2-105881787-A-C

Variant summary

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

The NM_003581.5(NCK2):c.686A>C(p.Glu229Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: NCK2 NM_003581.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.88

Genes affected

NCK2 (HGNC:7665): (NCK adaptor protein 2) This gene encodes a member of the NCK family of adaptor proteins. The protein contains three SH3 domains and one SH2 domain. The protein has no known catalytic function but has been shown to bind and recruit various proteins involved in the regulation of receptor protein tyrosine kinases. It is through these regulatory activities that this protein is believed to be involved in cytoskeletal reorganization. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NCK2	NM_003581.5	c.686A>C	p.Glu229Ala	missense_variant	4/5	ENST00000233154.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NCK2	ENST00000233154.9	c.686A>C	p.Glu229Ala	missense_variant	4/5	5	NM_003581.5	P1
	ENST00000652190.1	n.752-7051T>G		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

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

Nov 17, 2023

The c.686A>C (p.E229A) alteration is located in exon 1 (coding exon 1) of the NCK2 gene. This alteration results from a A to C substitution at nucleotide position 686, causing the glutamic acid (E) at amino acid position 229 to be replaced by an alanine (A). 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	0.17
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
Cadd	Benign	23
Dann	Uncertain	0.98
DEOGEN2	Benign	0.094	T;T
Eigen	Benign	0.055
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Uncertain	0.96	D
M_CAP	Benign	0.040	D
MetaRNN	Uncertain	0.64	D;D
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.3	L;L
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-1.0	N;N
REVEL	Benign	0.23
Sift	Benign	0.35	T;T
Sift4G	Benign	0.40	T;T
Polyphen		0.070	B;B
Vest4		0.70
MutPred		0.53		Loss of sheet (P = 0.0126);Loss of sheet (P = 0.0126);
MVP		0.80
MPC		1.6
ClinPred		0.81	D
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.25
gMVP		0.68

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-106498243;