Genetic Variant SIGLEC15:p.Arg99Leu (chr18-45837696-G-T) – 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_213602.3(SIGLEC15):c.296G>T(p.Arg99Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000406 in 1,476,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R99P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000038 ( 0 hom. )

Consequence

SIGLEC15
NM_213602.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.06

Publications

0 publications found

Variant links:

Genes affected

SIGLEC15 (HGNC:27596): (sialic acid binding Ig like lectin 15) Predicted to be involved in regulation of actin cytoskeleton organization; regulation of bone resorption; and regulation of osteoclast development. Predicted to be integral component of membrane. Predicted to be part of protein-containing complex. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SIGLEC15 links:

EPG5 (HGNC:29331): (ectopic P-granules 5 autophagy tethering factor) This gene encodes a large coiled coil domain-containing protein that functions in autophagy during starvation conditions. Mutations in this gene cause Vici syndrome. [provided by RefSeq, Aug 2015]

EPG5 Gene-Disease associations (from GenCC):

Vici syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P

EPG5 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=0.18548924).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIGLEC15	NM_213602.3 link	c.296G>T	p.Arg99Leu	missense_variant	Exon 3 of 6	ENST00000389474.8	NP_998767.1	Q6ZMC9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SIGLEC15	ENST00000389474.8 link	c.296G>T	p.Arg99Leu	missense_variant	Exon 3 of 6	1	NM_213602.3	ENSP00000374125.2		Q6ZMC9-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152106

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000378

AC:

AN:

1323940

Hom.:

Cov.:

AF XY:

0.00000767

AC XY:

AN XY:

651582

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26516

American (AMR)

AF:

0.00

AC:

AN:

26328

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22562

East Asian (EAS)

AF:

0.0000334

AC:

AN:

29934

South Asian (SAS)

AF:

0.0000561

AC:

AN:

71334

European-Finnish (FIN)

AF:

0.00

AC:

AN:

32830

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3900

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1055428

Other (OTH)

AF:

0.00

AC:

AN:

55108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152106

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.000207

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67982

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.49

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0099

Eigen

Benign

-0.14

Eigen_PC

Benign

-0.063

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.55

M_CAP

Benign

0.042

MetaRNN

Benign

0.19

MetaSVM

Benign

-1.1

MutationAssessor

Benign

-0.34

PhyloP100

4.1

PrimateAI

Pathogenic

0.89

PROVEAN

Benign

-2.1

REVEL

Benign

0.12

Sift

Benign

0.10

Sift4G

Benign

0.16

Polyphen

0.50

Vest4

0.28

MutPred

0.52

Loss of catalytic residue at R99 (P = 0.0686);

MVP

0.35

MPC

0.99

ClinPred

0.71

GERP RS

2.6

PromoterAI

0.027

Neutral

(source)

Varity_R

0.084

gMVP

0.45

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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18-45837696-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over