 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000658 AC: 10AN: 152086Hom.: 0 Cov.: 32 AF XY: 0.000108 AC XY: 8AN XY: 74292 show subpopulations
ClinVar
Submissions by phenotype
Laron-type isolated somatotropin defect Pathogenic:4
The c.724C>T (p.Arg242Ter) variant in the GHR gene has been reported previously in the homozygous state in individuals with a clinical and biochemical phenotype consistent with Laron syndrome (Amselem et al., 1993; Berg et al., 1993; Storr et al., 2015). The stop gained variant in GHR gene has been reported to the ClinVar database as Pathogenic. The variant is novel (not in any individuals) in 1000 Genomes and has allele frequency of 0.002% in the gnomAD exomes database. This variant has been shown to cause loss of normal protein function through nonsense-mediated mRNA decay (Gorbenko del Blanco et al., 2012). The nucleotide change in GHR is predicted as conserved by GERP++ and PhyloP across 100 vertebrates. For these reasons, this variant has been classified as Pathogenic. -
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This variant is predicted to cause premature termination of the protein (p.Arg235Ter). The truncated protein is likely to lack the transmembrane domain and cytoplasmic domain of the protein [UniProt]; this will likely result in loss-of-function. The variant has been previously reported in individuals affected with Laron syndrome [PMID: 8488849, 17598975]. -
not provided Pathogenic:2
Reported in the heterozgyous state in a patient with severe growth retardation and growth hormone insensitivity without typical craniofacial or somatic features of Laron syndrome, and RNA studies in patient fibroblasts suggested that mutant transcripts are subject to nonsense-mediated decay (Gorbenko del Blanco et al., 2012); Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 16932322, 25525159, 8504296, 8488849, 25411237, 22117696, 28743110) -
This sequence change creates a premature translational stop signal (p.Arg235*) in the GHR gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in GHR are known to be pathogenic (PMID: 1999489, 8488849). This variant is present in population databases (rs121909363, gnomAD 0.02%). This premature translational stop signal has been observed in individual(s) with Laron syndrome (PMID: 8504296). This variant is also known as R217W. ClinVar contains an entry for this variant (Variation ID: 8639). 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. -
Laron-type isolated somatotropin defect;C0745103:Hypercholesterolemia, familial, 1;C1858656:Short stature due to partial GHR deficiency Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at