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GeneBe

6-87340212-T-C

Variant summary

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

The NM_001042493.3(SMIM8):c.232T>C(p.Tyr78His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000023 in 1,611,602 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

SMIM8
NM_001042493.3 missense

Scores

2
7
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.53
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]

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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
SMIM8NM_001042493.3 linkuse as main transcriptc.232T>C p.Tyr78His missense_variant 4/4 ENST00000392863.6
SMIM8NM_020425.6 linkuse as main transcriptc.232T>C p.Tyr78His missense_variant 3/3
SMIM8NM_001287445.2 linkuse as main transcriptc.136-1014T>C intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMIM8ENST00000392863.6 linkuse as main transcriptc.232T>C p.Tyr78His missense_variant 4/41 NM_001042493.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152076
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000403
AC:
10
AN:
248312
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134220
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:
0.0000888
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000247
AC:
36
AN:
1459526
Hom.:
0
Cov.:
30
AF XY:
0.0000234
AC XY:
17
AN XY:
726042
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:
0.0000324
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152076
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74286
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000579
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000330
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 GeneticsNov 17, 2022The c.232T>C (p.Y78H) alteration is located in exon 4 (coding exon 2) of the SMIM8 gene. This alteration results from a T to C substitution at nucleotide position 232, causing the tyrosine (Y) at amino acid position 78 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
0.17
BayesDel_addAF
Uncertain
0.057
T
BayesDel_noAF
Uncertain
0.040
Cadd
Pathogenic
27
Dann
Uncertain
1.0
DEOGEN2
Benign
0.27
T;T;T;T
Eigen
Uncertain
0.68
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.97
D
M_CAP
Benign
0.034
D
MetaRNN
Uncertain
0.54
D;D;D;D
MetaSVM
Uncertain
-0.14
T
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.50
T
Sift4G
Benign
0.12
T;T;T;T
Polyphen
1.0
D;D;D;D
Vest4
0.63
MVP
0.040
MPC
0.25
ClinPred
0.92
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.49
gMVP
0.78

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: rs768510390; hg19: chr6-88049930; API