10-48910253-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001378102.1(LRRC18):c.770G>A(p.Arg257His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000304 in 1,612,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

LRRC18
NM_001378102.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.362

Variant links:

Genes affected

LRRC18 (HGNC:23199): (leucine rich repeat containing 18) Predicted to be located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

LRRC18 links:

WDFY4 (HGNC:29323): (WDFY family member 4) Predicted to be involved in autophagy. Predicted to act upstream of or within with a positive effect on CD8-positive, alpha-beta T cell activation. Predicted to act upstream of or within antigen processing and presentation and cellular response to virus. Predicted to be located in early endosome and endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

WDFY4 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0618625).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LRRC18	NM_001378102.1 linkuse as main transcript	c.770G>A	p.Arg257His	missense_variant	4/4	ENST00000374160.8
WDFY4	NM_001394531.1 linkuse as main transcript	c.7586+8390C>T		intron_variant		ENST00000325239.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LRRC18	ENST00000374160.8 linkuse as main transcript	c.770G>A	p.Arg257His	missense_variant	4/4	1	NM_001378102.1	P1	Q8N456-1
WDFY4	ENST00000325239.12 linkuse as main transcript	c.7586+8390C>T		intron_variant		5	NM_001394531.1	P1	Q6ZS81-1
	ENST00000430438.1 linkuse as main transcript	n.173+22233G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151998

Hom.:

Cov.:

show subpopulations

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:

0.0000147

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000398

AC:

AN:

251262

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135814

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000139

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000322

AC:

AN:

1460116

Hom.:

Cov.:

AF XY:

0.0000344

AC XY:

AN XY:

726410

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000448

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000938

Gnomad4 NFE exome

AF:

0.0000342

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151998

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74236

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000658

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 14, 2023

The c.770G>A (p.R257H) alteration is located in exon 2 (coding exon 2) of the LRRC18 gene. This alteration results from a G to A substitution at nucleotide position 770, causing the arginine (R) at amino acid position 257 to be replaced by a histidine (H). 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

0.078

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.59

Cadd

Benign

Dann

Benign

0.46

DEOGEN2

Benign

0.016

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.010

LIST_S2

Benign

0.43

M_CAP

Benign

0.013

MetaRNN

Benign

0.062

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.24

PROVEAN

Benign

-0.50

REVEL

Benign

0.060

Sift

Pathogenic

0.0

Sift4G

Benign

0.33

Polyphen

0.0

Vest4

0.11

MVP

0.19

MPC

0.035

ClinPred

0.15

GERP RS

-5.8

Varity_R

0.049

gMVP

0.47

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over