rs2071538

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_000593.6(TAP1):​c.1050+43C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.209 in 1,556,828 control chromosomes in the GnomAD database, including 37,059 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.17 ( 2960 hom., cov: 31)
Exomes 𝑓: 0.21 ( 34099 hom. )

Consequence

TAP1
NM_000593.6 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0940
Variant links:
Genes affected
TAP1 (HGNC:43): (transporter 1, ATP binding cassette subfamily B member) The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance. The protein encoded by this gene is involved in the pumping of degraded cytosolic peptides across the endoplasmic reticulum into the membrane-bound compartment where class I molecules assemble. Mutations in this gene may be associated with ankylosing spondylitis, insulin-dependent diabetes mellitus, and celiac disease. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2014]
PSMB9 (HGNC:9546): (proteasome 20S subunit beta 9) The proteasome is a multicatalytic proteinase complex with a highly ordered ring-shaped 20S core structure. The core structure is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes a member of the proteasome B-type family, also known as the T1B family, that is a 20S core beta subunit. This gene is located in the class II region of the MHC (major histocompatibility complex). Expression of this gene is induced by gamma interferon and this gene product replaces catalytic subunit 1 (proteasome beta 6 subunit) in the immunoproteasome. Proteolytic processing is required to generate a mature subunit. [provided by RefSeq, Mar 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.233 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TAP1NM_000593.6 linkuse as main transcriptc.1050+43C>T intron_variant ENST00000354258.5
TAP1NM_001292022.2 linkuse as main transcriptc.447+43C>T intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TAP1ENST00000354258.5 linkuse as main transcriptc.1050+43C>T intron_variant 1 NM_000593.6 P1Q03518-1

Frequencies

GnomAD3 genomes
AF:
0.171
AC:
25907
AN:
151946
Hom.:
2960
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0387
Gnomad AMI
AF:
0.217
Gnomad AMR
AF:
0.179
Gnomad ASJ
AF:
0.209
Gnomad EAS
AF:
0.0540
Gnomad SAS
AF:
0.129
Gnomad FIN
AF:
0.319
Gnomad MID
AF:
0.162
Gnomad NFE
AF:
0.236
Gnomad OTH
AF:
0.141
GnomAD3 exomes
AF:
0.184
AC:
44993
AN:
244944
Hom.:
5023
AF XY:
0.187
AC XY:
24982
AN XY:
133638
show subpopulations
Gnomad AFR exome
AF:
0.0336
Gnomad AMR exome
AF:
0.139
Gnomad ASJ exome
AF:
0.206
Gnomad EAS exome
AF:
0.0286
Gnomad SAS exome
AF:
0.138
Gnomad FIN exome
AF:
0.315
Gnomad NFE exome
AF:
0.229
Gnomad OTH exome
AF:
0.184
GnomAD4 exome
AF:
0.214
AC:
300195
AN:
1404764
Hom.:
34099
Cov.:
26
AF XY:
0.213
AC XY:
149471
AN XY:
702106
show subpopulations
Gnomad4 AFR exome
AF:
0.0327
Gnomad4 AMR exome
AF:
0.143
Gnomad4 ASJ exome
AF:
0.207
Gnomad4 EAS exome
AF:
0.105
Gnomad4 SAS exome
AF:
0.141
Gnomad4 FIN exome
AF:
0.311
Gnomad4 NFE exome
AF:
0.229
Gnomad4 OTH exome
AF:
0.189
GnomAD4 genome
AF:
0.170
AC:
25911
AN:
152064
Hom.:
2960
Cov.:
31
AF XY:
0.175
AC XY:
13007
AN XY:
74324
show subpopulations
Gnomad4 AFR
AF:
0.0386
Gnomad4 AMR
AF:
0.179
Gnomad4 ASJ
AF:
0.209
Gnomad4 EAS
AF:
0.0539
Gnomad4 SAS
AF:
0.130
Gnomad4 FIN
AF:
0.319
Gnomad4 NFE
AF:
0.236
Gnomad4 OTH
AF:
0.139
Alfa
AF:
0.215
Hom.:
7243
Bravo
AF:
0.151
Asia WGS
AF:
0.0830
AC:
293
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
5.6
DANN
Benign
0.74

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: rs2071538; hg19: chr6-32818678; COSMIC: COSV62754545; COSMIC: COSV62754545; API