19-51416881-C-A

Variant names:

• chr19-51416881-C-A
• NM_033130.5:c.491G>T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_033130.5(SIGLEC10):​c.491G>T​(p.Cys164Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SIGLEC10 NM_033130.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.98

Genes affected

SIGLEC10 (HGNC:15620): (sialic acid binding Ig like lectin 10) SIGLECs are members of the immunoglobulin superfamily that are expressed on the cell surface. Most SIGLECs have 1 or more cytoplasmic immune receptor tyrosine-based inhibitory motifs, or ITIMs. SIGLECs are typically expressed on cells of the innate immune system, with the exception of the B-cell expressed SIGLEC6 (MIM 604405).[supplied by OMIM, Jul 2002]

SIGLEC10-AS1 (HGNC:40719): (SIGLEC10 antisense RNA 1)

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.986

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SIGLEC10	NM_033130.5	c.491G>T	p.Cys164Phe	missense_variant	Exon 3 of 11	ENST00000339313.10	NP_149121.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SIGLEC10	ENST00000339313.10	c.491G>T	p.Cys164Phe	missense_variant	Exon 3 of 11	1	NM_033130.5	ENSP00000345243.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461884 Hom.: 0 Cov.: 101 AF XY: 0.00000138 AC XY: 1 AN XY: 727246

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Dec 14, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.491G>T (p.C164F) alteration is located in exon 3 (coding exon 3) of the SIGLEC10 gene. This alteration results from a G to T substitution at nucleotide position 491, causing the cysteine (C) at amino acid position 164 to be replaced by a phenylalanine (F). 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	Pathogenic	0.96
BayesDel_addAF	Pathogenic	0.39	D
BayesDel_noAF	Pathogenic	0.33
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.80	.;.;D;T
Eigen	Uncertain	0.46
Eigen_PC	Uncertain	0.29
FATHMM_MKL	Benign	0.66	D
LIST_S2	Benign	0.82	T;T;T;T
M_CAP	Uncertain	0.24	D
MetaRNN	Pathogenic	0.99	D;D;D;D
MetaSVM	Uncertain	0.74	D
MutationAssessor	Pathogenic	3.4	M;.;M;.
PrimateAI	Uncertain	0.58	T
PROVEAN	Pathogenic	-8.8	D;D;D;D
REVEL	Pathogenic	0.77
Sift	Pathogenic	0.0	D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;.
Polyphen		1.0	D;D;D;.
Vest4		0.92
MutPred		0.82		Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);Loss of sheet (P = 0.0084);.;
MVP		0.88
ClinPred		1.0	D
GERP RS		4.7
Varity_R		0.72
gMVP		0.85

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-51920135;