Genetic Variant NM_138715.3:c.877C>G (chr8-16155085-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_138715.3(MSR1):c.877C>G(p.Arg293Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,611,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

MSR1
NM_138715.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.22

Publications

66 publications found

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 Gene-Disease associations (from GenCC):

Barrett esophagus
Inheritance: Unknown Classification: LIMITED Submitted by: Laboratory for Molecular Medicine

MSR1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.2049188).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSR1	NM_138715.3 link	c.877C>G	p.Arg293Gly	missense_variant	Exon 6 of 10	ENST00000262101.10	NP_619729.1	P21757-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MSR1	ENST00000262101.10 link	c.877C>G	p.Arg293Gly	missense_variant	Exon 6 of 10	1	NM_138715.3	ENSP00000262101.5		P21757-1

Frequencies

GnomAD3 genomes

AF:

0.0000461

AC:

AN:

151834

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000279

AC:

AN:

250570

AF XY:

0.0000222

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000753

AC:

AN:

1459978

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726348

show subpopulations

African (AFR)

AF:

0.000239

AC:

AN:

33406

American (AMR)

AF:

0.00

AC:

AN:

44584

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26054

East Asian (EAS)

AF:

0.00

AC:

AN:

39664

South Asian (SAS)

AF:

0.00

AC:

AN:

86218

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53350

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1110676

Other (OTH)

AF:

0.00

AC:

AN:

60268

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000461

AC:

AN:

151834

Hom.:

Cov.:

AF XY:

0.0000540

AC XY:

AN XY:

74138

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41370

American (AMR)

AF:

0.00

AC:

AN:

15196

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10594

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67908

Other (OTH)

AF:

0.00

AC:

AN:

2082

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00000189

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.41

.;T;.;.;.;.

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.42

FATHMM_MKL

Benign

0.070

LIST_S2

Uncertain

0.94

D;D;D;.;D;D

M_CAP

Benign

0.043

MetaRNN

Benign

0.20

T;T;T;T;T;T

MetaSVM

Uncertain

-0.022

MutationAssessor

Uncertain

2.2

M;M;.;M;.;M

PhyloP100

1.2

PrimateAI

Benign

0.26

PROVEAN

Benign

-0.91

N;N;N;N;N;N

REVEL

Benign

0.22

Sift

Benign

0.20

T;T;T;T;T;T

Sift4G

Benign

0.52

T;T;T;T;T;T

Polyphen

0.45

B;P;P;B;.;P

Vest4

0.35

MutPred

0.44

.;.;Loss of methylation at R311 (P = 0.0159);.;.;.;

MVP

0.91

MPC

0.0048

ClinPred

0.030

GERP RS

2.8

Varity_R

0.15

gMVP

0.38

Mutation Taster

=92/8

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over