11-22221210-G-T

Variant names:

• chr11-22221210-G-T
• NM_213599.3:c.294G>T
• ANO5 p.Ala98Ala

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_213599.3(ANO5):​c.294G>T​(p.Ala98Ala) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. A98A) has been classified as Likely benign. The gene ANO5 is included in the ClinGen Criteria Specification Registry.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ANO5 NM_213599.3 splice_region, synonymous
• Scores: Splicing: ADA: 0.4758
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.14
• Publications: 0 publications found

Genes affected

ANO5 (HGNC:27337): (anoctamin 5) This gene encodes a member of the anoctamin family of transmembrane proteins. The encoded protein is likely a calcium activated chloride channel. Mutations in this gene have been associated with gnathodiaphyseal dysplasia. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2009]

ANO5 Gene-Disease associations (from GenCC):

• gnathodiaphyseal dysplasia

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Orphanet
• autosomal recessive limb-girdle muscular dystrophy

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• autosomal recessive limb-girdle muscular dystrophy type 2L

  Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
• Miyoshi muscular dystrophy 3

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Specifications for ANO5 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.43).
• BP7: Synonymous conserved (PhyloP=2.14 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_213599.3. 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
	ANO5	NM_213599.3	MANE Select	c.294G>T	p.Ala98Ala	splice_region synonymous	Exon 5 of 22	NP_998764.1	Q75V66
	ANO5	NM_001142649.2		c.291G>T	p.Ala97Ala	splice_region synonymous	Exon 5 of 22	NP_001136121.1
	ANO5	NM_001410963.1		c.252G>T	p.Ala84Ala	splice_region synonymous	Exon 4 of 21	NP_001397892.1	A0A804HL91

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANO5	ENST00000324559.9	TSL:1 MANE Select	c.294G>T	p.Ala98Ala	splice_region synonymous	Exon 5 of 22	ENSP00000315371.9	Q75V66
	ANO5	ENST00000682266.1		c.-157G>T		5_prime_UTR_premature_start_codon_gain	Exon 3 of 20	ENSP00000507766.1	A0A804HLK6
	ANO5	ENST00000683411.1		c.-157G>T		5_prime_UTR_premature_start_codon_gain	Exon 4 of 21	ENSP00000508397.1	A0A804HLK6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 28

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.43
CADD	Benign	13
DANN	Benign	0.81
PhyloP100		2.1

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.48
dbscSNV1_RF	Benign	0.60
SpliceAI score (max)		0.070		Details are displayed if max score is > 0.2

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr11-22242756; COSMIC: COSV100202385;