8-41744167-C-T

Variant names:

• chr8-41744167-C-T
• rs521184
• NM_000037.4:c.130-10098G>A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000037.4(ANK1):​c.130-10098G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.504 in 151,978 control chromosomes in the GnomAD database, including 21,106 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.50 (21106 hom., cov: 32)
• Consequence: ANK1 NM_000037.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.52

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.751 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANK1	NM_000037.4	c.130-10098G>A		intron_variant	Intron 2 of 42	ENST00000289734.13	NP_000028.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ANK1	ENST00000289734.13	c.130-10098G>A		intron_variant	Intron 2 of 42	1	NM_000037.4	ENSP00000289734.8

Frequencies

GnomAD3 genomes AF: 0.504 AC: 76523 AN: 151860 Hom.: 21104 Cov.: 32

Gnomad AFR AF: 0.271

Gnomad AMI AF: 0.624

Gnomad AMR AF: 0.545

Gnomad ASJ AF: 0.532

Gnomad EAS AF: 0.771

Gnomad SAS AF: 0.558

Gnomad FIN AF: 0.509

Gnomad MID AF: 0.586

Gnomad NFE AF: 0.608

Gnomad OTH AF: 0.514

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.504 AC: 76549 AN: 151978 Hom.: 21106 Cov.: 32 AF XY: 0.504 AC XY: 37431 AN XY: 74290

Gnomad4 AFR AF: 0.271

Gnomad4 AMR AF: 0.545

Gnomad4 ASJ AF: 0.532

Gnomad4 EAS AF: 0.771

Gnomad4 SAS AF: 0.560

Gnomad4 FIN AF: 0.509

Gnomad4 NFE AF: 0.607

Gnomad4 OTH AF: 0.516

Alfa AF: 0.590 Hom.: 54476

Bravo AF: 0.499

Asia WGS AF: 0.617 AC: 2146 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	0.60
DANN	Benign	0.48

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

Publications

LitVar

Other links and lift over

dbSNP: rs521184; hg19: chr8-41601685;