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GeneBe

7-7573091-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_019005.4(MIOS):c.616C>T(p.Arg206Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,822 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

MIOS
NM_019005.4 missense

Scores

5
8
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91
Variant links:
Genes affected
MIOS (HGNC:21905): (meiosis regulator for oocyte development) Involved in cellular response to amino acid starvation; positive regulation of TOR signaling; and protein-containing complex localization. Located in several cellular components, including cytosol; lysosomal membrane; and nucleoplasm. Part of GATOR2 complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.823

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MIOSNM_019005.4 linkuse as main transcriptc.616C>T p.Arg206Cys missense_variant 4/13 ENST00000340080.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MIOSENST00000340080.9 linkuse as main transcriptc.616C>T p.Arg206Cys missense_variant 4/131 NM_019005.4 P1Q9NXC5-1
MIOSENST00000405785.5 linkuse as main transcriptc.616C>T p.Arg206Cys missense_variant 3/125 P1Q9NXC5-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249388
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135300
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461822
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 20, 2023The c.616C>T (p.R206C) alteration is located in exon 4 (coding exon 1) of the MIOS gene. This alteration results from a C to T substitution at nucleotide position 616, causing the arginine (R) at amino acid position 206 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Pathogenic
0.16
Cadd
Pathogenic
31
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.27
T;T
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Uncertain
0.89
D
M_CAP
Benign
0.056
D
MetaRNN
Pathogenic
0.82
D;D
MetaSVM
Benign
-0.30
T
MutationAssessor
Benign
1.6
L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.95
D
PROVEAN
Uncertain
-3.5
D;D
REVEL
Uncertain
0.42
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0020
D;D
Polyphen
1.0
D;D
Vest4
0.84
MutPred
0.60
Gain of catalytic residue at M204 (P = 0.0156);Gain of catalytic residue at M204 (P = 0.0156);
MVP
0.71
MPC
0.94
ClinPred
0.95
D
GERP RS
4.9
Varity_R
0.50
gMVP
0.71

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1428064398; hg19: chr7-7612722; API