19-51125701-C-G

Variant names:

• chr19-51125701-C-G
• rs377233936
• NM_014441.3:c.526C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_014441.3(SIGLEC9):​c.526C>G​(p.Pro176Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,926 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P176S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: SIGLEC9 NM_014441.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.28
• Publications: 0 publications found

Genes affected

SIGLEC9 (HGNC:10878): (sialic acid binding Ig like lectin 9) Predicted to enable monosaccharide binding activity and sialic acid binding activity. Predicted to be involved in cell adhesion. Predicted to act upstream of or within negative regulation of inflammatory response and negative regulation of phagocytosis, engulfment. Predicted to be located in external side of plasma membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000268595 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014441.3. 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
	SIGLEC9	NM_014441.3	MANE Select	c.526C>G	p.Pro176Ala	missense	Exon 2 of 7	NP_055256.1	Q9Y336-1
	SIGLEC9	NM_001198558.1		c.526C>G	p.Pro176Ala	missense	Exon 2 of 7	NP_001185487.1	Q9Y336-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SIGLEC9	ENST00000250360.8	TSL:1 MANE Select	c.526C>G	p.Pro176Ala	missense	Exon 2 of 7	ENSP00000250360.2	Q9Y336-1
	SIGLEC9	ENST00000850850.1		c.526C>G	p.Pro176Ala	missense	Exon 2 of 8	ENSP00000520939.1	A0ABJ7H2Z3
	SIGLEC9	ENST00000966614.1		c.526C>G	p.Pro176Ala	missense	Exon 2 of 8	ENSP00000636673.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152120 Hom.: 0 Cov.: 32

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: 0.00

Gnomad OTH AF: 0.000479

GnomAD2 exomes AF: 0.00000796 AC: 2 AN: 251324 AF XY: 0.00000736

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: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461806 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 727210

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53378

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000270 AC: 3 AN: 1111986

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152120 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74298

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 41410

American (AMR) AF: 0.00 AC: 0 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5180

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68022

Other (OTH) AF: 0.000479 AC: 1 AN: 2086

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.22
BayesDel_addAF	Benign	-0.26	T
BayesDel_noAF	Benign	-0.51
CADD	Benign	17
DANN	Uncertain	0.98
DEOGEN2	Benign	0.10	T
Eigen	Benign	-0.12
Eigen_PC	Benign	-0.40
FATHMM_MKL	Benign	0.056	N
LIST_S2	Benign	0.84	T
M_CAP	Benign	0.0021	T
MetaRNN	Uncertain	0.65	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Pathogenic	3.2	M
PhyloP100		1.3
PrimateAI	Benign	0.26	T
PROVEAN	Pathogenic	-6.2	D
REVEL	Benign	0.083
Sift	Benign	0.12	T
Sift4G	Uncertain	0.054	T
Polyphen		1.0	D
Vest4		0.37
MutPred		0.74		Loss of catalytic residue at P175 (P = 0.0099)
MVP		0.22
MPC		0.70
ClinPred		0.84	D
GERP RS		1.7
Varity_R		0.12
gMVP		0.23
Mutation Taster		=94/6	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs377233936; hg19: chr19-51628958;