Genetic Variant EFEMP2:p.His92Gln (chr11-65871248-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_016938.5(EFEMP2):c.276C>G(p.His92Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. H92H) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

EFEMP2
NM_016938.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.87

Publications

29 publications found

Variant links:

Genes affected

EFEMP2 (HGNC:3219): (EGF containing fibulin extracellular matrix protein 2) A large number of extracellular matrix proteins have been found to contain variations of the epidermal growth factor (EGF) domain and have been implicated in functions as diverse as blood coagulation, activation of complement and determination of cell fate during development. The protein encoded by this gene contains four EGF2 domains and six calcium-binding EGF2 domains. This gene is necessary for elastic fiber formation and connective tissue development. Defects in this gene are cause of an autosomal recessive cutis laxa syndrome. Alternatively spliced transcript variants have been identified for this gene. [provided by RefSeq, Jan 2011]

EFEMP2 Gene-Disease associations (from GenCC):

cutis laxa, autosomal recessive, type 1B
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P, PanelApp Australia, Ambry Genetics
familial thoracic aortic aneurysm and aortic dissection
Inheritance: AR Classification: MODERATE Submitted by: ClinGen
autosomal recessive cutis laxa type 1
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
lethal arteriopathy syndrome due to fibulin-4 deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
thoracic aortic aneurysm
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

EFEMP2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.12862739).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EFEMP2	NM_016938.5 link	c.276C>G	p.His92Gln	missense_variant	Exon 4 of 11	ENST00000307998.11	NP_058634.4
EFEMP2	NR_037718.2 link	n.401C>G		non_coding_transcript_exon_variant	Exon 4 of 12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EFEMP2	ENST00000307998.11 link	c.276C>G	p.His92Gln	missense_variant	Exon 4 of 11	1	NM_016938.5	ENSP00000309953.6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111998

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

8418

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.0032

BayesDel_noAF

Benign

-0.24

CADD

Benign

0.32

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.018

T;T;.;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.65

T;T;T;T

M_CAP

Benign

0.055

MetaRNN

Benign

0.13

T;T;T;T

MetaSVM

Benign

-0.43

MutationAssessor

Benign

1.1

.;L;.;.

PhyloP100

-1.9

PrimateAI

Uncertain

0.56

PROVEAN

Benign

-0.95

N;N;N;N

REVEL

Uncertain

0.47

Sift

Benign

0.41

T;T;T;T

Sift4G

Benign

0.27

T;T;.;T

Polyphen

0.92

P;B;.;.

Vest4

0.47

MutPred

0.27

Loss of catalytic residue at G93 (P = 0.1299);Loss of catalytic residue at G93 (P = 0.1299);Loss of catalytic residue at G93 (P = 0.1299);Loss of catalytic residue at G93 (P = 0.1299);

MVP

0.43

MPC

0.39

ClinPred

0.29

GERP RS

-2.5

Varity_R

0.090

gMVP

0.39

Mutation Taster

=96/4

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.070

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over