3-44861940-G-T

Position:

chr3-44861940-G-T

Variant summary

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

The NM_144638.3(TMEM42):c.16G>T(p.Gly6Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000703 in 1,421,730 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

TMEM42
NM_144638.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.888

Variant links:

Genes affected

TMEM42 (HGNC:28444): (transmembrane protein 42) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM42 links:

MIR564 (HGNC:32820): (microRNA 564) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

MIR564 links:

KIF15 (HGNC:17273): (kinesin family member 15) Predicted to enable microtubule binding activity and microtubule motor activity. Predicted to be involved in microtubule-based movement. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

KIF15 links:

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=0.09725776).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
TMEM42	NM_144638.3 linkuse as main transcript	c.16G>T	p.Gly6Trp	missense_variant	1/3	ENST00000302392.5	NP_653239.1
MIR564	NR_030290.1 linkuse as main transcript	n.53G>T		non_coding_transcript_exon_variant	1/1
KIF15	XR_007095708.1 linkuse as main transcript	n.4368-6551G>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
TMEM42	ENST00000302392.5 linkuse as main transcript	c.16G>T	p.Gly6Trp	missense_variant	1/3	1	NM_144638.3	ENSP00000306564	P1
MIR564	ENST00000385049.1 linkuse as main transcript	n.53G>T		non_coding_transcript_exon_variant	1/1
TMEM42	ENST00000477126.1 linkuse as main transcript	n.37G>T		non_coding_transcript_exon_variant	1/2	1
KIF15	ENST00000422209.1 linkuse as main transcript	c.*59+9146G>T		intron_variant, NMD_transcript_variant		3		ENSP00000391205

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000289

AC:

AN:

34612

Hom.:

AF XY:

0.0000495

AC XY:

AN XY:

20192

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:

0.00

Gnomad OTH exome

AF:

0.00105

GnomAD4 exome

AF:

0.00000551

AC:

AN:

1269502

Hom.:

Cov.:

AF XY:

0.00000646

AC XY:

AN XY:

619658

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000235

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:

9.77e-7

Gnomad4 OTH exome

AF:

0.0000385

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152228

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000945

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

Feb 12, 2024

The c.16G>T (p.G6W) alteration is located in exon 1 (coding exon 1) of the TMEM42 gene. This alteration results from a G to T substitution at nucleotide position 16, causing the glycine (G) at amino acid position 6 to be replaced by a tryptophan (W). 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

0.11

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Benign

0.79

DEOGEN2

Benign

0.0077

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.30

M_CAP

Benign

0.017

MetaRNN

Benign

0.097

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.0

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.61

PROVEAN

Benign

-1.0

REVEL

Benign

0.029

Sift

Uncertain

0.027

Sift4G

Uncertain

0.044

Polyphen

0.28

Vest4

0.24

MutPred

0.20

Loss of relative solvent accessibility (P = 0.0404);

MVP

0.014

MPC

0.31

ClinPred

0.057

GERP RS

2.2

Varity_R

0.052

gMVP

0.29

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