2-69519087-G-A

Position:

• chr2-69519087-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014911.5(AAK1):​c.1364C>T​(p.Ala455Val) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A455S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: AAK1 NM_014911.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.21

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 Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1039356).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AAK1	NM_014911.5	c.1364C>T	p.Ala455Val	missense_variant	12/22	ENST00000409085.9
AAK1	NM_001371575.1	c.1364C>T	p.Ala455Val	missense_variant	12/21
AAK1	NM_001371577.1	c.1364C>T	p.Ala455Val	missense_variant	12/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AAK1	ENST00000409085.9	c.1364C>T	p.Ala455Val	missense_variant	12/22	5	NM_014911.5
AAK1	ENST00000406297.7	c.1364C>T	p.Ala455Val	missense_variant	12/18	1
AAK1	ENST00000606389.8	c.1364C>T	p.Ala455Val	missense_variant	12/18	5		P1
AAK1	ENST00000409068.5	c.1364C>T	p.Ala455Val	missense_variant	12/15	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1399792 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 690458

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 11, 2021

The c.1364C>T (p.A455V) alteration is located in exon 12 (coding exon 11) of the AAK1 gene. This alteration results from a C to T substitution at nucleotide position 1364, causing the alanine (A) at amino acid position 455 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.085
BayesDel_addAF	Benign	-0.25	T
BayesDel_noAF	Benign	-0.59
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.016	T;T;.
Eigen	Benign	-0.32
Eigen_PC	Benign	-0.16
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.75	T;T;T
M_CAP	Benign	0.0085	T
MetaRNN	Benign	0.10	T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-0.34	N;N;N
REVEL	Benign	0.082
Sift	Benign	0.040	D;D;T
Sift4G	Benign	0.29	T;T;T
Polyphen		0.0050, 0.0080	.;B;B
Vest4		0.061
MutPred		0.28		Loss of helix (P = 0.0123);Loss of helix (P = 0.0123);Loss of helix (P = 0.0123);
MVP		0.41
MPC		0.35
ClinPred		0.70	D
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.091
gMVP		0.10

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-69746219; COSMIC: COSV101117270; COSMIC: COSV101117270;