Variant 19-50517795-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001080457.2(LRRC4B):c.1918A>G(p.Ser640Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000724 in 1,381,664 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. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

LRRC4B
NM_001080457.2 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.72

Variant links:

Genes affected

LRRC4B (HGNC:25042): (leucine rich repeat containing 4B) Predicted to enable signaling receptor binding activity. Predicted to be involved in regulation of synapse assembly and synaptic membrane adhesion. Predicted to be located in cerebellar mossy fiber and presynaptic membrane. Predicted to be active in glutamatergic synapse and plasma membrane. Predicted to be integral component of postsynaptic density membrane. [provided by Alliance of Genome Resources, Apr 2022]

LRRC4B links:

LOC124904747 (HGNC:):

LOC124904747 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05666983).

BP6

Variant 19-50517795-T-C is Benign according to our data. Variant chr19-50517795-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 2534255.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRRC4B	NM_001080457.2 linkuse as main transcript	c.1918A>G	p.Ser640Gly	missense_variant	3/3	ENST00000652263.1	NP_001073926.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
LRRC4B	ENST00000652263.1 linkuse as main transcript	c.1918A>G	p.Ser640Gly	missense_variant	3/3		NM_001080457.2	ENSP00000498662.1	Q9NT99
LRRC4B	ENST00000389201.7 linkuse as main transcript	c.1918A>G	p.Ser640Gly	missense_variant	3/3	2		ENSP00000373853.3	Q9NT99
LRRC4B	ENST00000599957.5 linkuse as main transcript	c.1918A>G	p.Ser640Gly	missense_variant	3/3	3		ENSP00000471502.1	Q9NT99

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.24e-7

AC:

AN:

1381664

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

683068

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.27e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 07, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.052

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

6.2

DANN

Benign

0.58

DEOGEN2

Benign

0.0029

T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.014

LIST_S2

Benign

0.28

.;T

M_CAP

Uncertain

0.094

MetaRNN

Benign

0.057

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

N;N

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

0.14

.;N

REVEL

Benign

0.0090

Sift

Benign

0.85

.;T

Sift4G

Benign

0.38

T;T

Polyphen

0.0

B;B

Vest4

0.044

MutPred

0.26

Loss of glycosylation at S640 (P = 5e-04);Loss of glycosylation at S640 (P = 5e-04);

MVP

0.21

MPC

0.98

ClinPred

0.073

GERP RS

1.8

Varity_R

0.042

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over