2-96816305-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000305510.4(CNNM3):​c.28C>T​(p.Arg10Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000637 in 1,287,580 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict 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. R10G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

CNNM3
ENST00000305510.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.577
Variant links:
Genes affected
CNNM3 (HGNC:104): (cyclin and CBS domain divalent metal cation transport mediator 3) Predicted to enable transmembrane transporter activity. Predicted to be involved in ion transport; magnesium ion homeostasis; and transmembrane transport. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.051319152).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CNNM3NM_017623.5 linkuse as main transcriptc.28C>T p.Arg10Trp missense_variant 1/8 ENST00000305510.4 NP_060093.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CNNM3ENST00000305510.4 linkuse as main transcriptc.28C>T p.Arg10Trp missense_variant 1/81 NM_017623.5 ENSP00000305449 P1Q8NE01-1
CNNM3ENST00000377060.7 linkuse as main transcriptc.28C>T p.Arg10Trp missense_variant 1/72 ENSP00000366260 Q8NE01-2

Frequencies

GnomAD3 genomes
AF:
0.000250
AC:
38
AN:
151906
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000328
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000442
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000519
AC:
1
AN:
19272
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
11024
show subpopulations
Gnomad AFR exome
AF:
0.000751
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:
0.0000387
AC:
44
AN:
1135674
Hom.:
0
Cov.:
31
AF XY:
0.0000422
AC XY:
23
AN XY:
545318
show subpopulations
Gnomad4 AFR exome
AF:
0.000807
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000594
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000200
Gnomad4 OTH exome
AF:
0.0000440
GnomAD4 genome
AF:
0.000250
AC:
38
AN:
151906
Hom.:
0
Cov.:
32
AF XY:
0.000243
AC XY:
18
AN XY:
74188
show subpopulations
Gnomad4 AFR
AF:
0.000725
Gnomad4 AMR
AF:
0.000328
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000442
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000264
ESP6500AA
AF:
0.000599
AC:
2
ESP6500EA
AF:
0.000139
AC:
1
ExAC
AF:
0.0000207
AC:
2

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 GeneticsJul 06, 2021The c.28C>T (p.R10W) alteration is located in exon 1 (coding exon 1) of the CNNM3 gene. This alteration results from a C to T substitution at nucleotide position 28, causing the arginine (R) at amino acid position 10 to be replaced by a tryptophan (W). 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
Benign
0.078
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.22
CADD
Benign
13
DANN
Benign
0.95
DEOGEN2
Benign
0.027
.;T
Eigen
Benign
-1.0
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.051
N
LIST_S2
Benign
0.61
T;T
M_CAP
Pathogenic
0.91
D
MetaRNN
Benign
0.051
T;T
MetaSVM
Benign
-0.60
T
MutationAssessor
Benign
0.34
N;N
MutationTaster
Benign
1.0
N;N
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
-0.19
N;N
REVEL
Benign
0.12
Sift
Benign
0.085
T;T
Sift4G
Benign
0.19
T;T
Polyphen
0.0020
B;B
Vest4
0.13
MVP
0.13
ClinPred
0.028
T
GERP RS
-0.18
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.058
gMVP
0.31

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs373318478; hg19: chr2-97482042; API