19-51528185-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001245.7(SIGLEC6):c.1081T>G(p.Phe361Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: SIGLEC6 NM_001245.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.517

Genes affected

SIGLEC6 (HGNC:10875): (sialic acid binding Ig like lectin 6) This gene encodes a member of the SIGLEC (sialic acid binding immunoglobulin-like lectin) family of proteins. The encoded transmembrane receptor binds sialyl-TN glycans and leptin. Placental expression of the encoded protein is upregulated in preeclampsia. [provided by RefSeq, Jul 2016]

ACMG classification

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=0.17114878).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SIGLEC6	NM_001245.7	c.1081T>G	p.Phe361Val	missense_variant	6/8	ENST00000425629.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SIGLEC6	ENST00000425629.8	c.1081T>G	p.Phe361Val	missense_variant	6/8	2	NM_001245.7	P2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 16, 2024

The c.1081T>G (p.F361V) alteration is located in exon 6 (coding exon 6) of the SIGLEC6 gene. This alteration results from a T to G substitution at nucleotide position 1081, causing the phenylalanine (F) at amino acid position 361 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	0.11
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.49
Cadd	Benign	10
Dann	Benign	0.68
Eigen	Benign	-0.80
Eigen_PC	Benign	-0.93
FATHMM_MKL	Benign	0.0077	N
LIST_S2	Benign	0.40	T;T;T;T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.17	T;T;T;T
MetaSVM	Benign	-0.97	T
MutationTaster	Benign	1.0	N;N;N;N;N;N
PrimateAI	Benign	0.37	T
REVEL	Benign	0.067
Sift4G	Benign	0.59	T;T;T;T
Polyphen		0.86	P;.;.;B
Vest4		0.27
MutPred		0.44		.;.;.;Gain of MoRF binding (P = 0.0805);
MVP		0.14
MPC		0.19
ClinPred		0.27	T
GERP RS		0.67
Varity_R		0.18
gMVP		0.079

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: rs1979559369; hg19: chr19-52031439;