chr19-54337594-T-C

Position:

• chr19-54337594-T-C

Variant summary

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

The NM_012276.5(LILRA4):​c.758A>G​(p.Tyr253Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: LILRA4 NM_012276.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.119

Genes affected

LILRA4 (HGNC:15503): (leukocyte immunoglobulin like receptor A4) This gene encodes an immunoglobulin-like cell surface protein that is expressed predominantly on plasmacytoid dendritic cells (PDCs) and modulates the function of these cells in the immune response. Expression of this gene is downregulated by interleukin 3 (IL3). This gene is one of a cluster of highly related genes located at chromosomal region 19q13.4. [provided by RefSeq, Jan 2015]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LILRA4	NM_012276.5	c.758A>G	p.Tyr253Cys	missense_variant	5/8	ENST00000291759.5	NP_036408.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LILRA4	ENST00000291759.5	c.758A>G	p.Tyr253Cys	missense_variant	5/8	2	NM_012276.5	ENSP00000291759	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 96

GnomAD4 genome Cov.: 33

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

May 18, 2023

The c.758A>G (p.Y253C) alteration is located in exon 5 (coding exon 5) of the LILRA4 gene. This alteration results from a A to G substitution at nucleotide position 758, causing the tyrosine (Y) at amino acid position 253 to be replaced by a cysteine (C). 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	Uncertain	0.53
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	13
DANN	Benign	0.97
Eigen	Benign	-0.45
Eigen_PC	Benign	-0.66
FATHMM_MKL	Benign	0.014	N
M_CAP	Benign	0.0026	T
MetaRNN	Uncertain	0.64	D
MetaSVM	Benign	-1.1	T
MutationTaster	Benign	0.99	N
PrimateAI	Uncertain	0.50	T
PROVEAN	Pathogenic	-4.8	D
REVEL	Benign	0.14
Sift	Benign	0.037	D
Sift4G	Uncertain	0.017	D
Vest4		0.49
MutPred		0.76		Loss of sheet (P = 0.0817);
MVP		0.072
MPC		0.13
ClinPred		0.71	D
GERP RS		1.5
gMVP		0.36

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-54848865; COSMIC: COSV52490678; COSMIC: COSV52490678;