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GeneBe

12-27495772-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001395208.2(SMCO2):c.750A>G(p.Ile250Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000169 in 1,541,300 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000016 ( 1 hom. )

Consequence

SMCO2
NM_001395208.2 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.17
Variant links:
Genes affected
SMCO2 (HGNC:34448): (single-pass membrane protein with coiled-coil domains 2) Predicted to be integral component of 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 -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.015257746).
BP6
Variant 12-27495772-A-G is Benign according to our data. Variant chr12-27495772-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 2468312.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMCO2NM_001395208.2 linkuse as main transcriptc.750A>G p.Ile250Met missense_variant 8/9 ENST00000535986.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMCO2ENST00000535986.2 linkuse as main transcriptc.750A>G p.Ile250Met missense_variant 8/95 NM_001395208.2

Frequencies

GnomAD3 genomes
AF:
0.0000266
AC:
4
AN:
150344
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000442
Gnomad OTH
AF:
0.000483
GnomAD3 exomes
AF:
0.0000382
AC:
6
AN:
156950
Hom.:
1
AF XY:
0.0000361
AC XY:
3
AN XY:
83002
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000406
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:
0.0000820
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000158
AC:
22
AN:
1390840
Hom.:
1
Cov.:
30
AF XY:
0.0000175
AC XY:
12
AN XY:
685774
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000561
Gnomad4 ASJ exome
AF:
0.0000401
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000158
Gnomad4 OTH exome
AF:
0.0000174
GnomAD4 genome
AF:
0.0000266
AC:
4
AN:
150460
Hom.:
0
Cov.:
31
AF XY:
0.0000136
AC XY:
1
AN XY:
73560
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000442
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000451
Hom.:
0

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJan 26, 2023This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.72
Cadd
Benign
0.69
Dann
Benign
0.34
DEOGEN2
Benign
0.0025
T;T;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.00036
N
LIST_S2
Benign
0.25
T;T;.
M_CAP
Benign
0.00084
T
MetaRNN
Benign
0.015
T;T;T
MetaSVM
Benign
-0.99
T
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.29
T
PROVEAN
Benign
0.92
N;N;N
REVEL
Benign
0.040
Sift
Benign
0.77
T;T;T
Sift4G
Benign
1.0
T;T;T
Polyphen
0.0
.;B;B
Vest4
0.017
MutPred
0.21
.;Gain of catalytic residue at M255 (P = 0.002);Gain of catalytic residue at M255 (P = 0.002);
MVP
0.014
ClinPred
0.045
T
GERP RS
2.4
Varity_R
0.042
gMVP
0.018

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: rs566187249; hg19: chr12-27648705; API