9-105694746-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018112.3(TMEM38B):c.86C>T(p.Ser29Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000015 in 1,603,322 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000067 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

TMEM38B
NM_018112.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.62

Variant links:

Genes affected

TMEM38B (HGNC:25535): (transmembrane protein 38B) This gene encodes an intracellular monovalent cation channel that functions in maintenance of intracellular calcium release. Mutations in this gene may be associated with autosomal recessive osteogenesis. [provided by RefSeq, Oct 2012]

TMEM38B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.807

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM38B	NM_018112.3 link	c.86C>T	p.Ser29Leu	missense_variant	Exon 1 of 6	ENST00000374692.8	NP_060582.1	Q9NVV0
TMEM38B	XM_011518831.3 link	c.86C>T	p.Ser29Leu	missense_variant	Exon 1 of 7		XP_011517133.1
TMEM38B	XM_011518832.4 link	c.86C>T	p.Ser29Leu	missense_variant	Exon 1 of 4		XP_011517134.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM38B	ENST00000374692.8 link	c.86C>T	p.Ser29Leu	missense_variant	Exon 1 of 6	1	NM_018112.3	ENSP00000363824.3		Q9NVV0
TMEM38B	ENST00000434214 link	c.-193C>T		5_prime_UTR_variant	Exon 1 of 3	2		ENSP00000403026.1		X6RGH1

Frequencies

GnomAD3 genomes

AF:

0.0000668

AC:

AN:

149620

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000197

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:

0.0000295

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000200

AC:

AN:

249534

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135108

show subpopulations

Gnomad AFR exome

AF:

0.000124

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:

0.0000266

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000963

AC:

AN:

1453702

Hom.:

Cov.:

AF XY:

0.00000553

AC XY:

AN XY:

723186

show subpopulations

Gnomad4 AFR exome

AF:

0.0000904

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:

0.00000904

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.0000668

AC:

AN:

149620

Hom.:

Cov.:

AF XY:

0.0000550

AC XY:

AN XY:

72744

show subpopulations

Gnomad4 AFR

AF:

0.000197

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:

0.0000295

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000658

Hom.:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000595

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jun 27, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 29 of the TMEM38B protein (p.Ser29Leu). This variant is present in population databases (rs781171810, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with TMEM38B-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.19

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.92

M_CAP

Pathogenic

0.42

MetaRNN

Pathogenic

0.81

MetaSVM

Benign

-0.74

MutationAssessor

Uncertain

2.6

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-2.1

REVEL

Uncertain

0.34

Sift

Uncertain

0.016

Sift4G

Uncertain

0.0060

Polyphen

1.0

Vest4

0.73

MutPred

0.47

Loss of catalytic residue at S29 (P = 0.0517);

MVP

0.68

MPC

0.23

ClinPred

0.72

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.37

gMVP

0.81

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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