8-16110147-G-A

Position:

chr8-16110147-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_138715.3(MSR1):c.1294C>T(p.Arg432Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000688 in 1,613,450 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000068 ( 1 hom. )

Consequence

MSR1
NM_138715.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.40

Variant links:

Genes affected

MSR1 (HGNC:7376): (macrophage scavenger receptor 1) This gene encodes the class A macrophage scavenger receptors, which include three different types (1, 2, 3) generated by alternative splicing of this gene. These receptors or isoforms are macrophage-specific trimeric integral membrane glycoproteins and have been implicated in many macrophage-associated physiological and pathological processes including atherosclerosis, Alzheimer's disease, and host defense. The isoforms type 1 and type 2 are functional receptors and are able to mediate the endocytosis of modified low density lipoproteins (LDLs). The isoform type 3 does not internalize modified LDL (acetyl-LDL) despite having the domain shown to mediate this function in the types 1 and 2 isoforms. It has an altered intracellular processing and is trapped within the endoplasmic reticulum, making it unable to perform endocytosis. The isoform type 3 can inhibit the function of isoforms type 1 and type 2 when co-expressed, indicating a dominant negative effect and suggesting a mechanism for regulation of scavenger receptor activity in macrophages. [provided by RefSeq, Jul 2008]

MSR1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.17373317).

BS2

High AC in GnomAd4 at 11 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MSR1	NM_138715.3 linkuse as main transcript	c.1294C>T	p.Arg432Trp	missense_variant	10/10	ENST00000262101.10
MSR1	NM_001363744.1 linkuse as main transcript	c.1348C>T	p.Arg450Trp	missense_variant	10/10
MSR1	NM_138716.3 linkuse as main transcript	c.1105C>T	p.Arg369Trp	missense_variant	9/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MSR1	ENST00000262101.10 linkuse as main transcript	c.1294C>T	p.Arg432Trp	missense_variant	10/10	1	NM_138715.3	P1	P21757-1
MSR1	ENST00000445506.6 linkuse as main transcript	c.1348C>T	p.Arg450Trp	missense_variant	10/10	1
MSR1	ENST00000355282.6 linkuse as main transcript	c.1105C>T	p.Arg369Trp	missense_variant	8/8	1			P21757-3
MSR1	ENST00000350896.3 linkuse as main transcript	c.1105C>T	p.Arg369Trp	missense_variant	9/9	5			P21757-3

Frequencies

GnomAD3 genomes

AF:

0.0000724

AC:

AN:

151986

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000883

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000638

AC:

AN:

250972

Hom.:

AF XY:

0.0000958

AC XY:

AN XY:

135714

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000971

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000684

AC:

100

AN:

1461464

Hom.:

Cov.:

AF XY:

0.0000743

AC XY:

AN XY:

727038

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000729

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.0000724

AC:

AN:

151986

Hom.:

Cov.:

AF XY:

0.0000674

AC XY:

AN XY:

74230

show subpopulations

Gnomad4 AFR

AF:

0.0000725

Gnomad4 AMR

AF:

0.0000656

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000883

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000198

Hom.:

Bravo

AF:

0.0000604

ExAC

AF:

0.0000247

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 20, 2023

The c.1294C>T (p.R432W) alteration is located in exon 10 (coding exon 9) of the MSR1 gene. This alteration results from a C to T substitution at nucleotide position 1294, causing the arginine (R) at amino acid position 432 to be replaced by a tryptophan (W). 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

Uncertain

0.36

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.18

.;T;.;.

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.65

FATHMM_MKL

Benign

0.022

LIST_S2

Benign

0.59

T;T;T;.

M_CAP

Benign

0.029

MetaRNN

Benign

0.17

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

.;L;.;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.6

N;D;D;N

REVEL

Benign

0.095

Sift

Uncertain

0.020

D;D;D;D

Sift4G

Uncertain

0.020

D;D;D;D

Polyphen

0.97

D;D;D;D

Vest4

0.23

MVP

0.55

MPC

0.010

ClinPred

0.38

GERP RS

1.3

Varity_R

0.13

gMVP

0.32

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

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