chr2-73830968-C-T
Variant summary
Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PM1PM2PP3PP5_Very_Strong
The NM_213622.4(STAMBP):c.112C>T(p.Arg38Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000113 in 1,614,042 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R38G) has been classified as Uncertain significance.
Frequency
Consequence
NM_213622.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 13 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
STAMBP | NM_213622.4 | c.112C>T | p.Arg38Cys | missense_variant | 2/10 | ENST00000394070.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
STAMBP | ENST00000394070.7 | c.112C>T | p.Arg38Cys | missense_variant | 2/10 | 1 | NM_213622.4 | P4 |
Frequencies
GnomAD3 genomes AF: 0.0000854 AC: 13AN: 152166Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000557 AC: 14AN: 251490Hom.: 0 AF XY: 0.0000883 AC XY: 12AN XY: 135918
GnomAD4 exome AF: 0.000116 AC: 169AN: 1461876Hom.: 0 Cov.: 31 AF XY: 0.000131 AC XY: 95AN XY: 727238
GnomAD4 genome AF: 0.0000854 AC: 13AN: 152166Hom.: 0 Cov.: 33 AF XY: 0.0000807 AC XY: 6AN XY: 74328
ClinVar
Submissions by phenotype
not provided Pathogenic:4
Pathogenic, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Jul 01, 2017 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen | Oct 23, 2020 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Jun 26, 2023 | In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 23542699, 32929933, 35723786, 35962715, 33149276) - |
Pathogenic, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Aug 07, 2022 | For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 50793). This missense change has been observed in individual(s) with microcephaly-capillary malformation syndrome (PMID: 23542699). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant is present in population databases (rs143739249, gnomAD 0.01%). This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 38 of the STAMBP protein (p.Arg38Cys). - |
Microcephaly-capillary malformation syndrome Pathogenic:4
Pathogenic, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Dec 30, 2013 | - - |
Pathogenic, no assertion criteria provided | literature only | OMIM | May 01, 2013 | - - |
Pathogenic, no assertion criteria provided | clinical testing | Génétique des Maladies du Développement, Hospices Civils de Lyon | - | - - |
Likely pathogenic, criteria provided, single submitter | curation | SIB Swiss Institute of Bioinformatics | May 31, 2018 | This variant is interpreted as a Likely Pathogenic, for Microcephaly-capillary malformation syndrome, in Autosomal Recessive manner. The following ACMG Tag(s) were applied: PM3 => For recessive disorders, detected in trans with a pathogenic variant (PMID:23542699). PP1 => Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease (PMID:23542699). PM2 => Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium. PS4-Supporting => PS4 downgraded in strength to Supporting (PMID:23542699). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at