chr11-70468492-T-A

Position:

• chr11-70468492-T-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_012309.5(SHANK2):​c.*4377A>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.97 in 152,328 control chromosomes in the GnomAD database, including 71,810 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency:
  • Genomes: 𝑓 0.97 (71809 hom., cov: 34)
  • Exomes 𝑓: 1.0 (1 hom.)
• Consequence: SHANK2 NM_012309.5 3_prime_UTR
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.0230

Genes affected

SHANK2 (HGNC:14295): (SH3 and multiple ankyrin repeat domains 2) This gene encodes a protein that is a member of the Shank family of synaptic proteins that may function as molecular scaffolds in the postsynaptic density of excitatory synapses. Shank proteins contain multiple domains for protein-protein interaction, including ankyrin repeats, and an SH3 domain. This particular family member contains a PDZ domain, a consensus sequence for cortactin SH3 domain-binding peptides and a sterile alpha motif. The alternative splicing demonstrated in Shank genes has been suggested as a mechanism for regulating the molecular structure of Shank and the spectrum of Shank-interacting proteins in the postsynaptic densities of the adult and developing brain. Alterations in the encoded protein may be associated with susceptibility to autism spectrum disorder. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2014]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BP6: Variant 11-70468492-T-A is Benign according to our data. Variant chr11-70468492-T-A is described in ClinVar as [Likely_benign]. Clinvar id is 305881.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.993 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SHANK2	NM_012309.5	c.*4377A>T		3_prime_UTR_variant	26/26	ENST00000601538.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SHANK2	ENST00000601538.6	c.*4377A>T		3_prime_UTR_variant	26/26	5	NM_012309.5	P1
SHANK2	ENST00000409161.5	c.*4377A>T		3_prime_UTR_variant	10/10	1

Frequencies

GnomAD3 genomes AF: 0.970 AC: 147610 AN: 152208 Hom.: 71757 Cov.: 34

Gnomad AFR AF: 0.897

Gnomad AMI AF: 1.00

Gnomad AMR AF: 0.988

Gnomad ASJ AF: 1.00

Gnomad EAS AF: 1.00

Gnomad SAS AF: 1.00

Gnomad FIN AF: 1.00

Gnomad MID AF: 0.978

Gnomad NFE AF: 0.999

Gnomad OTH AF: 0.972

GnomAD4 exome AF: 1.00 AC: 2 AN: 2 Hom.: 1 Cov.: 0 AC XY: 0 AN XY: 0

Gnomad4 FIN exome AF: 1.00

GnomAD4 genome AF: 0.970 AC: 147722 AN: 152326 Hom.: 71809 Cov.: 34 AF XY: 0.971 AC XY: 72330 AN XY: 74480

Gnomad4 AFR AF: 0.897

Gnomad4 AMR AF: 0.988

Gnomad4 ASJ AF: 1.00

Gnomad4 EAS AF: 1.00

Gnomad4 SAS AF: 1.00

Gnomad4 FIN AF: 1.00

Gnomad4 NFE AF: 0.999

Gnomad4 OTH AF: 0.973

Alfa AF: 0.983 Hom.: 8585

Bravo AF: 0.966

Asia WGS AF: 0.992 AC: 3451 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:1

Likely benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

-

- -

Autism spectrum disorder Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.41
DANN	Benign	0.72

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs513996; hg19: chr11-70314597;