NM_001372044.2:c.2022G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001372044.2(SHANK3):c.1983G>A(p.Thr661Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000672 in 1,607,000 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000050 ( 1 hom. )

Consequence

SHANK3
NM_001372044.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.744

Publications

0 publications found

Variant links:

Genes affected

SHANK3 (HGNC:14294): (SH3 and multiple ankyrin repeat domains 3) This gene is a member of the Shank gene family. Shank proteins are multidomain scaffold proteins of the postsynaptic density that connect neurotransmitter receptors, ion channels, and other membrane proteins to the actin cytoskeleton and G-protein-coupled signaling pathways. Shank proteins also play a role in synapse formation and dendritic spine maturation. Mutations in this gene are a cause of autism spectrum disorder (ASD), which is characterized by impairments in social interaction and communication, and restricted behavioral patterns and interests. Mutations in this gene also cause schizophrenia type 15, and are a major causative factor in the neurological symptoms of 22q13.3 deletion syndrome, which is also known as Phelan-McDermid syndrome. Additional isoforms have been described for this gene but they have not yet been experimentally verified. [provided by RefSeq, Mar 2012]

SHANK3 Gene-Disease associations (from GenCC):

Phelan-McDermid syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, Laboratory for Molecular Medicine
schizophrenia 15
Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

SHANK3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.35).

BP6

Variant 22-50704763-G-A is Benign according to our data. Variant chr22-50704763-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 1343064.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.744 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00023 (35/152294) while in subpopulation AFR AF = 0.000842 (35/41570). AF 95% confidence interval is 0.000621. There are 0 homozygotes in GnomAd4. There are 16 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 35 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001372044.2. 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
	SHANK3	NM_001372044.2	MANE Select	c.1983G>A	p.Thr661Thr	synonymous	Exon 18 of 25	NP_001358973.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SHANK3	ENST00000692848.2		c.1980G>A	p.Thr660Thr	synonymous	Exon 16 of 23	ENSP00000510794.2	A0A8I5KZC4
SHANK3	ENST00000262795.8	TSL:5	c.1398G>A	p.Thr466Thr	synonymous	Exon 14 of 21	ENSP00000489147.3	A0A0U1RQS4
SHANK3	ENST00000414786.8	TSL:5	n.1982G>A		non_coding_transcript_exon	Exon 15 of 22

Frequencies

GnomAD3 genomes

AF:

0.000230

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000844

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

GnomAD2 exomes

AF:

0.0000683

AC:

AN:

234146

AF XY:

0.0000626

show subpopulations

Gnomad AFR exome

AF:

0.000794

Gnomad AMR exome

AF:

0.0000301

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000102

Gnomad NFE exome

AF:

0.0000189

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000502

AC:

AN:

1454706

Hom.:

Cov.:

AF XY:

0.0000456

AC XY:

AN XY:

723134

show subpopulations

African (AFR)

AF:

0.00114

AC:

AN:

33340

American (AMR)

AF:

0.0000686

AC:

AN:

43752

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25912

East Asian (EAS)

AF:

0.0000254

AC:

AN:

39406

South Asian (SAS)

AF:

0.0000353

AC:

AN:

85034

European-Finnish (FIN)

AF:

0.0000379

AC:

AN:

52826

Middle Eastern (MID)

AF:

0.000382

AC:

AN:

5232

European-Non Finnish (NFE)

AF:

0.0000171

AC:

AN:

1109140

Other (OTH)

AF:

0.0000832

AC:

AN:

60064

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.000230

AC:

AN:

152294

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74472

show subpopulations

African (AFR)

AF:

0.000842

AC:

AN:

41570

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

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:

0.000334

Hom.:

Bravo

AF:

0.000242

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.35

CADD

Benign

5.7

(source)

DANN

Benign

0.83

PhyloP100

-0.74

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over