2-134718745-A-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM1BP4_ModerateBS2

The NM_030923.5(TMEM163):c.191T>G(p.Leu64Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000952 in 1,155,108 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000060 ( 0 hom. )

Consequence

TMEM163
NM_030923.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.53

Variant links:

Genes affected

TMEM163 (HGNC:25380): (transmembrane protein 163) Predicted to enable zinc ion binding activity. Predicted to be involved in zinc ion import into synaptic vesicle. Predicted to be located in early endosome membrane. Predicted to be active in intracellular vesicle and plasma membrane. Predicted to be integral component of synaptic vesicle membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMEM163 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM1

In a topological_domain Cytoplasmic (size 87) in uniprot entity TM163_HUMAN there are 4 pathogenic changes around while only 1 benign (80%) in NM_030923.5

BP4

Computational evidence support a benign effect (MetaRNN=0.22956714).

BS2

High AC in GnomAd at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TMEM163	NM_030923.5 linkuse as main transcript	c.191T>G	p.Leu64Arg	missense_variant	1/8	ENST00000281924.6
LOC105373629	XR_923354.4 linkuse as main transcript	n.456+178A>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TMEM163	ENST00000281924.6 linkuse as main transcript	c.191T>G	p.Leu64Arg	missense_variant	1/8	1	NM_030923.5	P1	Q8TC26-1
	ENST00000655237.1 linkuse as main transcript	n.380+178A>C		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

AF:

0.0000332

AC:

AN:

150496

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000597

AC:

AN:

1004612

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

474422

show subpopulations

Gnomad4 AFR exome

AF:

0.000298

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000332

AC:

AN:

150496

Hom.:

Cov.:

AF XY:

0.0000409

AC XY:

AN XY:

73414

show subpopulations

Gnomad4 AFR

AF:

0.000121

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000529

ExAC

AF:

0.0000200

AC:

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

Jul 11, 2023

The c.191T>G (p.L64R) alteration is located in exon 1 (coding exon 1) of the TMEM163 gene. This alteration results from a T to G substitution at nucleotide position 191, causing the leucine (L) at amino acid position 64 to be replaced by an arginine (R). 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

0.10

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Benign

0.025

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.30

FATHMM_MKL

Benign

0.51

LIST_S2

Benign

0.48

M_CAP

Pathogenic

0.72

MetaRNN

Benign

0.23

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

MutationTaster

Benign

0.52

PrimateAI

Pathogenic

0.88

PROVEAN

Benign

-0.60

REVEL

Benign

0.11

Sift

Benign

0.20

Sift4G

Uncertain

0.026

Polyphen

0.0

Vest4

0.19

MutPred

0.18

Gain of solvent accessibility (P = 0.0155);

MVP

0.055

MPC

1.0

ClinPred

0.31

GERP RS

3.9

Varity_R

0.26

gMVP

0.43

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.14

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