Variant 2-77518997-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM1BP4_ModerateBS2

The NM_001134745.3(LRRTM4):c.872A>G(p.Asn291Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000347 in 1,611,728 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

LRRTM4
NM_001134745.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.17

Variant links:

Genes affected

LRRTM4 (HGNC:19411): (leucine rich repeat transmembrane neuronal 4) Predicted to enable heparan sulfate proteoglycan binding activity. Predicted to be involved in regulation of synapse assembly. Predicted to act upstream of or within AMPA glutamate receptor clustering; positive regulation of synapse assembly; and regulation of presynaptic membrane organization. Predicted to be located in postsynaptic membrane. Predicted to be part of AMPA glutamate receptor complex. Predicted to be active in extracellular matrix; extracellular space; and glutamatergic synapse. Predicted to be integral component of postsynaptic density membrane. [provided by Alliance of Genome Resources, Apr 2022]

LRRTM4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM1

In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity LRRT4_HUMAN

BP4

Computational evidence support a benign effect (MetaRNN=0.11468211).

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRRTM4	NM_001134745.3 link	c.872A>G	p.Asn291Ser	missense_variant	3/4	ENST00000409884.6	NP_001128217.1	Q86VH4-1Q6ZT31

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRRTM4	ENST00000409884.6 link	c.872A>G	p.Asn291Ser	missense_variant	3/4	1	NM_001134745.3	ENSP00000387297.1		Q86VH4-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000326

AC:

AN:

245118

Hom.:

AF XY:

0.0000150

AC XY:

AN XY:

132926

show subpopulations

Gnomad AFR exome

AF:

0.000201

Gnomad AMR exome

AF:

0.00

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:

0.0000361

Gnomad OTH exome

AF:

0.000168

GnomAD4 exome

AF:

0.0000329

AC:

AN:

1459648

Hom.:

Cov.:

AF XY:

0.0000331

AC XY:

AN XY:

725910

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000387

Gnomad4 OTH exome

AF:

0.0000332

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152080

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74286

show subpopulations

Gnomad4 AFR

AF:

0.0000724

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:

0.0000735

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000495

Hom.:

Bravo

AF:

0.0000567

ExAC

AF:

0.0000249

AC:

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

Oct 13, 2021

The c.872A>G (p.N291S) alteration is located in exon 3 (coding exon 2) of the LRRTM4 gene. This alteration results from a A to G substitution at nucleotide position 872, causing the asparagine (N) at amino acid position 291 to be replaced by a serine (S). 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

0.077

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.69

CADD

Benign

DANN

Benign

0.33

DEOGEN2

Benign

0.021

T;T;T;.;T

Eigen

Benign

-0.14

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.92

D;.;D;D;D

M_CAP

Benign

0.016

MetaRNN

Benign

0.11

T;T;T;T;T

MetaSVM

Benign

-0.89

MutationAssessor

Benign

-1.0

.;N;N;N;.

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.68

N;N;N;N;N

REVEL

Benign

0.16

Sift

Benign

0.78

T;T;T;T;T

Sift4G

Benign

0.60

T;T;T;T;T

Polyphen

0.45, 0.40

.;B;B;B;B

Vest4

0.56

MutPred

0.22

.;Gain of disorder (P = 0.0886);Gain of disorder (P = 0.0886);Gain of disorder (P = 0.0886);.;

MVP

0.11

MPC

1.3

ClinPred

0.11

GERP RS

5.8

Varity_R

0.13

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

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