Variant 22-17119566-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_031890.4(TMEM121B):c.1562G>A(p.Arg521Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,551,418 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/18 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: 0.000016 ( 0 hom. )

Consequence

TMEM121B
NM_031890.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.57

Variant links:

Genes affected

TMEM121B (HGNC:1844): (transmembrane protein 121B)

TMEM121B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.009146601).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM121B	NM_031890.4 linkuse as main transcript	c.1562G>A	p.Arg521Gln	missense_variant	1/1	ENST00000331437.4	NP_114096.1	Q9BXQ6-1
TMEM121B	NM_001163079.2 linkuse as main transcript	c.497G>A	p.Arg166Gln	missense_variant	2/2		NP_001156551.1	Q9BXQ6-2
TMEM121B	XM_011546124.3 linkuse as main transcript	c.1562G>A	p.Arg521Gln	missense_variant	1/2		XP_011544426.1	Q9BXQ6-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TMEM121B	ENST00000331437.4 linkuse as main transcript	c.1562G>A	p.Arg521Gln	missense_variant	1/1	6	NM_031890.4	ENSP00000329318.3		Q9BXQ6-1
TMEM121B	ENST00000399875.1 linkuse as main transcript	c.497G>A	p.Arg166Gln	missense_variant	2/2	2		ENSP00000382764.1		Q9BXQ6-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152198

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:

0.000579

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:

0.0000395

AC:

AN:

152068

Hom.:

AF XY:

0.0000244

AC XY:

AN XY:

81986

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000400

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000439

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000157

AC:

AN:

1399220

Hom.:

Cov.:

AF XY:

0.0000188

AC XY:

AN XY:

690930

show subpopulations

Gnomad4 AFR exome

AF:

0.0000314

Gnomad4 AMR exome

AF:

0.0000277

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000416

Gnomad4 SAS exome

AF:

0.0000125

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000277

Gnomad4 OTH exome

AF:

0.0000172

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000579

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.0000270

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

Oct 10, 2023

The c.1562G>A (p.R521Q) alteration is located in exon 1 (coding exon 1) of the CECR6 gene. This alteration results from a G to A substitution at nucleotide position 1562, causing the arginine (R) at amino acid position 521 to be replaced by a glutamine (Q). 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

0.071

BayesDel_addAF

Benign

-0.59

BayesDel_noAF

Benign

-0.75

CADD

Benign

3.5

DANN

Benign

0.90

DEOGEN2

Benign

0.0049

.;T

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0073

LIST_S2

Benign

0.53

T;T

M_CAP

Benign

0.0084

MetaRNN

Benign

0.0091

T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.39

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.010

Sift

Benign

0.45

T;T

Sift4G

Benign

0.61

T;T

Polyphen

0.0080

.;B

Vest4

0.033

MutPred

0.20

.;Loss of MoRF binding (P = 0.0323);

MVP

0.092

ClinPred

0.011

GERP RS

-7.3

Varity_R

0.028

gMVP

0.093

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