dbSNP rs775968133: LRFN2:p.Arg617Cys (chr6-40392464-G-A) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020737.3(LRFN2):c.1849C>T(p.Arg617Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000159 in 1,568,240 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. 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. R617G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

LRFN2
NM_020737.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.30

Variant links:

Genes affected

LRFN2 (HGNC:21226): (leucine rich repeat and fibronectin type III domain containing 2) Predicted to be involved in modulation of chemical synaptic transmission and regulation of postsynapse organization. Predicted to be located in plasma membrane. Predicted to be active in Schaffer collateral - CA1 synapse and cell surface. Predicted to be integral component of postsynaptic density membrane. [provided by Alliance of Genome Resources, Apr 2022]

LRFN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.2575294).

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRFN2	NM_020737.3 link	c.1849C>T	p.Arg617Cys	missense_variant	Exon 3 of 3	ENST00000338305.7	NP_065788.1	Q9ULH4
LRFN2	XM_011514762.3 link	c.1849C>T	p.Arg617Cys	missense_variant	Exon 3 of 3		XP_011513064.1	Q9ULH4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRFN2	ENST00000338305.7 link	c.1849C>T	p.Arg617Cys	missense_variant	Exon 3 of 3	1	NM_020737.3	ENSP00000345985.6		Q9ULH4
LRFN2	ENST00000700335.1 link	c.1849C>T	p.Arg617Cys	missense_variant	Exon 4 of 4			ENSP00000514953.1		A0A8V8TQ63

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152254

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.00

GnomAD3 exomes

AF:

0.0000302

AC:

AN:

165794

Hom.:

AF XY:

0.0000220

AC XY:

AN XY:

90758

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000375

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:

0.0000464

Gnomad OTH exome

AF:

0.000221

GnomAD4 exome

AF:

0.0000134

AC:

AN:

1415986

Hom.:

Cov.:

AF XY:

0.00000999

AC XY:

AN XY:

700832

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000263

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:

0.0000156

Gnomad4 OTH exome

AF:

0.0000171

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000262

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:

0.00

Alfa

AF:

0.0000569

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.0000346

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.36

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.065

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.19

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.77

M_CAP

Benign

0.061

MetaRNN

Benign

0.26

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.34

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-0.87

REVEL

Benign

0.16

Sift

Uncertain

0.0090

Sift4G

Uncertain

0.053

Polyphen

0.97

Vest4

0.32

MutPred

0.34

Loss of helix (P = 0.0138);

MVP

0.71

MPC

0.54

ClinPred

0.18

GERP RS

3.8

Varity_R

0.12

gMVP

0.062

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over