2-232480205-T-G

Variant names:

• chr2-232480205-T-G
• rs765265903
• NM_004826.4:c.2276A>C

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_004826.4(ECEL1):​c.2276A>C​(p.His759Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,796 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: ECEL1 NM_004826.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.53
• Publications: 0 publications found

Genes affected

ECEL1 (HGNC:3147): (endothelin converting enzyme like 1) This gene encodes a member of the M13 family of endopeptidases. Members of this family are zinc-containing type II integral-membrane proteins that are important regulators of neuropeptide and peptide hormone activity. Mutations in this gene are associated with autosomal recessive distal arthrogryposis, type 5D. This gene has multiple pseudogenes on chromosome 2. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Mar 2014]

ECEL1 Gene-Disease associations (from GenCC):

• distal arthrogryposis type 5D

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.824

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004826.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ECEL1	NM_004826.4	MANE Select	c.2276A>C	p.His759Pro	missense	Exon 18 of 18	NP_004817.2	A0A6F7YIA8
	ECEL1	NM_001290787.2		c.2270A>C	p.His757Pro	missense	Exon 18 of 18	NP_001277716.1	O95672-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ECEL1	ENST00000304546.6	TSL:1 MANE Select	c.2276A>C	p.His759Pro	missense	Exon 18 of 18	ENSP00000302051.1	O95672-1
	ECEL1	ENST00000409941.1	TSL:1	c.2270A>C	p.His757Pro	missense	Exon 17 of 17	ENSP00000386333.1	O95672-2
	ECEL1	ENST00000862796.1		c.2276A>C	p.His759Pro	missense	Exon 18 of 18	ENSP00000532855.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251088 AF XY: 0.0000147

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 FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461796 Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4 AN XY: 727214

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000580 AC: 5 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53368

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111988

Other (OTH) AF: 0.0000166 AC: 1 AN: 60394

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	0.12
CADD	Pathogenic	32
DANN	Benign	0.97
DEOGEN2	Uncertain	0.63	D
Eigen	Uncertain	0.67
Eigen_PC	Uncertain	0.65
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.95	D
M_CAP	Pathogenic	0.29	D
MetaRNN	Pathogenic	0.82	D
MetaSVM	Uncertain	0.42	D
MutationAssessor	Benign	1.4	L
PhyloP100		7.5
PrimateAI	Uncertain	0.59	T
PROVEAN	Uncertain	-4.2	D
REVEL	Pathogenic	0.80
Sift	Benign	0.035	D
Sift4G	Benign	0.20	T
Polyphen		1.0	D
Vest4		0.66
MutPred		0.50		Gain of catalytic residue at H759 (P = 0.0118)
MVP		0.90
MPC		0.76
ClinPred		0.80	D
GERP RS		5.2
Varity_R		0.92
gMVP		0.82
Mutation Taster		=27/73	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.12		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: rs765265903; hg19: chr2-233344915;