4-109913376-A-C

Variant names:

Variant summary

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

The NM_001963.6(EGF):c.41A>C(p.Lys14Thr) 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 1,461,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

EGF
NM_001963.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.249

Publications

4 publications found

Variant links:

Genes affected

EGF (HGNC:3229): (epidermal growth factor) This gene encodes a member of the epidermal growth factor superfamily. The encoded preproprotein is proteolytically processed to generate the 53-amino acid epidermal growth factor peptide. This protein acts a potent mitogenic factor that plays an important role in the growth, proliferation and differentiation of numerous cell types. This protein acts by binding with high affinity to the cell surface receptor, epidermal growth factor receptor. Defects in this gene are the cause of hypomagnesemia type 4. Dysregulation of this gene has been associated with the growth and progression of certain cancers. Alternative splicing results in multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed. [provided by RefSeq, Jan 2016]

EGF Gene-Disease associations (from GenCC):

familial primary hypomagnesemia with normocalciuria and normocalcemia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
renal hypomagnesemia 4
Inheritance: AD, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

EGF links:

Genome browser will be placed here

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=0.15233237).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EGF	NM_001963.6 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 24	ENST00000265171.10	NP_001954.2	P01133-1
EGF	NM_001178130.3 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 23		NP_001171601.1	P01133-3
EGF	NM_001178131.3 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 23		NP_001171602.1	P01133-2
EGF	NM_001357021.2 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 20		NP_001343950.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
EGF	ENST00000265171.10 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 24	1	NM_001963.6	ENSP00000265171.5	P01133-1
EGF	ENST00000503392.1 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 23	1		ENSP00000421384.1	P01133-3
EGF	ENST00000509793.5 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 23	2		ENSP00000424316.1	P01133-2
EGF	ENST00000652245.1 link	c.41A>C	p.Lys14Thr	missense_variant	Exon 1 of 20			ENSP00000498337.1	A0A494C018

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251202

AF XY:

0.0000147

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461708

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727162

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.0000448

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111906

Other (OTH)

AF:

0.00

AC:

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Dec 17, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces lysine, which is basic and polar, with threonine, which is neutral and polar, at codon 14 of the EGF protein (p.Lys14Thr). This variant is present in population databases (no rsID available, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with EGF-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The threonine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.085

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.36

CADD

Benign

1.6

(source)

DANN

Benign

0.79

DEOGEN2

Benign

0.38

.;T;.

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.068

LIST_S2

Benign

0.73

T;T;T

M_CAP

Benign

0.063

MetaRNN

Benign

0.15

T;T;T

MetaSVM

Benign

-0.46

MutationAssessor

Benign

1.8

L;L;L

PhyloP100

0.25

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.1

N;N;N

REVEL

Benign

0.23

Sift

Benign

0.14

T;T;T

Sift4G

Benign

0.42

T;T;T

Polyphen

0.11

B;B;.

Vest4

0.15

MutPred

0.58

Loss of methylation at K14 (P = 0.006);Loss of methylation at K14 (P = 0.006);Loss of methylation at K14 (P = 0.006);

MVP

0.72

MPC

0.22

ClinPred

0.064

GERP RS

-5.0

PromoterAI

0.065

Neutral

(source)

Varity_R

0.045

gMVP

0.43

Mutation Taster

=89/11

polymorphism

(source)

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

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4-109913376-A-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over