rs199935778
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_007289.4(MME):c.47C>A(p.Pro16Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000044 in 1,613,936 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 (★★).
Frequency
Consequence
NM_007289.4 missense
Scores
Clinical Significance
Conservation
Publications
- Charcot-Marie-Tooth disease axonal type 2TInheritance: SD, AR, AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
- MME-related autosomal dominant Charcot Marie Tooth disease type 2Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- spinocerebellar ataxia 43Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
- Charcot-Marie-Tooth disease type 2TInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- congenital membranous nephropathy due to maternal anti-neutral endopeptidase alloimmunizationInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000125 AC: 19AN: 152078Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000398 AC: 10AN: 251476 AF XY: 0.0000515 show subpopulations
GnomAD4 exome AF: 0.0000356 AC: 52AN: 1461858Hom.: 0 Cov.: 31 AF XY: 0.0000371 AC XY: 27AN XY: 727228 show subpopulations
GnomAD4 genome AF: 0.000125 AC: 19AN: 152078Hom.: 0 Cov.: 33 AF XY: 0.000121 AC XY: 9AN XY: 74272 show subpopulations
ClinVar
Submissions by phenotype
not provided Uncertain:2
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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. ClinVar contains an entry for this variant (Variation ID: 1305169). This variant has not been reported in the literature in individuals affected with MME-related conditions. This variant is present in population databases (rs199935778, gnomAD 0.009%). This sequence change replaces proline, which is neutral and non-polar, with glutamine, which is neutral and polar, at codon 16 of the MME protein (p.Pro16Gln). -
In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -
Inborn genetic diseases Uncertain:1
The c.47C>A (p.P16Q) alteration is located in exon 2 (coding exon 1) of the MME gene. This alteration results from a C to A substitution at nucleotide position 47, causing the proline (P) at amino acid position 16 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Charcot-Marie-Tooth disease axonal type 2T;C4310763:Spinocerebellar ataxia 43 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at