rs1553386898
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Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_004304.5(ALK):c.4658C>G(p.Ala1553Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,614,074 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Consequence
ALK
NM_004304.5 missense
NM_004304.5 missense
Scores
1
2
16
Clinical Significance
Conservation
PhyloP100: 3.63
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]
CLIP4 (HGNC:26108): (CAP-Gly domain containing linker protein family member 4) Predicted to enable microtubule plus-end binding activity. Predicted to be involved in cytoplasmic microtubule organization. Located in intracellular membrane-bounded organelle. [provided by Alliance of Genome Resources, Apr 2022]
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ACMG classification
Classification made for transcript
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=0.23704809).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ALK | NM_004304.5 | c.4658C>G | p.Ala1553Gly | missense_variant | 29/29 | ENST00000389048.8 | NP_004295.2 | |
ALK | NM_001353765.2 | c.1454C>G | p.Ala485Gly | missense_variant | 10/10 | NP_001340694.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
ALK | ENST00000389048.8 | c.4658C>G | p.Ala1553Gly | missense_variant | 29/29 | 1 | NM_004304.5 | ENSP00000373700 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152190Hom.: 0 Cov.: 32
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GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461884Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 727244
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152190Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74342
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Neuroblastoma, susceptibility to, 3 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | May 19, 2023 | In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant  is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 538207). This variant has not been reported in the literature in individuals affected with ALK-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 1553 of the ALK protein (p.Ala1553Gly). - |
not provided Uncertain:1
Uncertain significance, no assertion criteria provided | clinical testing | Department of Pathology and Laboratory Medicine, Sinai Health System | - | The ALK p.Ala1553Gly variant was not identified in the literature nor was it identified in dbSNP, Cosmic or LOVD 3.0. The variant was identified in ClinVar (classified as a VUS by Invitae). The variant was not identified in the following control databases: the 1000 Genomes Project, the NHLBI GO Exome Sequencing Project, the Exome Aggregation Consortium (August 8th 2016), or the Genome Aggregation Database (March 6, 2019, v2.1.1). The p.Ala1553 residue is not conserved in mammals and four out of five computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and three of four in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | May 10, 2024 | The p.A1553G variant (also known as c.4658C>G), located in coding exon 29 of the ALK gene, results from a C to G substitution at nucleotide position 4658. The alanine at codon 1553 is replaced by glycine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
DEOGEN2
Benign
T;T;.
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
T;T;T
M_CAP
Benign
T
MetaRNN
Benign
T;T;T
MetaSVM
Benign
T
MutationAssessor
Benign
.;N;.
MutationTaster
Benign
N;N
PrimateAI
Uncertain
T
PROVEAN
Benign
.;N;.
REVEL
Benign
Sift
Benign
.;D;.
Sift4G
Benign
.;T;T
Polyphen
0.28
.;B;.
Vest4
0.060, 0.085
MutPred
0.14
.;Gain of relative solvent accessibility (P = 0.0479);.;
MVP
0.40
MPC
0.17
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at