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chr13-25469044-A-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_016529.6(ATP8A2):ā€‹c.144A>Cā€‹(p.Gly48=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.212 in 1,613,836 control chromosomes in the GnomAD database, including 37,564 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.23 ( 4203 hom., cov: 33)
Exomes š‘“: 0.21 ( 33361 hom. )

Consequence

ATP8A2
NM_016529.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.18
Variant links:
Genes affected
ATP8A2 (HGNC:13533): (ATPase phospholipid transporting 8A2) The protein encoded by this gene is a member of the P4 ATPase family of proteins, which are thought to be involved in a process called lipid flipping, whereby phospholipids are translocated inwards from the exoplasmic leaflet to the cytosolic leaflet of the cell membrane, which aids in generating and maintaining asymmetry in membrane lipids. This protein is predicted to contain an E1 E2 ATPase, a haloacid dehalogenase-like hydrolase (HAD) domain, and multiple transmembrane domains. Associations between this protein and cell cycle control protein 50A are important for translocation of phosphatidylserine across membranes. Mutations in this gene have been associated with a syndrome (CAMRQ4) characterized by cerebellar ataxia and cognitive disabilities. In addition, a translocation breakpoint within this gene was observed in an individual with neurological dysfunction. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant 13-25469044-A-C is Benign according to our data. Variant chr13-25469044-A-C is described in ClinVar as [Benign]. Clinvar id is 128488.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.18 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.305 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ATP8A2NM_016529.6 linkuse as main transcriptc.144A>C p.Gly48= synonymous_variant 2/37 ENST00000381655.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ATP8A2ENST00000381655.7 linkuse as main transcriptc.144A>C p.Gly48= synonymous_variant 2/371 NM_016529.6 Q9NTI2-4

Frequencies

GnomAD3 genomes
AF:
0.226
AC:
34414
AN:
152058
Hom.:
4188
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.309
Gnomad AMI
AF:
0.153
Gnomad AMR
AF:
0.144
Gnomad ASJ
AF:
0.159
Gnomad EAS
AF:
0.108
Gnomad SAS
AF:
0.138
Gnomad FIN
AF:
0.193
Gnomad MID
AF:
0.171
Gnomad NFE
AF:
0.221
Gnomad OTH
AF:
0.187
GnomAD3 exomes
AF:
0.186
AC:
46331
AN:
249296
Hom.:
4749
AF XY:
0.185
AC XY:
25075
AN XY:
135330
show subpopulations
Gnomad AFR exome
AF:
0.318
Gnomad AMR exome
AF:
0.122
Gnomad ASJ exome
AF:
0.156
Gnomad EAS exome
AF:
0.0907
Gnomad SAS exome
AF:
0.146
Gnomad FIN exome
AF:
0.199
Gnomad NFE exome
AF:
0.214
Gnomad OTH exome
AF:
0.167
GnomAD4 exome
AF:
0.210
AC:
307205
AN:
1461662
Hom.:
33361
Cov.:
34
AF XY:
0.208
AC XY:
151457
AN XY:
727140
show subpopulations
Gnomad4 AFR exome
AF:
0.311
Gnomad4 AMR exome
AF:
0.126
Gnomad4 ASJ exome
AF:
0.156
Gnomad4 EAS exome
AF:
0.124
Gnomad4 SAS exome
AF:
0.146
Gnomad4 FIN exome
AF:
0.198
Gnomad4 NFE exome
AF:
0.221
Gnomad4 OTH exome
AF:
0.199
GnomAD4 genome
AF:
0.227
AC:
34473
AN:
152174
Hom.:
4203
Cov.:
33
AF XY:
0.221
AC XY:
16463
AN XY:
74394
show subpopulations
Gnomad4 AFR
AF:
0.310
Gnomad4 AMR
AF:
0.143
Gnomad4 ASJ
AF:
0.159
Gnomad4 EAS
AF:
0.109
Gnomad4 SAS
AF:
0.140
Gnomad4 FIN
AF:
0.193
Gnomad4 NFE
AF:
0.221
Gnomad4 OTH
AF:
0.188
Alfa
AF:
0.214
Hom.:
5679
Bravo
AF:
0.224
Asia WGS
AF:
0.151
AC:
524
AN:
3478
EpiCase
AF:
0.205
EpiControl
AF:
0.211

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxApr 07, 2020- -
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -
not specified Benign:1
Likely benign, no assertion criteria providedclinical testingGenetic Services Laboratory, University of Chicago-Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
12
DANN
Benign
0.78

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: rs7317185; hg19: chr13-26043182; COSMIC: COSV54943308; API