19-54636772-A-T

Variant names:

• chr19-54636772-A-T
• rs746914203
• NM_001081637.3:c.1853A>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001081637.3(LILRB1):​c.1853A>T​(p.Gln618Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000698 in 1,431,670 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. 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. Q618R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 28)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: LILRB1 NM_001081637.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.654
• Publications: 0 publications found

Genes affected

LILRB1 (HGNC:6605): (leukocyte immunoglobulin like receptor B1) This gene is a member of the leukocyte immunoglobulin-like receptor (LIR) family, which is found in a gene cluster at chromosomal region 19q13.4. The encoded protein belongs to the subfamily B class of LIR receptors which contain two or four extracellular immunoglobulin domains, a transmembrane domain, and two to four cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). The receptor is expressed on immune cells where it binds to MHC class I molecules on antigen-presenting cells and transduces a negative signal that inhibits stimulation of an immune response. It is thought to control inflammatory responses and cytotoxicity to help focus the immune response and limit autoreactivity. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

LILRB1-AS1 (HGNC:53114): (LILRB1 antisense RNA 1)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20086926).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001081637.3. 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
	LILRB1	NM_001081637.3	MANE Select	c.1853A>T	p.Gln618Leu	missense	Exon 15 of 15	NP_001075106.2	A0A087WSV6
	LILRB1	NM_001388358.1		c.1853A>T	p.Gln618Leu	missense	Exon 16 of 16	NP_001375287.1	A0A087WSV6
	LILRB1	NM_001081638.4		c.1850A>T	p.Gln617Leu	missense	Exon 15 of 15	NP_001075107.2	A0A087WSX8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LILRB1	ENST00000324602.12	TSL:5 MANE Select	c.1853A>T	p.Gln618Leu	missense	Exon 15 of 15	ENSP00000315997.7	A0A087WSV6
	LILRB1	ENST00000396315.5	TSL:1	c.1853A>T	p.Gln618Leu	missense	Exon 14 of 14	ENSP00000379608.1	A0A087WSV6
	LILRB1	ENST00000396327.7	TSL:1	c.1850A>T	p.Gln617Leu	missense	Exon 15 of 15	ENSP00000379618.3	A0A087WSX8

Frequencies

GnomAD3 genomes Cov.: 28

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251466 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.98e-7 AC: 1 AN: 1431670 Hom.: 0 Cov.: 41 AF XY: 0.00000140 AC XY: 1 AN XY: 712186

African (AFR) AF: 0.00 AC: 0 AN: 32516

American (AMR) AF: 0.0000229 AC: 1 AN: 43682

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24974

East Asian (EAS) AF: 0.00 AC: 0 AN: 36868

South Asian (SAS) AF: 0.00 AC: 0 AN: 86052

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50972

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5604

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1092740

Other (OTH) AF: 0.00 AC: 0 AN: 58262

GnomAD4 genome Cov.: 28

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.096	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	23
DANN	Uncertain	0.98
DEOGEN2	Benign	0.17	T
Eigen	Benign	-0.018
Eigen_PC	Benign	-0.28
FATHMM_MKL	Benign	0.20	N
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.00092	T
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-1.1	T
PhyloP100		0.65
PrimateAI	Benign	0.35	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.11
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.25
MutPred		0.39		Loss of sheet (P = 0.1158)
MVP		0.33
MPC		0.096
ClinPred		0.46	T
GERP RS		1.8
gMVP		0.13
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs746914203; hg19: chr19-55148223;