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GeneBe

6-87340147-C-T

Variant summary

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

The NM_001042493.3(SMIM8):c.167C>T(p.Thr56Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000207 in 1,447,528 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 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: 0.0000021 ( 0 hom. )

Consequence

SMIM8
NM_001042493.3 missense

Scores

5
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.72
Variant links:
Genes affected
SMIM8 (HGNC:21401): (small integral membrane protein 8) 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 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=0.20218718).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMIM8NM_001042493.3 linkuse as main transcriptc.167C>T p.Thr56Ile missense_variant 4/4 ENST00000392863.6
SMIM8NM_020425.6 linkuse as main transcriptc.167C>T p.Thr56Ile missense_variant 3/3
SMIM8NM_001287445.2 linkuse as main transcriptc.136-1079C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMIM8ENST00000392863.6 linkuse as main transcriptc.167C>T p.Thr56Ile missense_variant 4/41 NM_001042493.3 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000420
AC:
1
AN:
237880
Hom.:
0
AF XY:
0.00000778
AC XY:
1
AN XY:
128602
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:
0.00000915
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000207
AC:
3
AN:
1447528
Hom.:
0
Cov.:
30
AF XY:
0.00000278
AC XY:
2
AN XY:
719800
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:
0.00000271
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000378

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 22, 2023The c.167C>T (p.T56I) alteration is located in exon 4 (coding exon 2) of the SMIM8 gene. This alteration results from a C to T substitution at nucleotide position 167, causing the threonine (T) at amino acid position 56 to be replaced by an isoleucine (I). 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
0.31
BayesDel_addAF
Uncertain
0.032
T
BayesDel_noAF
Benign
-0.19
Cadd
Benign
21
Dann
Uncertain
1.0
DEOGEN2
Benign
0.095
T;T;T;T
Eigen
Benign
0.13
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.95
D
M_CAP
Benign
0.0069
T
MetaRNN
Benign
0.20
T;T;T;T
MetaSVM
Benign
-0.71
T
MutationTaster
Benign
0.99
D;D
PrimateAI
Benign
0.41
T
Sift4G
Uncertain
0.019
D;D;D;D
Polyphen
0.27
B;B;B;B
Vest4
0.26
MutPred
0.34
Gain of stability (P = 0.0205);Gain of stability (P = 0.0205);Gain of stability (P = 0.0205);Gain of stability (P = 0.0205);
MVP
0.13
MPC
0.043
ClinPred
0.82
D
GERP RS
4.7
Varity_R
0.16
gMVP
0.63

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs898996055; hg19: chr6-88049865; COSMIC: COSV57640296; COSMIC: COSV57640296; API