chr6-33304200-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_003190.5(TAPBP):​c.1228C>T​(p.Leu410Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000153 in 1,613,758 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

TAPBP
NM_003190.5 missense

Scores

4
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0930
Variant links:
Genes affected
TAPBP (HGNC:11566): (TAP binding protein) This gene encodes a transmembrane glycoprotein which mediates interaction between newly assembled major histocompatibility complex (MHC) class I molecules and the transporter associated with antigen processing (TAP), which is required for the transport of antigenic peptides across the endoplasmic reticulum membrane. This interaction is essential for optimal peptide loading on the MHC class I molecule. Up to four complexes of MHC class I and this protein may be bound to a single TAP molecule. This protein contains a C-terminal double-lysine motif (KKKAE) known to maintain membrane proteins in the endoplasmic reticulum. This gene lies within the major histocompatibility complex on chromosome 6. Alternative splicing results in three transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.012649596).
BP6
Variant 6-33304200-G-A is Benign according to our data. Variant chr6-33304200-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 763120.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TAPBPNM_003190.5 linkuse as main transcriptc.1228C>T p.Leu410Phe missense_variant 6/8 ENST00000434618.7 NP_003181.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TAPBPENST00000434618.7 linkuse as main transcriptc.1228C>T p.Leu410Phe missense_variant 6/81 NM_003190.5 ENSP00000395701 P2O15533-1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
151942
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00403
Gnomad EAS
AF:
0.000194
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000255
AC:
64
AN:
250902
Hom.:
1
AF XY:
0.000251
AC XY:
34
AN XY:
135606
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00538
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000529
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.000158
AC:
231
AN:
1461698
Hom.:
1
Cov.:
32
AF XY:
0.000162
AC XY:
118
AN XY:
727164
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00624
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.0000324
Gnomad4 OTH exome
AF:
0.000447
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152060
Hom.:
0
Cov.:
31
AF XY:
0.0000942
AC XY:
7
AN XY:
74326
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00403
Gnomad4 EAS
AF:
0.000194
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000543
Hom.:
0
Bravo
AF:
0.000166
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000214
AC:
26
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

MHC class I deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 12, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Benign
0.083
.;T;.;T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.45
FATHMM_MKL
Benign
0.13
N
LIST_S2
Uncertain
0.89
D;D;D;D
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.013
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
0.75
D;N;N;N;N
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.93
N;N;N;N
REVEL
Benign
0.090
Sift
Uncertain
0.0090
D;D;T;D
Sift4G
Uncertain
0.018
D;D;D;D
Polyphen
0.96
.;D;.;.
Vest4
0.38
MVP
0.51
MPC
1.1
ClinPred
0.11
T
GERP RS
0.43
gMVP
0.28

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs200685500; hg19: chr6-33271977; API