Genetic Variant NM_018009.5:c.557G>A (chr12-6453708-G-A) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_018009.5(TAPBPL):c.557G>A(p.Arg186Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000464 in 1,594,158 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000044 ( 1 hom. )

Consequence

TAPBPL
NM_018009.5 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.19

Publications

4 publications found

Variant links:

Genes affected

TAPBPL (HGNC:30683): (TAP binding protein like) Tapasin, or TAPBP (MIM 601962), is a member of the variable-constant Ig superfamily that links major histocompatibility complex (MHC) class I molecules to the transporter associated with antigen processing (TAP; see MIM 170260) in the endoplasmic reticulum (ER). The TAPBP gene is located near the MHC complex on chromosome 6p21.3. TAPBPL is a member of the Ig superfamily that is localized on chromosome 12p13.3, a region somewhat paralogous to the MHC.[supplied by OMIM, Mar 2008]

TAPBPL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.030219495).

BP6

Variant 12-6453708-G-A is Benign according to our data. Variant chr12-6453708-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3173821.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TAPBPL	NM_018009.5 link	c.557G>A	p.Arg186Gln	missense_variant	Exon 3 of 7	ENST00000266556.8	NP_060479.3	Q9BX59-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TAPBPL	ENST00000266556.8 link	c.557G>A	p.Arg186Gln	missense_variant	Exon 3 of 7	1	NM_018009.5	ENSP00000266556.7		Q9BX59-1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152134

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000336

AC:

AN:

237946

AF XY:

0.0000232

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000310

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000555

Gnomad OTH exome

AF:

0.000174

GnomAD4 exome

AF:

0.0000437

AC:

AN:

1442024

Hom.:

Cov.:

AF XY:

0.0000433

AC XY:

AN XY:

715354

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32710

American (AMR)

AF:

0.0000713

AC:

AN:

42100

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25130

East Asian (EAS)

AF:

0.0000507

AC:

AN:

39420

South Asian (SAS)

AF:

0.0000118

AC:

AN:

84790

European-Finnish (FIN)

AF:

0.0000572

AC:

AN:

52402

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4644

European-Non Finnish (NFE)

AF:

0.0000463

AC:

AN:

1101474

Other (OTH)

AF:

0.0000505

AC:

AN:

59354

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74332

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41420

American (AMR)

AF:

0.000327

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.516

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000108

Hom.:

Bravo

AF:

0.000117

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Dec 16, 2023

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.065

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.78

CADD

Benign

0.047

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.0046

T;T

Eigen

Benign

-1.8

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.030

LIST_S2

Benign

0.73

T;T

M_CAP

Benign

0.0039

MetaRNN

Benign

0.030

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

.;N

PhyloP100

-1.2

PrimateAI

Benign

0.17

PROVEAN

Benign

-0.96

N;N

REVEL

Benign

0.016

Sift

Benign

0.35

T;T

Sift4G

Benign

0.42

T;T

Polyphen

0.0060

.;B

Vest4

0.021

MutPred

0.46

.;Gain of catalytic residue at F191 (P = 0.0071);

MVP

0.21

MPC

0.21

ClinPred

0.027

GERP RS

-9.1

Varity_R

0.099

gMVP

0.21

Mutation Taster

=89/11

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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NM_018009.5:c.557G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over