chr11-22259520-T-C

Variant names:

• chr11-22259520-T-C
• rs1403946332
• NM_213599.3:c.1409T>C

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1 PM2 PM5

The NM_213599.3(ANO5):​c.1409T>C​(p.Met470Thr) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000205 in 1,461,520 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M470K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ANO5 NM_213599.3 missense, splice_region
• Scores: Splicing: ADA: 0.007418
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.90
• 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):

• autosomal recessive limb-girdle muscular dystrophy

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• gnathodiaphyseal dysplasia

  Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
• autosomal recessive limb-girdle muscular dystrophy type 2L

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

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

ACMG classification

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 12 uncertain in NM_213599.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr11-22259520-T-G is described in ClinVar as Pathogenic. ClinVar VariationId is 446703.Status of the report is criteria_provided_single_submitter, 1 stars.

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANO5	NM_213599.3	MANE Select	c.1409T>C	p.Met470Thr	missense splice_region	Exon 15 of 22	NP_998764.1
	ANO5	NM_001142649.2		c.1406T>C	p.Met469Thr	missense splice_region	Exon 15 of 22	NP_001136121.1
	ANO5	NM_001410963.1		c.1367T>C	p.Met456Thr	missense splice_region	Exon 14 of 21	NP_001397892.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ANO5	ENST00000324559.9	TSL:1 MANE Select	c.1409T>C	p.Met470Thr	missense splice_region	Exon 15 of 22	ENSP00000315371.9
	ANO5	ENST00000682341.1		c.1367T>C	p.Met456Thr	missense splice_region	Exon 14 of 21	ENSP00000508251.1
	ANO5	ENST00000684663.1		c.1364T>C	p.Met455Thr	missense splice_region	Exon 14 of 21	ENSP00000508009.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251334 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000544

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: 1461520 Hom.: 0 Cov.: 32 AF XY: 0.00000275 AC XY: 2 AN XY: 727060

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

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.0000504 AC: 2 AN: 39684

South Asian (SAS) AF: 0.00 AC: 0 AN: 86250

European-Finnish (FIN) AF: 0.0000187 AC: 1 AN: 53414

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111712

Other (OTH) AF: 0.00 AC: 0 AN: 60368

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.44
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	19
DANN	Uncertain	0.98
DEOGEN2	Benign	0.33	T
Eigen	Benign	-0.094
Eigen_PC	Benign	0.050
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.78	T
M_CAP	Uncertain	0.11	D
MetaRNN	Uncertain	0.46	T
MetaSVM	Benign	-0.74	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		4.9
PrimateAI	Uncertain	0.53	T
PROVEAN	Uncertain	-3.1	D
REVEL	Benign	0.24
Sift	Benign	0.032	D
Sift4G	Uncertain	0.017	D
Polyphen		0.0090	B
Vest4		0.34
MutPred		0.68		Loss of stability (P = 0.097)
MVP		0.54
MPC		0.37
ClinPred		0.94	D
GERP RS		5.4
Varity_R		0.33
gMVP		0.86
Mutation Taster		=77/23	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0074
dbscSNV1_RF	Benign	0.038
SpliceAI score (max)		0.11		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: rs1403946332; hg19: chr11-22281066;