rs975392090

Variant summary

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

The NM_001372044.2(SHANK3):​c.2929C>G​(p.Pro977Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000366 in 1,093,628 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SHANK3
NM_001372044.2 missense

Scores

2
6
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54

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: Laboratory for Molecular Medicine, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), ClinGen
  • schizophrenia 15
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

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=0.2702283).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SHANK3NM_001372044.2 linkc.2929C>G p.Pro977Ala missense_variant Exon 24 of 25 ENST00000710353.1 NP_001358973.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SHANK3ENST00000692848.2 linkc.2926C>G p.Pro976Ala missense_variant Exon 22 of 23 ENSP00000510794.2

Frequencies

GnomAD3 genomes
AF:
0.0000137
AC:
2
AN:
146400
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000490
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:
0.00000211
AC:
2
AN:
947228
Hom.:
0
Cov.:
33
AF XY:
0.00000443
AC XY:
2
AN XY:
451422
show subpopulations
African (AFR)
AF:
0.000117
AC:
2
AN:
17064
American (AMR)
AF:
0.00
AC:
0
AN:
3546
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
8398
East Asian (EAS)
AF:
0.00
AC:
0
AN:
9536
South Asian (SAS)
AF:
0.00
AC:
0
AN:
31636
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
13518
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2126
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
828682
Other (OTH)
AF:
0.00
AC:
0
AN:
32722
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000137
AC:
2
AN:
146400
Hom.:
0
Cov.:
33
AF XY:
0.0000140
AC XY:
1
AN XY:
71198
show subpopulations
African (AFR)
AF:
0.0000490
AC:
2
AN:
40850
American (AMR)
AF:
0.00
AC:
0
AN:
14750
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3392
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5098
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
8378
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
65864
Other (OTH)
AF:
0.00
AC:
0
AN:
2020
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
May 26, 2016
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Lines of evidence used in support of classification: UNCERTAIN: Alteration(s) of Uncertain Clinical Significance Detected -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.052
BayesDel_noAF
Benign
-0.41
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.063
.;T
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.045
D
MetaRNN
Benign
0.27
T;T
MetaSVM
Uncertain
0.021
D
PhyloP100
3.5
PrimateAI
Pathogenic
0.92
D
REVEL
Benign
0.21
Sift4G
Uncertain
0.037
D;D
Vest4
0.34
GERP RS
4.4
gMVP
0.14
Mutation Taster
=72/28
polymorphism

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

Other links and lift over

dbSNP: rs975392090; hg19: chr22-51159004; API