6-33303981-G-A
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7
The NM_003190.5(TAPBP):c.1309C>T(p.Leu437=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,878 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).
Frequency
Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
TAPBP
NM_003190.5 synonymous
NM_003190.5 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: 0.149
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]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -5 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
?
Variant 6-33303981-G-A is Benign according to our data. Variant chr6-33303981-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1607876.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
?
Synonymous conserved (PhyloP=0.149 with no splicing effect.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TAPBP | NM_003190.5 | c.1309C>T | p.Leu437= | synonymous_variant | 7/8 | ENST00000434618.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TAPBP | ENST00000434618.7 | c.1309C>T | p.Leu437= | synonymous_variant | 7/8 | 1 | NM_003190.5 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 31
GnomAD3 genomes
?
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31
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251478Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135912
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GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461878Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727244
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GnomAD4 genome ? Cov.: 31
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31
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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 submitter | clinical testing | Invitae | Feb 10, 2022 | - - |
Computational scores
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Name
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BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at