11-26332285-C-T

Variant names:

• chr11-26332285-C-T
• rs750220809
• NM_031418.4:c.10C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_031418.4(ANO3):​c.10C>T​(p.His4Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,882 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. H4N) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ANO3 NM_031418.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.66
• Publications: 0 publications found

Genes affected

ANO3 (HGNC:14004): (anoctamin 3) The protein encoded by this gene belongs to the TMEM16 family of predicted membrane proteins, that are also known as anoctamins. While little is known about the function of this gene, mutations in this gene have been associated with some cases of autosomal dominant craniocervical dystonia. Cells from individuals with a mutation in this gene exhibited abnormalities in endoplasmic reticulum-dependent calcium signaling. Studies in rat show that the rat ortholog of this protein interacts with, and modulates the activity of a sodium-activated potassium channel. Deletion of this gene caused increased pain sensitivity in the rat model system. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Aug 2015]

ANO3 Gene-Disease associations (from GenCC):

• dystonia 24

  Inheritance: AD Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P, Orphanet

ACMG classification

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=0.2729356).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_031418.4. 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
	ANO3	NM_031418.4	MANE Select	c.10C>T	p.His4Tyr	missense	Exon 1 of 27	NP_113606.2	Q9BYT9-1
	ANO3	NM_001313726.2		c.229+22566C>T		intron	N/A	NP_001300655.1	A0A5F9ZHL6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANO3	ENST00000256737.8	TSL:1 MANE Select	c.10C>T	p.His4Tyr	missense	Exon 1 of 27	ENSP00000256737.3	Q9BYT9-1
	ANO3	ENST00000531646.1	TSL:4	c.10C>T	p.His4Tyr	missense	Exon 1 of 5	ENSP00000435275.1	E9PKW2
	ANO3	ENST00000672621.1		c.229+22566C>T		intron	N/A	ENSP00000500506.1	A0A5F9ZHL6

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461882 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 727240

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112006

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 30

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.078	T
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Benign	0.80	T
M_CAP	Benign	0.028	D
MetaRNN	Benign	0.27	T
MetaSVM	Benign	-0.57	T
MutationAssessor	Benign	0.81	L
PhyloP100		4.7
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	-0.54	N
REVEL	Benign	0.23
Sift	Benign	0.082	T
Sift4G	Benign	0.26	T
Polyphen		0.85	P
Vest4		0.47
MutPred		0.32		Gain of catalytic residue at H4 (P = 0.0193)
MVP		0.70
MPC		0.28
ClinPred		0.97	D
GERP RS		5.9
PromoterAI		-0.042	Neutral
Varity_R		0.27
gMVP		0.57
Mutation Taster		=68/32	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs750220809; hg19: chr11-26353832;