Genetic Variant SYNGR3:p.Asp218Asn (chr16-1993034-G-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004209.6(SYNGR3):c.652G>A(p.Asp218Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,611,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D218H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

SYNGR3
NM_004209.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.08

Publications

0 publications found

Variant links:

Genes affected

SYNGR3 (HGNC:11501): (synaptogyrin 3) This gene encodes an integral membrane protein. The exact function of this protein is unclear, but studies of a similar murine protein suggest that it is a synaptic vesicle protein that also interacts with the dopamine transporter. The gene product belongs to the synaptogyrin gene family. [provided by RefSeq, Dec 2010]

SYNGR3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2917301).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004209.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SYNGR3	NM_004209.6	MANE Select	c.652G>A	p.Asp218Asn	missense	Exon 4 of 4	NP_004200.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SYNGR3	ENST00000248121.7	TSL:1 MANE Select	c.652G>A	p.Asp218Asn	missense	Exon 4 of 4	ENSP00000248121.2	O43761
SYNGR3	ENST00000563869.1	TSL:2	c.584G>A	p.Gly195Glu	missense	Exon 4 of 4	ENSP00000455344.1	H3BPJ5
SYNGR3	ENST00000873156.1		c.580G>A	p.Asp194Asn	missense	Exon 4 of 4	ENSP00000543215.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152074

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

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:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459728

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726128

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33464

American (AMR)

AF:

0.00

AC:

AN:

44682

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26096

East Asian (EAS)

AF:

0.00

AC:

AN:

39674

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86162

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51866

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111692

Other (OTH)

AF:

0.00

AC:

AN:

60326

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152074

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74280

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41398

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.66

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.028

Eigen

Uncertain

0.52

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.84

M_CAP

Benign

0.016

MetaRNN

Benign

0.29

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

PhyloP100

6.1

PrimateAI

Uncertain

0.65

PROVEAN

Benign

-1.9

REVEL

Benign

0.13

Sift

Benign

0.075

Sift4G

Benign

0.18

Polyphen

1.0

Vest4

0.24

MutPred

0.19

Loss of phosphorylation at T216 (P = 0.0974)

MVP

0.24

MPC

1.5

ClinPred

0.91

GERP RS

3.5

Varity_R

0.15

gMVP

0.68

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over