Genetic Variant ELFN2:p.Gln745Lys (chr22-37373302-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_052906.5(ELFN2):c.2233C>A(p.Gln745Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00011 in 1,613,642 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q745R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

ELFN2
NM_052906.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.55

Variant links:

Genes affected

ELFN2 (HGNC:29396): (extracellular leucine rich repeat and fibronectin type III domain containing 2) Predicted to enable protein phosphatase inhibitor activity. Predicted to be involved in negative regulation of catalytic activity. Located in extracellular space. [provided by Alliance of Genome Resources, Apr 2022]

ELFN2 links:

ELFN2 (HGNC:):

ELFN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ELFN2	NM_052906.5 link	c.2233C>A	p.Gln745Lys	missense_variant	Exon 3 of 3	ENST00000402918.7	NP_443138.2	Q5R3F8
ELFN2	NR_110512.2 link	n.183-30599C>A		intron_variant	Intron 1 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ELFN2	ENST00000402918.7 link	c.2233C>A	p.Gln745Lys	missense_variant	Exon 3 of 3	4	NM_052906.5	ENSP00000385277.1	Q5R3F8
ELFN2	ENST00000430883.5 link	n.434+11548C>A		intron_variant	Intron 1 of 2	2
ELFN2	ENST00000452946.1 link	n.149-30599C>A		intron_variant	Intron 1 of 2	4

Frequencies

GnomAD3 genomes

AF:

0.0000525

AC:

AN:

152262

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000878

AC:

AN:

250458

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135646

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.000186

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000116

AC:

170

AN:

1461380

Hom.:

Cov.:

AF XY:

0.000111

AC XY:

AN XY:

727000

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:

0.000150

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152262

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74386

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:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000604

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.00

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

Dec 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2233C>A (p.Q745K) alteration is located in exon 3 (coding exon 1) of the ELFN2 gene. This alteration results from a C to A substitution at nucleotide position 2233, causing the glutamine (Q) at amino acid position 745 to be replaced by a lysine (K). 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

Pathogenic

0.66

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.13

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

T;T

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.74

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.97

.;D

M_CAP

Benign

0.051

MetaRNN

Uncertain

0.45

T;T

MetaSVM

Uncertain

-0.083

MutationAssessor

Uncertain

2.4

M;M

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-2.1

N;.

REVEL

Benign

0.26

Sift

Uncertain

0.0010

D;.

Sift4G

Uncertain

0.011

D;D

Polyphen

1.0

D;D

Vest4

0.54

MVP

0.70

MPC

1.8

ClinPred

0.25

GERP RS

4.6

Varity_R

0.63

gMVP

0.56

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