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GeneBe

chr19-46838512-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 5P and 4B. PM1PP2PP3_ModerateBS2

The NM_004069.6(AP2S1):​c.364G>A​(p.Glu122Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,696 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

AP2S1
NM_004069.6 missense

Scores

6
7
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.33
Variant links:
Genes affected
AP2S1 (HGNC:565): (adaptor related protein complex 2 subunit sigma 1) One of two major clathrin-associated adaptor complexes, AP-2, is a heterotetramer which is associated with the plasma membrane. This complex is composed of two large chains, a medium chain, and a small chain. This gene encodes the small chain of this complex. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM1
In a chain AP-2 complex subunit sigma (size 141) in uniprot entity AP2S1_HUMAN there are 6 pathogenic changes around while only 0 benign (100%) in NM_004069.6
PP2
Missense variant where missense usually causes diseases, AP2S1
PP3
MetaRNN computational evidence supports a deleterious effect, 0.869
BS2
High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AP2S1NM_004069.6 linkuse as main transcriptc.364G>A p.Glu122Lys missense_variant 5/5 ENST00000263270.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AP2S1ENST00000263270.11 linkuse as main transcriptc.364G>A p.Glu122Lys missense_variant 5/51 NM_004069.6 P4P53680-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251170
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135854
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461696
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
727116
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeMay 25, 2022In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with AP2S1-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.002%). This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 122 of the AP2S1 protein (p.Glu122Lys). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.89
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.42
CADD
Benign
23
DANN
Uncertain
1.0
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.96
D;D;D;D;D;D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.87
D;D;D;D;D;D;D
MetaSVM
Uncertain
0.082
D
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.87
D
REVEL
Pathogenic
0.66
Sift4G
Benign
0.062
T;T;T;T;T;T;T
Polyphen
0.87, 0.94
.;.;.;.;P;.;P
Vest4
0.73
MutPred
0.56
.;.;.;.;Gain of methylation at E122 (P = 0.023);.;.;
MVP
0.72
MPC
2.2
ClinPred
0.96
D
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.84
gMVP
0.99

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: rs1266748065; hg19: chr19-47341769; API