12-14806581-C-T

Variant summary

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

The NM_001013698.2(SMCO3):​c.100G>A​(p.Asp34Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SMCO3
NM_001013698.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.203
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 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=0.016053706).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SMCO3NM_001013698.2 linkuse as main transcriptc.100G>A p.Asp34Asn missense_variant 2/2 ENST00000316048.2 NP_001013720.2
C12orf60NM_175874.4 linkuse as main transcriptc.-25+2830C>T intron_variant ENST00000330828.3 NP_787070.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SMCO3ENST00000316048.2 linkuse as main transcriptc.100G>A p.Asp34Asn missense_variant 2/21 NM_001013698.2 ENSP00000381895 P1
C12orf60ENST00000330828.3 linkuse as main transcriptc.-25+2830C>T intron_variant 1 NM_175874.4 ENSP00000331691 P1
ENST00000651868.1 linkuse as main transcriptn.1474C>T non_coding_transcript_exon_variant 1/2

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152084
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000294
Gnomad OTH
AF:
0.000480
GnomAD3 exomes
AF:
0.0000241
AC:
6
AN:
249430
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135320
show subpopulations
Gnomad AFR exome
AF:
0.0000647
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000278
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:
0.00000616
AC:
9
AN:
1461886
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
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:
0.000101
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152084
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74278
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000480
Alfa
AF:
0.000115
Hom.:
0
Bravo
AF:
0.0000416
ExAC
AF:
0.0000331
AC:
4

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 GeneticsAug 02, 2022The c.100G>A (p.D34N) alteration is located in exon 2 (coding exon 1) of the SMCO3 gene. This alteration results from a G to A substitution at nucleotide position 100, causing the aspartic acid (D) at amino acid position 34 to be replaced by an asparagine (N). 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
0.077
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.82
CADD
Benign
6.3
DANN
Benign
0.79
DEOGEN2
Benign
0.00063
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.025
N
LIST_S2
Benign
0.27
T
M_CAP
Benign
0.0052
T
MetaRNN
Benign
0.016
T
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
0.55
N
MutationTaster
Benign
0.77
N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-0.15
N
REVEL
Benign
0.032
Sift
Benign
0.81
T
Sift4G
Benign
0.48
T
Polyphen
0.0
B
Vest4
0.028
MVP
0.030
MPC
0.027
ClinPred
0.019
T
GERP RS
-3.0
Varity_R
0.053
gMVP
0.26

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: rs769794820; hg19: chr12-14959515; COSMIC: COSV53763222; COSMIC: COSV53763222; API