11-34916137-C-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_015957.4(APIP):​c.57+91G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00169 in 1,510,264 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0014 ( 1 hom., cov: 34)
Exomes 𝑓: 0.0017 ( 4 hom. )

Consequence

APIP
NM_015957.4 intron

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.465
Variant links:
Genes affected
APIP (HGNC:17581): (APAF1 interacting protein) Enables identical protein binding activity; methylthioribulose 1-phosphate dehydratase activity; and zinc ion binding activity. Involved in several processes, including L-methionine salvage from methylthioadenosine; protein homotetramerization; and pyroptosis. Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]
PDHX (HGNC:21350): (pyruvate dehydrogenase complex component X) The pyruvate dehydrogenase (PDH) complex is located in the mitochondrial matrix and catalyzes the conversion of pyruvate to acetyl coenzyme A. The PDH complex thereby links glycolysis to Krebs cycle. The PDH complex contains three catalytic subunits, E1, E2, and E3, two regulatory subunits, E1 kinase and E1 phosphatase, and a non-catalytic subunit, E3 binding protein (E3BP). This gene encodes the E3 binding protein subunit; also known as component X of the pyruvate dehydrogenase complex. This protein tethers E3 dimers to the E2 core of the PDH complex. Defects in this gene are a cause of pyruvate dehydrogenase deficiency which results in neurological dysfunction and lactic acidosis in infancy and early childhood. This protein is also a minor antigen for antimitochondrial antibodies. These autoantibodies are present in nearly 95% of patients with the autoimmune liver disease primary biliary cirrhosis (PBC). In PBC, activated T lymphocytes attack and destroy epithelial cells in the bile duct where this protein is abnormally distributed and overexpressed. PBC eventually leads to cirrhosis and liver failure. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Oct 2009]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BP6
Variant 11-34916137-C-A is Benign according to our data. Variant chr11-34916137-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 880153.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
APIPNM_015957.4 linkuse as main transcriptc.57+91G>T intron_variant ENST00000395787.4 NP_057041.2
APIPXM_011520154.4 linkuse as main transcriptc.13+91G>T intron_variant XP_011518456.1
PDHXXM_011520390.2 linkuse as main transcriptc.-21+199C>A intron_variant XP_011518692.1
APIPXM_017017875.3 linkuse as main transcriptc.-301+91G>T intron_variant XP_016873364.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
APIPENST00000395787.4 linkuse as main transcriptc.57+91G>T intron_variant 1 NM_015957.4 ENSP00000379133 P1Q96GX9-1
PDHXENST00000448838.8 linkuse as main transcriptc.-370C>A 5_prime_UTR_variant 1/115 ENSP00000389404
PDHXENST00000533550.5 linkuse as main transcriptc.-21+199C>A intron_variant 4 ENSP00000431281
APIPENST00000527830.1 linkuse as main transcriptn.124+91G>T intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00137
AC:
209
AN:
152236
Hom.:
1
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00477
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000377
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00175
Gnomad OTH
AF:
0.00143
GnomAD4 exome
AF:
0.00173
AC:
2347
AN:
1357910
Hom.:
4
Cov.:
25
AF XY:
0.00169
AC XY:
1134
AN XY:
670884
show subpopulations
Gnomad4 AFR exome
AF:
0.000168
Gnomad4 AMR exome
AF:
0.00170
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000129
Gnomad4 FIN exome
AF:
0.000484
Gnomad4 NFE exome
AF:
0.00205
Gnomad4 OTH exome
AF:
0.00175
GnomAD4 genome
AF:
0.00137
AC:
209
AN:
152354
Hom.:
1
Cov.:
34
AF XY:
0.00144
AC XY:
107
AN XY:
74504
show subpopulations
Gnomad4 AFR
AF:
0.000240
Gnomad4 AMR
AF:
0.00477
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000377
Gnomad4 NFE
AF:
0.00175
Gnomad4 OTH
AF:
0.00142
Bravo
AF:
0.00128

ClinVar

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

Submissions by phenotype

Pyruvate dehydrogenase E3-binding protein deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
CADD
Benign
2.1
DANN
Benign
0.75
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

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: rs561463212; hg19: chr11-34937684; API