rs1257688225

Variant names:

• chr11-22193510-C-T
• rs1257688225
• NM_213599.3:c.18C>T

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2 BP4_Strong BP6 BP7

The NM_213599.3(ANO5):​c.18C>T​(p.Leu6Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,850 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 Conflicting classifications of pathogenicity (no stars). The gene ANO5 is included in the ClinGen Criteria Specification Registry.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ANO5 NM_213599.3 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 0.876
• Publications: 1 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 -4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.56).
• BP6: Variant 11-22193510-C-T is Benign according to our data. Variant chr11-22193510-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 468835.
• BP7: Synonymous conserved (PhyloP=0.876 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.18C>T	p.Leu6Leu	synonymous	Exon 1 of 22	NP_998764.1	Q75V66
	ANO5	NM_001142649.2		c.18C>T	p.Leu6Leu	synonymous	Exon 1 of 22	NP_001136121.1
	ANO5	NM_001410963.1		c.18C>T	p.Leu6Leu	synonymous	Exon 1 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.18C>T	p.Leu6Leu	synonymous	Exon 1 of 22	ENSP00000315371.9	Q75V66
	ANO5	ENST00000682341.1		c.18C>T	p.Leu6Leu	synonymous	Exon 1 of 21	ENSP00000508251.1	A0A804HL91
	ANO5	ENST00000684663.1		c.18C>T	p.Leu6Leu	synonymous	Exon 1 of 21	ENSP00000508009.1	A0A804HKP2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000407 AC: 1 AN: 245474 AF XY: 0.00000751

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1460850 Hom.: 0 Cov.: 34 AF XY: 0.00000413 AC XY: 3 AN XY: 726646

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44652

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39668

South Asian (SAS) AF: 0.0000349 AC: 3 AN: 85974

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53072

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111770

Other (OTH) AF: 0.00 AC: 0 AN: 60352

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Conflicting classifications of pathogenicity

Revision: criteria provided, conflicting classifications

Pathogenic	VUS	Benign	Condition
-	-	1	Gnathodiaphyseal dysplasia;C1969785:Autosomal recessive limb-girdle muscular dystrophy type 2L (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.56
CADD	Benign	8.9
DANN	Benign	0.89
PhyloP100		0.88
PromoterAI		0.015	Neutral

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

Other links and lift over

dbSNP: rs1257688225; hg19: chr11-22215056;