10-102918623-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM2PP2PP5BP4

The NM_017649.5(CNNM2):​c.143T>C​(p.Leu48Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 32)

Consequence

CNNM2
NM_017649.5 missense

Scores

4
3
12

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.10
Variant links:
Genes affected
CNNM2 (HGNC:103): (cyclin and CBS domain divalent metal cation transport mediator 2) This gene encodes a member of the ancient conserved domain containing protein family. Members of this protein family contain a cyclin box motif and have structural similarity to the cyclins. The encoded protein may play an important role in magnesium homeostasis by mediating the epithelial transport and renal reabsorption of Mg2+. Mutations in this gene are associated with renal hypomagnesemia. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2011]

Genome browser will be placed here

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;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), CNNM2. . Gene score misZ 4.4105 (greater than the threshold 3.09). Trascript score misZ 5.0056 (greater than threshold 3.09). GenCC has associacion of gene with hypomagnesemia, seizures, and intellectual disability 1, familial primary hypomagnesemia with normocalciuria and normocalcemia, renal hypomagnesemia 6.
PP5
Variant 10-102918623-T-C is Pathogenic according to our data. Variant chr10-102918623-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 996041.Status of the report is no_assertion_criteria_provided, 0 stars.
BP4
Computational evidence support a benign effect (MetaRNN=0.32629347). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNNM2NM_017649.5 linkuse as main transcriptc.143T>C p.Leu48Pro missense_variant 1/8 ENST00000369878.9
CNNM2NM_199076.3 linkuse as main transcriptc.143T>C p.Leu48Pro missense_variant 1/7
CNNM2NM_199077.3 linkuse as main transcriptc.143T>C p.Leu48Pro missense_variant 1/2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNNM2ENST00000369878.9 linkuse as main transcriptc.143T>C p.Leu48Pro missense_variant 1/81 NM_017649.5 P4Q9H8M5-1
CNNM2ENST00000369875.3 linkuse as main transcriptc.143T>C p.Leu48Pro missense_variant 1/21 Q9H8M5-3
CNNM2ENST00000433628.2 linkuse as main transcriptc.143T>C p.Leu48Pro missense_variant 1/72 A1Q9H8M5-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Hypomagnesemia, seizures, and intellectual disability 1 Pathogenic:1
Pathogenic, no assertion criteria providedresearchPhysiology, Radboud University Medical CenterJan 22, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.16
CADD
Benign
20
DANN
Benign
0.95
DEOGEN2
Benign
0.043
T;.;.
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.13
FATHMM_MKL
Benign
0.042
N
LIST_S2
Benign
0.69
T;T;T
M_CAP
Pathogenic
0.99
D
MetaRNN
Benign
0.33
T;T;T
MetaSVM
Benign
-0.65
T
MutationAssessor
Benign
0.0
N;N;N
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.90
D
PROVEAN
Benign
-0.74
N;N;N
REVEL
Uncertain
0.51
Sift
Uncertain
0.0070
D;D;D
Sift4G
Uncertain
0.012
D;D;D
Polyphen
0.38
B;.;P
Vest4
0.43
MutPred
0.57
Gain of relative solvent accessibility (P = 0.0082);Gain of relative solvent accessibility (P = 0.0082);Gain of relative solvent accessibility (P = 0.0082);
MVP
0.63
ClinPred
0.42
T
GERP RS
2.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.0
Varity_R
0.34
gMVP
0.89

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: rs1845510486; hg19: chr10-104678380; API