19-51491828-C-A

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_053003.4(SIGLEC12):c.1601G>T(p.Gly534Val) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 151,900 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

SIGLEC12
NM_053003.4 missense, splice_region

Scores

Splicing: ADA: 0.00001907

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.333

Variant links:

Genes affected

SIGLEC12 (HGNC:15482): (sialic acid binding Ig like lectin 12) Sialic acid-binding immunoglobulin-like lectins (SIGLECs) are a family of cell surface proteins belonging to the immunoglobulin superfamily. They mediate protein-carbohydrate interactions by selectively binding to different sialic acid moieties present on glycolipids and glycoproteins. This gene encodes a member of the SIGLEC3-like subfamily of SIGLECs. Members of this subfamily are characterized by an extracellular V-set immunoglobulin-like domain followed by two C2-set immunoglobulin-like domains, and the cytoplasmic tyrosine-based motifs ITIM and SLAM-like. The encoded protein, upon tyrosine phosphorylation, has been shown to recruit the Src homology 2 domain-containing protein-tyrosine phosphatases SHP1 and SHP2. It has been suggested that the protein is involved in the negative regulation of macrophage signaling by functioning as an inhibitory receptor. This gene is located in a cluster with other SIGLEC3-like genes on 19q13.4. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2013]

SIGLEC12 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07897872).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIGLEC12	NM_053003.4 link	c.1601G>T	p.Gly534Val	missense_variant, splice_region_variant	Exon 8 of 8	ENST00000291707.8	NP_443729.1	Q96PQ1-1
SIGLEC12	NM_033329.2 link	c.1247G>T	p.Gly416Val	missense_variant, splice_region_variant	Exon 7 of 7		NP_201586.1	Q96PQ1-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SIGLEC12	ENST00000291707.8 link	c.1601G>T	p.Gly534Val	missense_variant, splice_region_variant	Exon 8 of 8	1	NM_053003.4	ENSP00000291707.3	Q96PQ1-1
SIGLEC12	ENST00000596742.1 link	n.*816G>T		splice_region_variant, non_coding_transcript_exon_variant	Exon 8 of 8	1		ENSP00000469791.1	M0QYF3
SIGLEC12	ENST00000596742.1 link	n.*816G>T		3_prime_UTR_variant	Exon 8 of 8	1		ENSP00000469791.1	M0QYF3
SIGLEC12	ENST00000598614.1 link	c.1247G>T	p.Gly416Val	missense_variant, splice_region_variant	Exon 7 of 7	5		ENSP00000472873.1	Q96PQ1-2

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151900

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1401368

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

691460

Gnomad4 AFR exome

AF:

0.00

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:

0.00000658

AC:

AN:

151900

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74150

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 02, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1601G>T (p.G534V) alteration is located in exon 8 (coding exon 8) of the SIGLEC12 gene. This alteration results from a G to T substitution at nucleotide position 1601, causing the glycine (G) at amino acid position 534 to be replaced by a valine (V). 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

0.094

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.63

CADD

Benign

1.4

DANN

Benign

0.47

DEOGEN2

Benign

0.023

T;.

Eigen

Benign

-0.93

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.0051

LIST_S2

Benign

0.62

T;T

M_CAP

Benign

0.0019

MetaRNN

Benign

0.079

T;T

MetaSVM

Benign

-0.96

MutationAssessor

Uncertain

2.3

M;.

PrimateAI

Benign

0.39

PROVEAN

Pathogenic

-5.0

D;.

REVEL

Benign

0.069

Sift

Uncertain

0.0010

D;.

Sift4G

Uncertain

0.0070

D;D

Polyphen

0.063

B;P

Vest4

0.14

MutPred

0.19

Loss of catalytic residue at G534 (P = 0.1381);.;

MVP

0.13

MPC

0.080

ClinPred

0.14

GERP RS

-0.69

Varity_R

0.14

gMVP

0.071

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000019

dbscSNV1_RF

Benign

0.0

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