Genetic Variant SCARF2:p.Ala833Pro (chr22-20425479-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_182895.5(SCARF2):c.2497G>C(p.Ala833Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000532 in 1,372,976 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A833G) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000052 ( 0 hom. )

Consequence

SCARF2
NM_182895.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.186

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

van den Ende-Gupta syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia

SCARF2 links:

ENSG00000305663 (HGNC:):

ENSG00000305663 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08390048).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_182895.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SCARF2	NM_182895.5	MANE Select	c.2497G>C	p.Ala833Pro	missense	Exon 11 of 11	NP_878315.2	Q96GP6-2
	SCARF2	NM_153334.7		c.2512G>C	p.Ala838Pro	missense	Exon 11 of 11	NP_699165.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SCARF2	ENST00000622235.5	TSL:1 MANE Select	c.2497G>C	p.Ala833Pro	missense	Exon 11 of 11	ENSP00000477564.2	Q96GP6-2
SCARF2	ENST00000623402.1	TSL:1	c.2512G>C	p.Ala838Pro	missense	Exon 11 of 11	ENSP00000485276.1	Q96GP6-1
SCARF2	ENST00000925309.1		c.2626G>C	p.Ala876Pro	missense	Exon 11 of 11	ENSP00000595368.1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

151996

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000615

AC:

AN:

81342

AF XY:

0.0000210

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000901

Gnomad OTH exome

AF:

0.000697

GnomAD4 exome

AF:

0.0000524

AC:

AN:

1220980

Hom.:

Cov.:

AF XY:

0.0000488

AC XY:

AN XY:

594350

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

25196

American (AMR)

AF:

0.00

AC:

AN:

18288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17124

East Asian (EAS)

AF:

0.00

AC:

AN:

30396

South Asian (SAS)

AF:

0.00

AC:

AN:

53056

European-Finnish (FIN)

AF:

0.0000344

AC:

AN:

29030

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3918

European-Non Finnish (NFE)

AF:

0.0000623

AC:

AN:

994824

Other (OTH)

AF:

0.0000203

AC:

AN:

49148

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

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:

0.0000592

AC:

AN:

151996

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74250

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41404

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10574

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.000118

AC:

AN:

67962

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

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:

0.00

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.0000359

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.063

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.51

CADD

Benign

(source)

DANN

Uncertain

0.98

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.061

LIST_S2

Benign

0.42

M_CAP

Uncertain

0.25

MetaRNN

Benign

0.084

MetaSVM

Benign

-1.0

PhyloP100

-0.19

PrimateAI

Uncertain

0.74

Sift4G

Benign

0.35

Vest4

0.12

MVP

0.072

ClinPred

0.031

GERP RS

3.6

Varity_R

0.15

gMVP

0.17

Mutation Taster

=81/19

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over