Genetic Variant SMIM14:p.Pro43Ser (chr4-39556568-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_174921.3(SMIM14):c.127C>T(p.Pro43Ser) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000245 in 1,589,120 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

SMIM14
NM_174921.3 missense, splice_region

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.74

Variant links:

Genes affected

SMIM14 (HGNC:27321): (small integral membrane protein 14) Predicted to act upstream of or within blastocyst hatching. Located in endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

SMIM14 links:

UGDH-AS1 (HGNC:40601): (UGDH antisense RNA 1)

UGDH-AS1 links:

Genome browser will be placed here

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 rank	MANE	Protein	UniProt
SMIM14	NM_174921.3 link	c.127C>T	p.Pro43Ser	missense_variant, splice_region_variant	Exon 4 of 5	ENST00000295958.10	NP_777581.1	Q96QK8A0A024R9U4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SMIM14	ENST00000295958.10 link	c.127C>T	p.Pro43Ser	missense_variant, splice_region_variant	Exon 4 of 5	1	NM_174921.3	ENSP00000295958.4		Q96QK8

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152050

Hom.:

Cov.:

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000262

AC:

AN:

228614

Hom.:

AF XY:

0.0000404

AC XY:

AN XY:

123874

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:

0.0000557

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000251

AC:

AN:

1437070

Hom.:

Cov.:

AF XY:

0.0000210

AC XY:

AN XY:

714540

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:

0.0000299

Gnomad4 OTH exome

AF:

0.0000506

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152050

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74262

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 28, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.127C>T (p.P43S) alteration is located in exon 4 (coding exon 3) of the SMIM14 gene. This alteration results from a C to T substitution at nucleotide position 127, causing the proline (P) at amino acid position 43 to be replaced by a serine (S). 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

Benign

-0.053

BayesDel_noAF

Benign

-0.15

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

T;T

Eigen

Pathogenic

1.1

Eigen_PC

Pathogenic

0.98

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.92

D;D

M_CAP

Uncertain

0.19

MetaRNN

Uncertain

0.65

D;D

MetaSVM

Uncertain

-0.12

PrimateAI

Uncertain

0.57

PROVEAN

Pathogenic

-5.8

D;D

REVEL

Uncertain

0.51

Sift

Benign

0.053

T;T

Sift4G

Benign

0.15

T;.

Polyphen

1.0

D;.

Vest4

0.46

MutPred

0.29

Gain of glycosylation at P43 (P = 0.0317);Gain of glycosylation at P43 (P = 0.0317);

MVP

0.34

MPC

1.4

ClinPred

0.94

GERP RS

5.3

Varity_R

0.42

gMVP

0.66

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