chr2-53787283-C-A

Position:

• chr2-53787283-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_015701.5(ERLEC1):​c.73C>A​(p.Leu25Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: ERLEC1 NM_015701.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.982

Genes affected

ERLEC1 (HGNC:25222): (endoplasmic reticulum lectin 1) This gene encodes a resident endoplasmic reticulum (ER) protein that functions in N-glycan recognition. This protein is thought to be involved in ER-associated degradation via its interaction with the membrane-associated ubiquitin ligase complex. It also functions as a regulator of multiple cellular stress-response pathways in a manner that promotes metastatic cell survival. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 21. [provided by RefSeq, Aug 2011]

GPR75-ASB3 (HGNC:40043): (GPR75-ASB3 readthrough) This locus represents naturally occurring read-through transcription between the neighboring GPR75 (G protein-coupled receptor 75) and ASB3 (ankyrin repeat and SOCS box containing 3) on chromosome 2. The transcript includes exons from both GPR75 and ASB3 and translation initiates in the 5' non-coding exon of GPR75. The resulting protein has a novel N-terminus but is otherwise identical to that encoded by ASB3.[provided by RefSeq, Feb 2011]

ASB3 (HGNC:16013): (ankyrin repeat and SOCS box containing 3) The protein encoded by this gene is a member of the ankyrin repeat and SOCS box-containing (ASB) family of proteins. They contain ankyrin repeat sequence and SOCS box domain. The SOCS box serves to couple suppressor of cytokine signalling (SOCS) proteins and their binding partners with the elongin B and C complex, possibly targeting them for degradation. Alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Jan 2011]

ERLEC1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.18071139).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ERLEC1	NM_015701.5	c.73C>A	p.Leu25Met	missense_variant	1/14	ENST00000185150.9	NP_056516.2
ERLEC1	NM_001127397.3	c.73C>A	p.Leu25Met	missense_variant	1/13		NP_001120869.1
ERLEC1	NM_001127398.3	c.73C>A	p.Leu25Met	missense_variant	1/13		NP_001120870.1
GPR75-ASB3	NM_001164165.2	c.102-21698G>T		intron_variant			NP_001157637.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ERLEC1	ENST00000185150.9	c.73C>A	p.Leu25Met	missense_variant	1/14	1	NM_015701.5	ENSP00000185150.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 05, 2024

The c.73C>A (p.L25M) alteration is located in exon 1 (coding exon 1) of the ERLEC1 gene. This alteration results from a C to A substitution at nucleotide position 73, causing the leucine (L) at amino acid position 25 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	21
DANN	Benign	0.92
DEOGEN2	Benign	0.042	.;T;.
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.45
FATHMM_MKL	Uncertain	0.79	D
LIST_S2	Benign	0.82	T;T;T
M_CAP	Benign	0.020	T
MetaRNN	Benign	0.18	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.34	N;N;N
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-0.58	N;N;N
REVEL	Benign	0.035
Sift	Uncertain	0.023	D;D;D
Sift4G	Benign	0.10	T;T;T
Polyphen		0.83, 0.52	.;P;P
Vest4		0.50
MutPred		0.36		Gain of catalytic residue at L25 (P = 0.0265);Gain of catalytic residue at L25 (P = 0.0265);Gain of catalytic residue at L25 (P = 0.0265);
MVP		0.26
MPC		0.20
ClinPred		0.39	T
GERP RS		0.64
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.12
gMVP		0.62

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-54014420;