chr19-856014-C-G

Position:

• chr19-856014-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 6P and 4B. PM1 PP3_Strong BS2

The NM_001972.4(ELANE):​c.654C>G​(p.Phe218Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,198 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000012 (0 hom.)
• Consequence: ELANE NM_001972.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.205

Genes affected

ELANE (HGNC:3309): (elastase, neutrophil expressed) Elastases form a subfamily of serine proteases that hydrolyze many proteins in addition to elastin. Humans have six elastase genes which encode structurally similar proteins. The encoded preproprotein is proteolytically processed to generate the active protease. Following activation, this protease hydrolyzes proteins within specialized neutrophil lysosomes, called azurophil granules, as well as proteins of the extracellular matrix. The enzyme may play a role in degenerative and inflammatory diseases through proteolysis of collagen-IV and elastin. This protein also degrades the outer membrane protein A (OmpA) of E. coli as well as the virulence factors of such bacteria as Shigella, Salmonella and Yersinia. Mutations in this gene are associated with cyclic neutropenia and severe congenital neutropenia (SCN). This gene is present in a gene cluster on chromosome 19. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM1: In a domain Peptidase S1 (size 217) in uniprot entity ELNE_HUMAN there are 55 pathogenic changes around while only 2 benign (96%) in NM_001972.4
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.967
• BS2: High AC in GnomAdExome4 at 17 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ELANE	NM_001972.4	c.654C>G	p.Phe218Leu	missense_variant	5/5	ENST00000263621.2	NP_001963.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ELANE	ENST00000263621.2	c.654C>G	p.Phe218Leu	missense_variant	5/5	1	NM_001972.4	ENSP00000263621.1
ELANE	ENST00000590230.5	c.654C>G	p.Phe218Leu	missense_variant	6/6	5		ENSP00000466090.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000399 AC: 1 AN: 250840 Hom.: 0 AF XY: 0.00000736 AC XY: 1 AN XY: 135816

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: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000116 AC: 17 AN: 1461198 Hom.: 0 Cov.: 33 AF XY: 0.00000688 AC XY: 5 AN XY: 726904

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: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000144

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.11
CADD	Benign	19
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.85	D;D
Eigen	Uncertain	0.22
Eigen_PC	Benign	0.061
FATHMM_MKL	Benign	0.47	N
LIST_S2	Benign	0.71	.;T
M_CAP	Pathogenic	0.70	D
MetaRNN	Pathogenic	0.97	D;D
MetaSVM	Pathogenic	0.83	D
MutationAssessor	Pathogenic	2.9	M;M
PrimateAI	Uncertain	0.63	T
PROVEAN	Pathogenic	-4.8	.;D
REVEL	Pathogenic	0.71
Sift	Benign	0.044	.;D
Sift4G	Uncertain	0.011	D;D
Polyphen		1.0	D;D
Vest4		0.60
MutPred		0.81		Loss of catalytic residue at F218 (P = 0.0429);Loss of catalytic residue at F218 (P = 0.0429);
MVP		0.95
MPC		1.4
ClinPred		0.89	D
GERP RS		2.3
Varity_R		0.79
gMVP		0.87

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

Other links and lift over

dbSNP: rs148492780; hg19: chr19-856014;