chr8-41660439-A-AG

Position:

• chr8-41660439-A-AG

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP6_Moderate

The NM_000037.4(ANK1):​c.*36+990dupC variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ANK1 NM_000037.4 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -4.92

Genes affected

ANK1 (HGNC:492): (ankyrin 1) Ankyrins are a family of proteins that link the integral membrane proteins to the underlying spectrin-actin cytoskeleton and play key roles in activities such as cell motility, activation, proliferation, contact and the maintenance of specialized membrane domains. Multiple isoforms of ankyrin with different affinities for various target proteins are expressed in a tissue-specific, developmentally regulated manner. Most ankyrins are typically composed of three structural domains: an amino-terminal domain containing multiple ankyrin repeats; a central region with a highly conserved spectrin binding domain; and a carboxy-terminal regulatory domain which is the least conserved and subject to variation. Ankyrin 1, the prototype of this family, was first discovered in the erythrocytes, but since has also been found in brain and muscles. Mutations in erythrocytic ankyrin 1 have been associated in approximately half of all patients with hereditary spherocytosis. Complex patterns of alternative splicing in the regulatory domain, giving rise to different isoforms of ankyrin 1 have been described. Truncated muscle-specific isoforms of ankyrin 1 resulting from usage of an alternate promoter have also been identified. [provided by RefSeq, Dec 2008]

ANK1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 8-41660439-A-AG is Benign according to our data. Variant chr8-41660439-A-AG is described in ClinVar as [Benign]. Clinvar id is 802400.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ANK1	NM_000037.4	c.*36+990dupC		intron_variant		ENST00000289734.13	NP_000028.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ANK1	ENST00000289734.13	c.*36+990dupC		intron_variant		1	NM_000037.4	ENSP00000289734.8

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 1.00 AC: 151512 AN: 151514 Hom.: 75755 AF XY: 1.00 AC XY: 80773 AN XY: 80774

Gnomad AFR exome AF: 1.00

Gnomad AMR exome AF: 1.00

Gnomad ASJ exome AF: 1.00

Gnomad EAS exome AF: 1.00

Gnomad SAS exome AF: 1.00

Gnomad FIN exome AF: 1.00

Gnomad NFE exome AF: 1.00

Gnomad OTH exome AF: 1.00

GnomAD4 exome Cov.: 0

GnomAD4 genome Cov.: 32

Alfa AF: 1.00 Hom.: 6729

Asia WGS AF: 1.00 AC: 3478 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hereditary spherocytosis type 1 Benign:1

Benign, criteria provided, single submitter

clinical testing

Mendelics

May 28, 2019

- -

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs59908561; hg19: chr8-41517958;