6-117288789-A-C

Position:

• chr6-117288789-A-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001378902.1(ROS1):​c.6729T>G​(p.Asp2243Glu) 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. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: ROS1 NM_001378902.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.207

Genes affected

ROS1 (HGNC:10261): (ROS proto-oncogene 1, receptor tyrosine kinase) This proto-oncogene, highly-expressed in a variety of tumor cell lines, belongs to the sevenless subfamily of tyrosine kinase insulin receptor genes. The protein encoded by this gene is a type I integral membrane protein with tyrosine kinase activity. The protein may function as a growth or differentiation factor receptor. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.049158216).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ROS1	NM_001378902.1	c.6729T>G	p.Asp2243Glu	missense_variant	44/44	ENST00000368507.8	NP_001365831.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ROS1	ENST00000368507.8	c.6729T>G	p.Asp2243Glu	missense_variant	44/44	5	NM_001378902.1	ENSP00000357493.3
ROS1	ENST00000368508.7	c.6747T>G	p.Asp2249Glu	missense_variant	43/43	1		ENSP00000357494.3

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

Feb 12, 2024

The c.6747T>G (p.D2249E) alteration is located in exon 43 (coding exon 43) of the ROS1 gene. This alteration results from a T to G substitution at nucleotide position 6747, causing the aspartic acid (D) at amino acid position 2249 to be replaced by a glutamic acid (E). 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	0.099
BayesDel_addAF	Benign	-0.29	T
BayesDel_noAF	Benign	-0.66
CADD	Benign	7.6
DANN	Benign	0.87
DEOGEN2	Benign	0.077	T;.
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.059	N
LIST_S2	Benign	0.37	T;T
M_CAP	Benign	0.0081	T
MetaRNN	Benign	0.049	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.0	N;.
PrimateAI	Benign	0.23	T
PROVEAN	Benign	0.23	N;N
REVEL	Benign	0.062
Sift	Benign	0.39	T;T
Sift4G	Benign	0.64	T;T
Polyphen		0.0	B;.
Vest4		0.011
MutPred		0.45		Gain of disorder (P = 0.129);.;
MVP		0.16
MPC		0.024
ClinPred		0.041	T
GERP RS		-1.1
Varity_R		0.027
gMVP		0.086

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: chr6-117609952;