Genetic Variant SCARF2:p.Thr836Ser (chr22-20425469-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_182895.5(SCARF2):c.2507C>G(p.Thr836Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000171 in 1,400,424 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/16 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000064 ( 0 hom. )

Consequence

SCARF2
NM_182895.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.24

Variant links:

Genes affected

SCARF2 (HGNC:19869): (scavenger receptor class F member 2) The protein encoded by this gene is similar to SCARF1/SREC-I, a scavenger receptor protein that mediates the binding and degradation of acetylated low density lipoprotein (Ac-LDL). This protein has only little activity of internalizing modified low density lipoproteins (LDL), but it can interact with SCARF1 through its extracellular domain. The association of this protein with SCARF1 is suppressed by the presence of scavenger ligands. Alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

SCARF2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.049259543).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCARF2	NM_182895.5 link	c.2507C>G	p.Thr836Ser	missense_variant	Exon 11 of 11	ENST00000622235.5	NP_878315.2	Q96GP6-2
SCARF2	NM_153334.7 link	c.2522C>G	p.Thr841Ser	missense_variant	Exon 11 of 11		NP_699165.3	Q96GP6-1
SCARF2	XM_047441585.1 link	c.2621C>G	p.Thr874Ser	missense_variant	Exon 11 of 11		XP_047297541.1
SCARF2	XM_017029065.3 link	c.*736C>G		3_prime_UTR_variant	Exon 11 of 11		XP_016884554.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCARF2	ENST00000622235.5 link	c.2507C>G	p.Thr836Ser	missense_variant	Exon 11 of 11	1	NM_182895.5	ENSP00000477564.2		Q96GP6-2
SCARF2	ENST00000623402.1 link	c.2522C>G	p.Thr841Ser	missense_variant	Exon 11 of 11	1		ENSP00000485276.1		Q96GP6-1

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

152016

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000386

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

GnomAD3 exomes

AF:

0.0000210

AC:

AN:

95432

Hom.:

AF XY:

0.0000179

AC XY:

AN XY:

55940

show subpopulations

Gnomad AFR exome

AF:

0.000341

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000641

AC:

AN:

1248408

Hom.:

Cov.:

AF XY:

0.00000655

AC XY:

AN XY:

610512

show subpopulations

Gnomad4 AFR exome

AF:

0.000311

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000105

AC:

AN:

152016

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74260

show subpopulations

Gnomad4 AFR

AF:

0.000386

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.000162

ExAC

AF:

0.0000355

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Dec 10, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2519C>G (p.T840S) alteration is located in exon 11 (coding exon 11) of the SCARF2 gene. This alteration results from a C to G substitution at nucleotide position 2519, causing the threonine (T) at amino acid position 840 to be replaced by a serine (S). 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

0.092

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Benign

0.82

Eigen

Benign

-0.51

Eigen_PC

Benign

-0.46

FATHMM_MKL

Benign

0.73

LIST_S2

Benign

0.46

T;T

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.049

T;T

MetaSVM

Benign

-1.1

PrimateAI

Pathogenic

0.85

Sift4G

Benign

0.64

T;T

Vest4

0.064

MVP

0.25

ClinPred

0.025

GERP RS

2.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.036

gMVP

0.11

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