Genetic Variant LRCH3:p.Arg86Trp (chr3-197791534-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001365715.1(LRCH3):c.256C>T(p.Arg86Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000291 in 1,581,482 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

LRCH3
NM_001365715.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.28

Variant links:

Genes affected

LRCH3 (HGNC:28637): (leucine rich repeats and calponin homology domain containing 3) Involved in septin cytoskeleton organization. Located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

LRCH3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.276644).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRCH3	NM_001365715.1 link	c.256C>T	p.Arg86Trp	missense_variant	Exon 1 of 21	ENST00000425562.7	NP_001352644.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRCH3	ENST00000425562.7 link	c.256C>T	p.Arg86Trp	missense_variant	Exon 1 of 21	5	NM_001365715.1	ENSP00000393579.2		Q96II8-1

Frequencies

GnomAD3 genomes

AF:

0.0000855

AC:

AN:

152052

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000422

AC:

AN:

189770

Hom.:

AF XY:

0.0000377

AC XY:

AN XY:

105998

show subpopulations

Gnomad AFR exome

AF:

0.000125

Gnomad AMR exome

AF:

0.0000695

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000601

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000231

AC:

AN:

1429430

Hom.:

Cov.:

AF XY:

0.0000239

AC XY:

AN XY:

709908

show subpopulations

Gnomad4 AFR exome

AF:

0.000261

Gnomad4 AMR exome

AF:

0.0000490

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000272

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000191

Gnomad4 OTH exome

AF:

0.0000169

GnomAD4 genome

AF:

0.0000855

AC:

AN:

152052

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74310

show subpopulations

Gnomad4 AFR

AF:

0.000193

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000945

ExAC

AF:

0.0000340

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.256C>T (p.R86W) alteration is located in exon 1 (coding exon 1) of the LRCH3 gene. This alteration results from a C to T substitution at nucleotide position 256, causing the arginine (R) at amino acid position 86 to be replaced by a tryptophan (W). 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

0.13

BayesDel_addAF

Benign

-0.042

BayesDel_noAF

Benign

-0.30

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

.;.;.;T;.;T

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Uncertain

0.87

LIST_S2

Pathogenic

0.98

.;D;D;D;D;D

M_CAP

Benign

0.067

MetaRNN

Benign

0.28

T;T;T;T;T;T

MetaSVM

Benign

-0.80

MutationAssessor

Benign

1.2

L;L;L;.;L;L

PrimateAI

Uncertain

0.70

PROVEAN

Uncertain

-4.1

D;.;D;D;D;D

REVEL

Benign

0.21

Sift

Benign

0.036

D;.;D;D;D;D

Sift4G

Uncertain

0.0030

D;.;D;D;D;D

Polyphen

1.0

D;D;.;D;D;.

Vest4

0.61

MVP

0.64

MPC

0.40

ClinPred

0.62

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.39

gMVP

0.59

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

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