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GeneBe

12-14806438-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001013698.2(SMCO3):c.243G>C(p.Gln81His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000103 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

SMCO3
NM_001013698.2 missense

Scores

2
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.577
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 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.15762302).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMCO3NM_001013698.2 linkuse as main transcriptc.243G>C p.Gln81His missense_variant 2/2 ENST00000316048.2
C12orf60NM_175874.4 linkuse as main transcriptc.-25+2687C>G intron_variant ENST00000330828.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMCO3ENST00000316048.2 linkuse as main transcriptc.243G>C p.Gln81His missense_variant 2/21 NM_001013698.2 P1
C12orf60ENST00000330828.3 linkuse as main transcriptc.-25+2687C>G intron_variant 1 NM_175874.4 P1
ENST00000651868.1 linkuse as main transcriptn.1331C>G non_coding_transcript_exon_variant 1/2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249574
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135398
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461882
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
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:
0.0000135
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsMar 20, 2023The c.243G>C (p.Q81H) alteration is located in exon 2 (coding exon 1) of the SMCO3 gene. This alteration results from a G to C substitution at nucleotide position 243, causing the glutamine (Q) at amino acid position 81 to be replaced by a histidine (H). 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
0.29
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.44
Cadd
Benign
16
Dann
Uncertain
0.98
DEOGEN2
Benign
0.020
T
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.34
FATHMM_MKL
Benign
0.64
D
LIST_S2
Benign
0.61
T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.0
L
MutationTaster
Benign
1.0
D;N
PrimateAI
Benign
0.44
T
PROVEAN
Uncertain
-4.0
D
REVEL
Benign
0.17
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.99
D
Vest4
0.093
MutPred
0.17
Loss of stability (P = 0.0661);
MVP
0.14
MPC
0.028
ClinPred
0.84
D
GERP RS
1.5
Varity_R
0.54
gMVP
0.44

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: rs1432037864; hg19: chr12-14959372; API