rs1057519771

Variant names:

• chr9-130872201-G-C
• rs1057519771
• NM_005157.6:c.895G>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_005157.6(ABL1):​c.895G>C​(p.Val299Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as (no stars). Synonymous variant affecting the same amino acid position (i.e. V299V) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ABL1 NM_005157.6 missense
• Clinical Significance: - - O:1
• Conservation: PhyloP100: 10.0
• Publications: 237 publications found

Genes affected

ABL1 (HGNC:76): (ABL proto-oncogene 1, non-receptor tyrosine kinase) This gene is a protooncogene that encodes a protein tyrosine kinase involved in a variety of cellular processes, including cell division, adhesion, differentiation, and response to stress. The activity of the protein is negatively regulated by its SH3 domain, whereby deletion of the region encoding this domain results in an oncogene. The ubiquitously expressed protein has DNA-binding activity that is regulated by CDC2-mediated phosphorylation, suggesting a cell cycle function. This gene has been found fused to a variety of translocation partner genes in various leukemias, most notably the t(9;22) translocation that results in a fusion with the 5' end of the breakpoint cluster region gene (BCR; MIM:151410). Alternative splicing of this gene results in two transcript variants, which contain alternative first exons that are spliced to the remaining common exons. [provided by RefSeq, Aug 2014]

ABL1 Gene-Disease associations (from GenCC):

• congenital heart defects and skeletal malformations syndrome

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, G2P
• connective tissue disorder

  Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
• bone development disease

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.895

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABL1	NM_005157.6	c.895G>C	p.Val299Leu	missense_variant	Exon 5 of 11	ENST00000318560.6	NP_005148.2
ABL1	NM_007313.3	c.952G>C	p.Val318Leu	missense_variant	Exon 5 of 11		NP_009297.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABL1	ENST00000318560.6	c.895G>C	p.Val299Leu	missense_variant	Exon 5 of 11	1	NM_005157.6	ENSP00000323315.5
ABL1	ENST00000372348.9	c.952G>C	p.Val318Leu	missense_variant	Exon 5 of 11	1		ENSP00000361423.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 33

ClinVar

Significance: -

Submissions summary: Other:1

Revision: -

Submissions by phenotype

Blast phase chronic myelogenous leukemia, BCR-ABL1 positive Other:1

Feb 26, 2025

Molecular Diagnostics Division, Virginia Commonwealth University

Significance: -

Review Status: criteria provided, single submitter

Collection Method: clinical testing

ABL1 Val299Leu was sequenced from a patient during treatment with dasatinib suspected of relapse. ABL1 Val299Leu has been reported in the literature to confer resistance to imatinib, dasatinib, and bosutinib but sensitivity to nilotinib is retained. PMID: 23086624 PMID: 26297264 PMID: 24989279 -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.34	D
BayesDel_noAF	Pathogenic	0.24
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.84	.;D
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.55
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.97	D;D
M_CAP	Benign	0.054	D
MetaRNN	Pathogenic	0.89	D;D
MetaSVM	Benign	-0.35	T
MutationAssessor	Benign	0.95	.;L
PhyloP100		10
PrimateAI	Pathogenic	0.84	D
PROVEAN	Uncertain	-2.8	D;D
REVEL	Pathogenic	0.66
Sift	Benign	0.032	D;D
Sift4G	Pathogenic	0.0	D;D
Polyphen		0.95	.;P
Vest4		0.77
MutPred		0.81		.;Loss of methylation at K294 (P = 0.0995);
MVP		0.94
MPC		2.3
ClinPred		0.98	D
GERP RS		5.5
RBP_binding_hub_radar		0.97
RBP_regulation_power_radar		2.8
Varity_R		0.86
gMVP		0.90
Mutation Taster		=26/74	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs1057519771; hg19: chr9-133747588;