chr14-65076556-C-T
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2
The NM_002382.5(MAX):c.403G>A(p.Asp135Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000684 in 1,461,880 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D135E) has been classified as Uncertain significance.
Frequency
Consequence
NM_002382.5 missense
Scores
Clinical Significance
Conservation
Publications
- hereditary pheochromocytoma-paragangliomaInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
- pheochromocytomaInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
- polydactyly-macrocephaly syndromeInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.0000159 AC: 4AN: 251488 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461880Hom.: 0 Cov.: 34 AF XY: 0.00000963 AC XY: 7AN XY: 727238 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Pheochromocytoma Uncertain:1
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Hereditary cancer-predisposing syndrome Uncertain:1
The p.D135N variant (also known as c.403G>A), located in coding exon 5 of the MAX gene, results from a G to A substitution at nucleotide position 403. The aspartic acid at codon 135 is replaced by asparagine, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Hereditary pheochromocytoma-paraganglioma Uncertain:1
This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 135 of the MAX protein (p.Asp135Asn). This variant is present in population databases (rs201312694, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with MAX-related conditions. ClinVar contains an entry for this variant (Variation ID: 485704). Invitae Evidence Modeling incorporating data from in vitro experimental studies (internal data) indicates that this missense variant is not expected to disrupt MAX function with a negative predictive value of 95%. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at