NM_001278512.2:c.3293C>A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_001278512.2(AP3B2):c.3293C>A(p.Ala1098Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000527 in 1,613,908 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

AP3B2
NM_001278512.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.94

Publications

1 publications found

Variant links:

Genes affected

AP3B2 (HGNC:567): (adaptor related protein complex 3 subunit beta 2) Adaptor protein complex 3 (AP-3 complex) is a heterotrimeric protein complex involved in the formation of clathrin-coated synaptic vesicles. The protein encoded by this gene represents the beta subunit of the neuron-specific AP-3 complex and was first identified as the target antigen in human paraneoplastic neurologic disorders. The encoded subunit binds clathrin and is phosphorylated by a casein kinase-like protein, which mediates synaptic vesicle coat assembly. Defects in this gene are a cause of early-onset epileptic encephalopathy. [provided by RefSeq, Feb 2017]

AP3B2 links:

CPEB1-AS1 (HGNC:27523): (CPEB1 antisense RNA 1)

CPEB1-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.040586174).

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.0000985 (15/152298) while in subpopulation AMR AF = 0.000653 (10/15304). AF 95% confidence interval is 0.000354. There are 0 homozygotes in GnomAd4. There are 8 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001278512.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AP3B2	NM_001278512.2	MANE Select	c.3293C>A	p.Ala1098Asp	missense	Exon 27 of 27	NP_001265441.1	Q13367-4
AP3B2	NM_004644.5		c.3236C>A	p.Ala1079Asp	missense	Exon 26 of 26	NP_004635.2
AP3B2	NM_001278511.2		c.3140C>A	p.Ala1047Asp	missense	Exon 25 of 25	NP_001265440.1	Q13367-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
AP3B2	ENST00000535359.6	TSL:1 MANE Select	c.3293C>A	p.Ala1098Asp	missense	Exon 27 of 27	ENSP00000440984.1	Q13367-4
AP3B2	ENST00000261722.8	TSL:1	c.3254C>A	p.Ala1085Asp	missense	Exon 26 of 26	ENSP00000261722.4	A0A5F9UJV3
AP3B2	ENST00000535348.5	TSL:1	c.3140C>A	p.Ala1047Asp	missense	Exon 25 of 25	ENSP00000438721.1	Q13367-3

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000181

AC:

AN:

249166

AF XY:

0.000192

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00113

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000496

GnomAD4 exome

AF:

0.0000479

AC:

AN:

1461610

Hom.:

Cov.:

AF XY:

0.0000550

AC XY:

AN XY:

727098

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00116

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.0000765

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53326

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000630

AC:

AN:

1111856

Other (OTH)

AF:

0.000133

AC:

AN:

60368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152298

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74470

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41566

American (AMR)

AF:

0.000653

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.000473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000888

Hom.:

Bravo

AF:

0.000212

ExAC

AF:

0.000132

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Developmental and epileptic encephalopathy, 48 (1)

Inborn genetic diseases (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.38

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.20

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.60

Eigen

Benign

0.18

Eigen_PC

Benign

0.11

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.85

M_CAP

Uncertain

0.10

MetaRNN

Benign

0.041

MetaSVM

Benign

-0.54

MutationAssessor

Uncertain

2.6

PhyloP100

7.9

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-3.0

REVEL

Benign

0.23

Sift

Uncertain

0.015

Sift4G

Uncertain

0.025

Polyphen

0.72

Vest4

0.57

MVP

0.23

MPC

0.22

ClinPred

0.30

GERP RS

3.0

Varity_R

0.56

gMVP

0.71

Mutation Taster

=74/26

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over