8-16166714-G-C

Variant names:

• chr8-16166714-G-C
• rs1871573
• NM_138715.3:c.630+1744C>G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_138715.3(MSR1):​c.630+1744C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.485 in 151,696 control chromosomes in the GnomAD database, including 18,671 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.48 (18671 hom., cov: 30)
• Consequence: MSR1 NM_138715.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.870

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.754 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MSR1	NM_138715.3	c.630+1744C>G		intron_variant	Intron 4 of 9	ENST00000262101.10	NP_619729.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MSR1	ENST00000262101.10	c.630+1744C>G		intron_variant	Intron 4 of 9	1	NM_138715.3	ENSP00000262101.5

Frequencies

GnomAD3 genomes AF: 0.485 AC: 73530 AN: 151578 Hom.: 18659 Cov.: 30

Gnomad AFR AF: 0.335

Gnomad AMI AF: 0.579

Gnomad AMR AF: 0.521

Gnomad ASJ AF: 0.548

Gnomad EAS AF: 0.775

Gnomad SAS AF: 0.679

Gnomad FIN AF: 0.510

Gnomad MID AF: 0.481

Gnomad NFE AF: 0.523

Gnomad OTH AF: 0.514

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.485 AC: 73567 AN: 151696 Hom.: 18671 Cov.: 30 AF XY: 0.490 AC XY: 36310 AN XY: 74096

Gnomad4 AFR AF: 0.335

Gnomad4 AMR AF: 0.522

Gnomad4 ASJ AF: 0.548

Gnomad4 EAS AF: 0.774

Gnomad4 SAS AF: 0.678

Gnomad4 FIN AF: 0.510

Gnomad4 NFE AF: 0.523

Gnomad4 OTH AF: 0.516

Alfa AF: 0.495 Hom.: 2388

Bravo AF: 0.480

Asia WGS AF: 0.702 AC: 2437 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.15
DANN	Benign	0.43

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

Other links and lift over

dbSNP: rs1871573; hg19: chr8-16024223;