7-69599717-C-T

Variant names:

• chr7-69599717-C-T
• rs1263138285
• NM_015570.4:c.64C>T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4 BS2

The NM_015570.4(AUTS2):​c.64C>T​(p.Arg22Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000111 in 1,173,092 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: not found (cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: AUTS2 NM_015570.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 1.82

Genes affected

AUTS2 (HGNC:14262): (activator of transcription and developmental regulator AUTS2) This gene has been implicated in neurodevelopment and as a candidate gene for numerous neurological disorders, including autism spectrum disorders, intellectual disability, and developmental delay. Mutations in this gene have also been associated with non-neurological disorders, such as acute lymphoblastic leukemia, aging of the skin, early-onset androgenetic alopecia, and certain cancers. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, May 2014]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.39417452).
• BS2: High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AUTS2	NM_015570.4	c.64C>T	p.Arg22Trp	missense_variant	Exon 1 of 19	ENST00000342771.10	NP_056385.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AUTS2	ENST00000342771.10	c.64C>T	p.Arg22Trp	missense_variant	Exon 1 of 19	1	NM_015570.4	ENSP00000344087.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000111 AC: 13 AN: 1173092 Hom.: 0 Cov.: 32 AF XY: 0.00000881 AC XY: 5 AN XY: 567314

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000123

Gnomad4 OTH exome AF: 0.0000210

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Uncertain:2

Nov 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 22 of the AUTS2 protein (p.Arg22Trp). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with AUTS2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1205753). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Apr 20, 2022

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 27535533) -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.89
BayesDel_addAF	Benign	-0.092	T
BayesDel_noAF	Benign	-0.37
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Benign	0.22	.;.;T;.
Eigen	Uncertain	0.41
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Benign	0.33	N
LIST_S2	Uncertain	0.90	D;D;D;D
M_CAP	Pathogenic	0.88	D
MetaRNN	Benign	0.39	T;T;T;T
MetaSVM	Benign	-0.66	T
MutationAssessor	Benign	1.1	.;L;L;L
PrimateAI	Pathogenic	0.98	D
PROVEAN	Benign	-1.6	.;N;N;D
REVEL	Benign	0.14
Sift	Pathogenic	0.0	.;D;D;D
Sift4G	Pathogenic	0.0010	.;D;D;D
Polyphen		1.0	.;D;D;.
Vest4		0.28, 0.28, 0.47
MutPred		0.29		Loss of methylation at R27 (P = 0.0258);Loss of methylation at R27 (P = 0.0258);Loss of methylation at R27 (P = 0.0258);Loss of methylation at R27 (P = 0.0258);
MVP		0.29
MPC		2.6
ClinPred		0.96	D
GERP RS		3.7
Varity_R		0.19
gMVP		0.22

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

LitVar

Other links and lift over

dbSNP: rs1263138285; hg19: chr7-69064703;