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GeneBe

12-6458936-T-C

Variant summary

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

The NM_018009.5(TAPBPL):c.1196T>C(p.Val399Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000616 in 1,461,414 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

TAPBPL
NM_018009.5 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.01
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]

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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=0.09649858).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TAPBPLNM_018009.5 linkuse as main transcriptc.1196T>C p.Val399Ala missense_variant 5/7 ENST00000266556.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TAPBPLENST00000266556.8 linkuse as main transcriptc.1196T>C p.Val399Ala missense_variant 5/71 NM_018009.5 P1Q9BX59-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250872
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135582
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:
0.00000882
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461414
Hom.:
0
Cov.:
33
AF XY:
0.00000825
AC XY:
6
AN XY:
726928
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000313
Hom.:
0
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 submitterclinical testingAmbry GeneticsDec 16, 2021The c.1196T>C (p.V399A) alteration is located in exon 5 (coding exon 5) of the TAPBPL gene. This alteration results from a T to C substitution at nucleotide position 1196, causing the valine (V) at amino acid position 399 to be replaced by an alanine (A). 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
0.22
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
Cadd
Benign
19
Dann
Uncertain
0.99
DEOGEN2
Benign
0.032
T
Eigen
Benign
-0.53
Eigen_PC
Benign
-0.51
FATHMM_MKL
Benign
0.19
N
LIST_S2
Benign
0.47
T
M_CAP
Benign
0.0075
T
MetaRNN
Benign
0.096
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.5
L
MutationTaster
Benign
0.97
D
PrimateAI
Benign
0.31
T
PROVEAN
Uncertain
-2.7
D
REVEL
Benign
0.069
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0070
D
Polyphen
0.061
B
Vest4
0.10
MutPred
0.37
Gain of catalytic residue at P401 (P = 0.0016);
MVP
0.15
MPC
0.23
ClinPred
0.54
D
GERP RS
4.0
Varity_R
0.34
gMVP
0.49

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.

Other links and lift over

dbSNP: rs775466902; hg19: chr12-6568102; API