rs1052738578

Variant names:

• chr4-109913108-G-C
• rs1052738578
• NM_001963.6:c.-228G>C

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_Strong BS2

The NM_001963.6(EGF):​c.-228G>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000848 in 495,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.00011 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000076 (0 hom.)
• Consequence: EGF NM_001963.6 5_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.538
• Publications: 0 publications found

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)

ACMG classification

Our verdict: Benign. The variant received -8 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).
• BS2: High AC in GnomAd4 at 16 AD,Unknown gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EGF	NM_001963.6	c.-228G>C		5_prime_UTR_variant	Exon 1 of 24	ENST00000265171.10	NP_001954.2
EGF	NM_001178130.3	c.-228G>C		5_prime_UTR_variant	Exon 1 of 23		NP_001171601.1
EGF	NM_001178131.3	c.-228G>C		5_prime_UTR_variant	Exon 1 of 23		NP_001171602.1
EGF	NM_001357021.2	c.-228G>C		5_prime_UTR_variant	Exon 1 of 20		NP_001343950.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EGF	ENST00000265171.10	c.-228G>C		5_prime_UTR_variant	Exon 1 of 24	1	NM_001963.6	ENSP00000265171.5
EGF	ENST00000509793.5	c.-228G>C		5_prime_UTR_variant	Exon 1 of 23	2		ENSP00000424316.1
EGF	ENST00000652245.1	c.-228G>C		5_prime_UTR_variant	Exon 1 of 20			ENSP00000498337.1
EGF	ENST00000503392.1	c.-228G>C		upstream_gene_variant		1		ENSP00000421384.1

Frequencies

GnomAD3 genomes AF: 0.000105 AC: 16 AN: 152156 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

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: 0.000118

Gnomad OTH AF: 0.000478

GnomAD4 exome AF: 0.0000757 AC: 26 AN: 343272 Hom.: 0 Cov.: 4 AF XY: 0.0000434 AC XY: 8 AN XY: 184406

African (AFR) AF: 0.00 AC: 0 AN: 9790

American (AMR) AF: 0.000263 AC: 4 AN: 15196

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 9842

East Asian (EAS) AF: 0.00 AC: 0 AN: 19920

South Asian (SAS) AF: 0.00 AC: 0 AN: 44060

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 17680

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 1596

European-Non Finnish (NFE) AF: 0.0000824 AC: 17 AN: 206224

Other (OTH) AF: 0.000264 AC: 5 AN: 18964

GnomAD4 genome AF: 0.000105 AC: 16 AN: 152156 Hom.: 0 Cov.: 32 AF XY: 0.0000807 AC XY: 6 AN XY: 74336

African (AFR) AF: 0.0000724 AC: 3 AN: 41442

American (AMR) AF: 0.000262 AC: 4 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5202

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10596

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.000118 AC: 8 AN: 68024

Other (OTH) AF: 0.000478 AC: 1 AN: 2090

Alfa AF: 0.000142 Hom.: 0

Bravo AF: 0.000144

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Renal hypomagnesemia 4 Uncertain:1

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	14
DANN	Benign	0.78
PhyloP100		0.54
PromoterAI		0.021	Neutral

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

Other links and lift over

dbSNP: rs1052738578; hg19: chr4-110834264;