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GeneBe

12-14806148-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001013698.2(SMCO3):c.533C>T(p.Ala178Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,613,876 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SMCO3
NM_001013698.2 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.27
Variant links:
Genes affected
SMCO3 (HGNC:34401): (single-pass membrane protein with coiled-coil domains 3) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]
C12orf60 (HGNC:28726): (chromosome 12 open reading frame 60)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMCO3NM_001013698.2 linkuse as main transcriptc.533C>T p.Ala178Val missense_variant 2/2 ENST00000316048.2
C12orf60NM_175874.4 linkuse as main transcriptc.-25+2397G>A intron_variant ENST00000330828.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMCO3ENST00000316048.2 linkuse as main transcriptc.533C>T p.Ala178Val missense_variant 2/21 NM_001013698.2 P1
C12orf60ENST00000330828.3 linkuse as main transcriptc.-25+2397G>A intron_variant 1 NM_175874.4 P1
ENST00000651868.1 linkuse as main transcriptn.1041G>A non_coding_transcript_exon_variant 1/2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152014
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461862
Hom.:
0
Cov.:
30
AF XY:
0.00000413
AC XY:
3
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
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:
0.00000360
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152014
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74230
show subpopulations
Gnomad4 AFR
AF:
0.0000725
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.00000827
AC:
1

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 GeneticsFeb 12, 2024The c.533C>T (p.A178V) alteration is located in exon 2 (coding exon 1) of the SMCO3 gene. This alteration results from a C to T substitution at nucleotide position 533, causing the alanine (A) at amino acid position 178 to be replaced by a valine (V). 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
Uncertain
0.41
BayesDel_addAF
Uncertain
0.066
T
BayesDel_noAF
Benign
-0.14
Cadd
Pathogenic
26
Dann
Uncertain
1.0
DEOGEN2
Benign
0.024
T
Eigen
Uncertain
0.60
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.85
T
M_CAP
Benign
0.029
D
MetaRNN
Uncertain
0.71
D
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.0
L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-4.0
D
REVEL
Benign
0.26
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.85
MutPred
0.25
Loss of helix (P = 0.0072);
MVP
0.42
MPC
0.22
ClinPred
0.99
D
GERP RS
4.6
Varity_R
0.64
gMVP
0.81

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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: rs755400649; hg19: chr12-14959082; COSMIC: COSV99660955; COSMIC: COSV99660955; API