Genetic Variant NM_002447.4:c.3694G>A (chr3-49890601-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_002447.4(MST1R):c.3694G>A(p.Asp1232Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000041 in 1,461,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

MST1R
NM_002447.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.02

Variant links:

Genes affected

MST1R (HGNC:7381): (macrophage stimulating 1 receptor) This gene encodes a cell surface receptor for macrophage-stimulating protein (MSP) with tyrosine kinase activity. The mature form of this protein is a heterodimer of disulfide-linked alpha and beta subunits, generated by proteolytic cleavage of a single-chain precursor. The beta subunit undergoes tyrosine phosphorylation upon stimulation by MSP. This protein is expressed on the ciliated epithelia of the mucociliary transport apparatus of the lung, and together with MSP, thought to be involved in host defense. Alternative splicing generates multiple transcript variants encoding different isoforms that may undergo similar proteolytic processing. [provided by RefSeq, Jan 2016]

MST1R links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.864

BS2

High AC in GnomAdExome4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MST1R	NM_002447.4 link	c.3694G>A	p.Asp1232Asn	missense_variant	Exon 18 of 20	ENST00000296474.8	NP_002438.2	Q04912-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MST1R	ENST00000296474.8 link	c.3694G>A	p.Asp1232Asn	missense_variant	Exon 18 of 20	1	NM_002447.4	ENSP00000296474.3		Q04912-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000410

AC:

AN:

1461708

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727138

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 10, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3694G>A (p.D1232N) alteration is located in exon 18 (coding exon 18) of the MST1R gene. This alteration results from a G to A substitution at nucleotide position 3694, causing the aspartic acid (D) at amino acid position 1232 to be replaced by an asparagine (N). 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

0.15

BayesDel_addAF

Benign

-0.067

BayesDel_noAF

Benign

-0.33

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.50

T;.;.;.

Eigen

Benign

0.14

Eigen_PC

Benign

0.057

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.97

D;D;D;D

M_CAP

Benign

0.085

MetaRNN

Pathogenic

0.86

D;D;D;D

MetaSVM

Uncertain

0.094

MutationAssessor

Benign

0.89

L;.;.;.

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-4.4

D;.;.;D

REVEL

Uncertain

0.38

Sift

Benign

0.031

D;.;.;D

Sift4G

Uncertain

0.039

D;D;D;D

Polyphen

1.0

D;.;.;.

Vest4

0.58

MutPred

0.73

Loss of stability (P = 0.0436);.;.;.;

MVP

0.69

MPC

0.68

ClinPred

0.98

GERP RS

3.5

Varity_R

0.41

gMVP

0.71

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over