2-69507428-A-C

Position:

• chr2-69507428-A-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_014911.5(AAK1):​c.2157T>G​(p.Leu719=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00124 in 1,612,326 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0066 (10 hom., cov: 32)
  • Exomes 𝑓: 0.00068 (11 hom.)
• Consequence: AAK1 NM_014911.5 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.118

Genes affected

AAK1 (HGNC:19679): (AP2 associated kinase 1) This gene encodes a member of the SNF1 subfamily of serine/threonine protein kinases. Adaptor-related protein complex 2 (AP-2 complexes) functions during receptor-mediated endocytosis to trigger clathrin assembly, interact with membrane-bound receptors, and recruit encodytic accessory factors. The encoded protein interacts with and phosphorylates a subunit of the AP-2 complex, which promotes binding of AP-2 to sorting signals found in membrane-bound receptors and subsequent receptor endocytosis. Its kinase activity is stimulated by clathrin. This kinase has been shown to play an important role in regulating the clathrin-mediated endocytosis of the rabies virus, facilitating infection. Inhibitors of this kinase are being studied as candidate therapeutics to disrupt the entry of viruses, including SARS-CoV-2, into target cells. It is also involved in positive regulation of Notch pathway signaling in mammals. Alternatively spliced transcript variants have been described, but their biological validity has not been determined. [provided by RefSeq, Aug 2020]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.63).
• BP6: Variant 2-69507428-A-C is Benign according to our data. Variant chr2-69507428-A-C is described in ClinVar as [Benign]. Clinvar id is 787232.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-0.118 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00657 (1001/152246) while in subpopulation AFR AF= 0.0231 (961/41538). AF 95% confidence interval is 0.0219. There are 10 homozygotes in gnomad4. There are 467 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1001 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AAK1	NM_014911.5	c.2157T>G	p.Leu719=	synonymous_variant	15/22	ENST00000409085.9
AAK1	NM_001371575.1	c.2157T>G	p.Leu719=	synonymous_variant	15/21
AAK1	NM_001371577.1	c.1980+1829T>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AAK1	ENST00000409085.9	c.2157T>G	p.Leu719=	synonymous_variant	15/22	5	NM_014911.5

Frequencies

GnomAD3 genomes AF: 0.00652 AC: 992 AN: 152128 Hom.: 10 Cov.: 32

Gnomad AFR AF: 0.0230

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00216

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00239

GnomAD3 exomes AF: 0.00146 AC: 359 AN: 246570 Hom.: 1 AF XY: 0.00105 AC XY: 141 AN XY: 133664

Gnomad AFR exome AF: 0.0210

Gnomad AMR exome AF: 0.000789

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000334

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000626

Gnomad OTH exome AF: 0.000665

GnomAD4 exome AF: 0.000685 AC: 1000 AN: 1460080 Hom.: 11 Cov.: 30 AF XY: 0.000587 AC XY: 426 AN XY: 726102

Gnomad4 AFR exome AF: 0.0238

Gnomad4 AMR exome AF: 0.00124

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000583

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000243

Gnomad4 OTH exome AF: 0.00177

GnomAD4 genome AF: 0.00657 AC: 1001 AN: 152246 Hom.: 10 Cov.: 32 AF XY: 0.00627 AC XY: 467 AN XY: 74444

Gnomad4 AFR AF: 0.0231

Gnomad4 AMR AF: 0.00216

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000208

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000147

Gnomad4 OTH AF: 0.00237

Alfa AF: 0.00238 Hom.: 3

Bravo AF: 0.00746

Asia WGS AF: 0.00173 AC: 6 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	May 21, 2018	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.63
CADD	Benign	5.3
DANN	Benign	0.69

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: rs150421832; hg19: chr2-69734560;