4-99835723-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_014395.3(DAPP1):​c.202G>A​(p.Gly68Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000198 in 1,613,668 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

DAPP1
NM_014395.3 missense

Scores

2
8
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.34
Variant links:
Genes affected
DAPP1 (HGNC:16500): (dual adaptor of phosphotyrosine and 3-phosphoinositides 1) Enables phosphatidylinositol-3,4,5-trisphosphate binding activity and phosphatidylinositol-3,4-bisphosphate binding activity. Predicted to be involved in signal transduction. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DAPP1NM_014395.3 linkuse as main transcriptc.202G>A p.Gly68Arg missense_variant 2/9 ENST00000512369.2 NP_055210.2 Q9UN19-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DAPP1ENST00000512369.2 linkuse as main transcriptc.202G>A p.Gly68Arg missense_variant 2/91 NM_014395.3 ENSP00000423602.1 Q9UN19-1
DAPP1ENST00000296414.11 linkuse as main transcriptc.202G>A p.Gly68Arg missense_variant 2/101 ENSP00000296414.7 J3KNB3
DAPP1ENST00000507994.1 linkuse as main transcriptn.266G>A non_coding_transcript_exon_variant 2/62

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152098
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000321
AC:
8
AN:
249148
Hom.:
0
AF XY:
0.0000222
AC XY:
3
AN XY:
135162
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000556
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000266
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000205
AC:
30
AN:
1461570
Hom.:
0
Cov.:
30
AF XY:
0.0000206
AC XY:
15
AN XY:
727068
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000189
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152098
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000966
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.00000827
AC:
1
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 28, 2022The c.202G>A (p.G68R) alteration is located in exon 2 (coding exon 2) of the DAPP1 gene. This alteration results from a G to A substitution at nucleotide position 202, causing the glycine (G) at amino acid position 68 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
Benign
0.18
BayesDel_addAF
Benign
-0.051
T
BayesDel_noAF
Benign
-0.13
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.88
.;D
Eigen
Benign
0.017
Eigen_PC
Benign
-0.10
FATHMM_MKL
Benign
0.24
N
LIST_S2
Benign
0.72
T;T
M_CAP
Uncertain
0.16
D
MetaRNN
Uncertain
0.56
D;D
MetaSVM
Uncertain
0.49
D
MutationAssessor
Uncertain
2.9
.;M
PrimateAI
Benign
0.42
T
PROVEAN
Pathogenic
-4.7
D;D
REVEL
Uncertain
0.38
Sift
Uncertain
0.0090
D;D
Sift4G
Uncertain
0.0070
D;D
Polyphen
0.99
.;D
Vest4
0.40
MutPred
0.89
Gain of glycosylation at S63 (P = 0.03);Gain of glycosylation at S63 (P = 0.03);
MVP
0.94
MPC
1.6
ClinPred
0.77
D
GERP RS
5.1
Varity_R
0.21
gMVP
0.64

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: rs754986506; hg19: chr4-100756880; API