rs762358335

Positions:

• chr2-29296985-C-A
• chr2-29296985-C-G
• chr2-29296985-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The ENST00000389048.8(ALK):​c.1720G>T​(p.Gly574Trp) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G574R) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ALK ENST00000389048.8 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.84

Genes affected

ALK (HGNC:427): (ALK receptor tyrosine kinase) This gene encodes a receptor tyrosine kinase, which belongs to the insulin receptor superfamily. This protein comprises an extracellular domain, an hydrophobic stretch corresponding to a single pass transmembrane region, and an intracellular kinase domain. It plays an important role in the development of the brain and exerts its effects on specific neurons in the nervous system. This gene has been found to be rearranged, mutated, or amplified in a series of tumours including anaplastic large cell lymphomas, neuroblastoma, and non-small cell lung cancer. The chromosomal rearrangements are the most common genetic alterations in this gene, which result in creation of multiple fusion genes in tumourigenesis, including ALK (chromosome 2)/EML4 (chromosome 2), ALK/RANBP2 (chromosome 2), ALK/ATIC (chromosome 2), ALK/TFG (chromosome 3), ALK/NPM1 (chromosome 5), ALK/SQSTM1 (chromosome 5), ALK/KIF5B (chromosome 10), ALK/CLTC (chromosome 17), ALK/TPM4 (chromosome 19), and ALK/MSN (chromosome X).[provided by RefSeq, Jan 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.899

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ALK	NM_004304.5	c.1720G>T	p.Gly574Trp	missense_variant	9/29	ENST00000389048.8	NP_004295.2
ALK	XR_001738688.3	n.2647G>T		non_coding_transcript_exon_variant	9/18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ALK	ENST00000389048.8	c.1720G>T	p.Gly574Trp	missense_variant	9/29	1	NM_004304.5	ENSP00000373700	P1
ALK	ENST00000618119.4	c.589G>T	p.Gly197Trp	missense_variant	8/28	5		ENSP00000482733
ALK	ENST00000498037.1	n.275G>T		non_coding_transcript_exon_variant	3/5	4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.34
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Pathogenic	27
DANN	Uncertain	0.99
DEOGEN2	Benign	0.24	T;.
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.36
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.86	D;D
M_CAP	Benign	0.062	D
MetaRNN	Pathogenic	0.90	D;D
MetaSVM	Benign	-0.98	T
MutationAssessor	Uncertain	2.4	M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.63	T
PROVEAN	Uncertain	-3.6	D;.
REVEL	Uncertain	0.32
Sift	Uncertain	0.0020	D;.
Sift4G	Pathogenic	0.0010	D;D
Polyphen		1.0	D;.
Vest4		0.85
MutPred		0.74		Loss of disorder (P = 0.0012);.;
MVP		0.79
MPC		0.77
ClinPred		0.99	D
GERP RS		5.2
Varity_R		0.82
gMVP		0.72

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: chr2-29519851; COSMIC: COSV66595283;