NM_138715.3:c.1334C>G

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_138715.3(MSR1):c.1334C>G(p.Ala445Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000595 in 1,613,504 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

MSR1
NM_138715.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.64

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:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSR1	NM_138715.3 link	c.1334C>G	p.Ala445Gly	missense_variant	Exon 10 of 10	ENST00000262101.10	NP_619729.1	P21757-1
MSR1	NM_001363744.1 link	c.1388C>G	p.Ala463Gly	missense_variant	Exon 10 of 10		NP_001350673.1
MSR1	NM_138716.3 link	c.1145C>G	p.Ala382Gly	missense_variant	Exon 9 of 9		NP_619730.1	P21757-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MSR1	ENST00000262101.10 link	c.1334C>G	p.Ala445Gly	missense_variant	Exon 10 of 10	1	NM_138715.3	ENSP00000262101.5	P21757-1
MSR1	ENST00000445506.6 link	c.1388C>G	p.Ala463Gly	missense_variant	Exon 10 of 10	1		ENSP00000405453.2	B4DDJ5
MSR1	ENST00000355282.6 link	c.1145C>G	p.Ala382Gly	missense_variant	Exon 8 of 8	1		ENSP00000347430.2	P21757-3
MSR1	ENST00000350896.3 link	c.1145C>G	p.Ala382Gly	missense_variant	Exon 9 of 9	5		ENSP00000262100.3	P21757-3

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152084

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000162

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251146

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135742

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000575

AC:

AN:

1461420

Hom.:

Cov.:

AF XY:

0.0000550

AC XY:

AN XY:

727020

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

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:

0.0000720

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152084

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000847

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 12, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1334C>G (p.A445G) alteration is located in exon 10 (coding exon 9) of the MSR1 gene. This alteration results from a C to G substitution at nucleotide position 1334, causing the alanine (A) at amino acid position 445 to be replaced by a glycine (G). 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

Pathogenic

0.62

BayesDel_addAF

Uncertain

0.089

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.30

.;T;.;.

Eigen

Pathogenic

0.93

Eigen_PC

Pathogenic

0.83

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.96

D;D;D;.

M_CAP

Benign

0.023

MetaRNN

Uncertain

0.57

D;D;D;D

MetaSVM

Uncertain

-0.024

MutationAssessor

Pathogenic

4.2

.;H;.;.

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-1.9

N;D;D;N

REVEL

Uncertain

0.37

Sift

Pathogenic

0.0

D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

1.0

D;D;D;D

Vest4

0.51

MVP

0.66

MPC

0.015

ClinPred

0.99

GERP RS

5.1

Varity_R

0.87

gMVP

0.38

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