rs568176223

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001128126.3(AP4S1):c.229G>A(p.Glu77Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,612,170 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: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

AP4S1
NM_001128126.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.97

Variant links:

Genes affected

AP4S1 (HGNC:575): (adaptor related protein complex 4 subunit sigma 1) This gene encodes a member of the adaptor complexes small subunit protein family. These proteins are components of the heterotetrameric adaptor protein complexes, which play important roles in the secretory and endocytic pathways by mediating vesicle formation and sorting of integral membrane proteins. The encoded protein is the small subunit of adaptor protein complex-4, which is associated with both clathrin- and nonclathrin-coated vesicles. Mutations in this gene are associated with spastic quadriplegic cerebral palsy-6. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene, and a pseudogene of this gene is located on the long arm of chromosome 6. [provided by RefSeq, Dec 2011]

AP4S1 links:

AP4S1 (HGNC:):

AP4S1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.783

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
AP4S1	NM_001128126.3 linkuse as main transcript	c.229G>A	p.Glu77Lys	missense_variant	4/6	ENST00000542754.7	NP_001121598.1	Q9Y587-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
AP4S1	ENST00000542754.7 linkuse as main transcript	c.229G>A	p.Glu77Lys	missense_variant	4/6	1	NM_001128126.3	ENSP00000438170.2		Q9Y587-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000318

AC:

AN:

251356

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135870

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:

0.000196

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1459972

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

726444

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:

0.000174

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.01e-7

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000622

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 07, 2023

The c.229G>A (p.E77K) alteration is located in exon 4 (coding exon 3) of the AP4S1 gene. This alteration results from a G to A substitution at nucleotide position 229, causing the glutamic acid (E) at amino acid position 77 to be replaced by a lysine (K). 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

0.83

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.43

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.68

.;D;D;.;D;.;.;D;.;D;D

Eigen

Pathogenic

0.94

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;.;.;D;D;D;.;D;D;D;D

M_CAP

Benign

0.031

MetaRNN

Pathogenic

0.78

D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.24

MutationAssessor

Pathogenic

4.1

.;H;H;H;.;H;H;.;H;H;.

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-3.8

D;.;D;D;D;D;D;D;D;.;D

REVEL

Pathogenic

0.70

Sift

Uncertain

0.0040

D;.;D;D;D;D;D;D;D;.;D

Sift4G

Uncertain

0.0050

D;D;D;D;D;D;D;D;D;D;D

Polyphen

1.0, 1.0

.;D;D;.;.;D;.;.;.;D;.

Vest4

0.82, 0.83, 0.86, 0.85, 0.88, 0.86

MutPred

0.73

Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);Gain of catalytic residue at D73 (P = 0.0057);.;

MVP

0.47

MPC

0.58

ClinPred

0.81

GERP RS

5.5

Varity_R

0.92

gMVP

0.74

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over