11-984724-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_012305.4(AP2A2):ā€‹c.785T>Gā€‹(p.Leu262Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

AP2A2
NM_012305.4 missense

Scores

13
5
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.87
Variant links:
Genes affected
AP2A2 (HGNC:562): (adaptor related protein complex 2 subunit alpha 2) The protein encoded by this gene is a subunit of the AP-2 adaptor protein complex, which is involved in linking lipid and protein membrane components with the clathrin lattice. This interaction supports the formation of clathrin-coated vesicles, and the encoded subunit aids in the process by binding polyphosphoinositide-containing lipids in the cell membrane. [provided by RefSeq, Nov 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.956

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AP2A2NM_012305.4 linkc.785T>G p.Leu262Arg missense_variant Exon 7 of 22 ENST00000448903.7 NP_036437.1 O94973-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AP2A2ENST00000448903.7 linkc.785T>G p.Leu262Arg missense_variant Exon 7 of 22 1 NM_012305.4 ENSP00000413234.3 O94973-1
AP2A2ENST00000332231.9 linkc.785T>G p.Leu262Arg missense_variant Exon 7 of 22 1 ENSP00000327694.5 O94973-2
AP2A2ENST00000528815.5 linkn.785T>G non_coding_transcript_exon_variant Exon 7 of 21 2 ENSP00000431630.1 O94973-3
AP2A2ENST00000687792.1 linkn.785T>G non_coding_transcript_exon_variant Exon 7 of 21 ENSP00000508951.1 A0A8I5KPP9
AP2A2ENST00000687890.1 linkn.785T>G non_coding_transcript_exon_variant Exon 7 of 21 ENSP00000510756.1 A0A8I5KPP9
AP2A2ENST00000693238.1 linkn.785T>G non_coding_transcript_exon_variant Exon 7 of 20 ENSP00000510648.1 A0A8I5KPP9

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460676
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726676
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Nov 23, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.785T>G (p.L262R) alteration is located in exon 7 (coding exon 7) of the AP2A2 gene. This alteration results from a T to G substitution at nucleotide position 785, causing the leucine (L) at amino acid position 262 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.21
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.46
.;.;T;D
Eigen
Pathogenic
0.77
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;.;D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.96
D;D;D;D
MetaSVM
Uncertain
-0.22
T
MutationAssessor
Pathogenic
3.4
M;.;.;M
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-5.1
D;D;D;D
REVEL
Pathogenic
0.69
Sift
Pathogenic
0.0
D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D
Polyphen
1.0
D;.;.;D
Vest4
0.96
MutPred
0.88
Loss of ubiquitination at K260 (P = 0.0595);.;Loss of ubiquitination at K260 (P = 0.0595);Loss of ubiquitination at K260 (P = 0.0595);
MVP
0.83
MPC
2.2
ClinPred
1.0
D
GERP RS
3.8
Varity_R
0.92
gMVP
0.92

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-984724; API