rs767019998

Positions:

• chr2-29920137-T-A
• chr2-29920137-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_004304.5(ALK):​c.523A>T​(p.Ser175Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 33)
• Consequence: ALK NM_004304.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.01

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]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.27887636).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ALK	NM_004304.5	c.523A>T	p.Ser175Cys	missense_variant	1/29	ENST00000389048.8	NP_004295.2
ALK	XR_001738688.3	n.1450A>T		non_coding_transcript_exon_variant	1/18

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ALK	ENST00000389048.8	c.523A>T	p.Ser175Cys	missense_variant	1/29	1	NM_004304.5	ENSP00000373700	P1
	ENST00000669284.1	n.157+35112A>T		intron_variant, non_coding_transcript_variant

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	Benign	0.24
BayesDel_addAF	Uncertain	0.039	T
BayesDel_noAF	Benign	-0.18
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.11	T
Eigen	Benign	0.13
Eigen_PC	Benign	0.22
FATHMM_MKL	Benign	0.33	N
LIST_S2	Benign	0.67	T
M_CAP	Uncertain	0.092	D
MetaRNN	Benign	0.28	T
MetaSVM	Benign	-0.72	T
MutationAssessor	Benign	0.69	N
MutationTaster	Benign	0.78	N;N
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-0.69	N
REVEL	Benign	0.14
Sift	Uncertain	0.0070	D
Sift4G	Uncertain	0.024	D
Polyphen		0.89	P
Vest4		0.33
MutPred		0.35		Gain of catalytic residue at W176 (P = 0.0062);
MVP		0.71
MPC		0.33
ClinPred		0.58	D
GERP RS		4.2
Varity_R		0.11
gMVP		0.13

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: chr2-30143003;