Variant chr8-30645359-T-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_001206847.2(SMIM18):c.50T>C(p.Leu17Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0000176 in 1,535,584 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

SMIM18
NM_001206847.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.39

Variant links:

Genes affected

SMIM18 (HGNC:42973): (small integral membrane protein 18) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

SMIM18 links:

GTF2E2 (HGNC:4651): (general transcription factor IIE subunit 2) The general transcription factor IIE (TFIIE) is part of the RNA polymerase II transcription initiation complex, recruiting TFIIH and being essential for promoter clearance by RNA polymerase II. TFIIE is a heterodimer (and sometimes heterotetramer) of alpha and beta subunits. The protein encoded by this gene represents the beta subunit of TFIIE. [provided by RefSeq, Jan 2017]

GTF2E2 links:

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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	Protein	UniProt
SMIM18	NM_001206847.2 linkuse as main transcript	c.50T>C	p.Leu17Pro	missense_variant	3/3	ENST00000517349.2	NP_001193776.1
GTF2E2	NM_002095.6 linkuse as main transcript	c.166+8074A>G		intron_variant		ENST00000355904.9	NP_002086.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SMIM18	ENST00000517349.2 linkuse as main transcript	c.50T>C	p.Leu17Pro	missense_variant	3/3	2	NM_001206847.2	ENSP00000428858	P1
GTF2E2	ENST00000355904.9 linkuse as main transcript	c.166+8074A>G		intron_variant		1	NM_002095.6	ENSP00000348168	P1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000156

AC:

AN:

128344

Hom.:

AF XY:

0.0000284

AC XY:

AN XY:

70300

show subpopulations

Gnomad AFR exome

AF:

0.000164

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:

0.0000210

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000181

AC:

AN:

1383348

Hom.:

Cov.:

AF XY:

0.0000205

AC XY:

AN XY:

682572

show subpopulations

Gnomad4 AFR exome

AF:

0.0000317

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:

0.0000185

Gnomad4 OTH exome

AF:

0.0000691

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000712

Hom.:

Bravo

AF:

0.0000189

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 submitter

clinical testing

Ambry Genetics

Jan 23, 2024

The c.50T>C (p.L17P) alteration is located in exon 3 (coding exon 1) of the SMIM18 gene. This alteration results from a T to C substitution at nucleotide position 50, causing the leucine (L) at amino acid position 17 to be replaced by a proline (P). 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

Uncertain

0.44

BayesDel_addAF

Uncertain

0.059

BayesDel_noAF

Uncertain

0.11

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.031

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.64

M_CAP

Benign

0.022

MetaRNN

Uncertain

0.60

MetaSVM

Uncertain

-0.22

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.74

PROVEAN

Uncertain

-3.2

REVEL

Uncertain

0.35

Sift

Uncertain

0.0080

Sift4G

Pathogenic

0.0

Vest4

0.73

MutPred

0.48

Gain of sheet (P = 0.0016);

MVP

0.47

ClinPred

0.23

GERP RS

5.7

Varity_R

0.84

gMVP

0.81

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over