2-53797585-C-T

Position:

• chr2-53797585-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2 PP5 BP4

The NM_015701.5(ERLEC1):​c.419C>T​(p.Thr140Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,459,386 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 Likely pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: ERLEC1 NM_015701.5 missense
• Clinical Significance: Likely pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 5.32

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 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 2-53797585-C-T is Pathogenic according to our data. Variant chr2-53797585-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 830378.Status of the report is no_assertion_criteria_provided, 0 stars.
• BP4: Computational evidence support a benign effect (MetaRNN=0.26774353). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ERLEC1	NM_015701.5	c.419C>T	p.Thr140Ile	missense_variant	4/14	ENST00000185150.9	NP_056516.2
ERLEC1	NM_001127397.3	c.419C>T	p.Thr140Ile	missense_variant	4/13		NP_001120869.1
ERLEC1	NM_001127398.3	c.419C>T	p.Thr140Ile	missense_variant	4/13		NP_001120870.1
GPR75-ASB3	NM_001164165.2	c.102-32000G>A		intron_variant			NP_001157637.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ERLEC1	ENST00000185150.9	c.419C>T	p.Thr140Ile	missense_variant	4/14	1	NM_015701.5	ENSP00000185150.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000401 AC: 1 AN: 249370 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 134752

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000546

Gnomad SAS 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: 2 AN: 1459386 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 725866

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000505

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

Bravo AF: 0.0000113

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Mandibular prognathia Pathogenic:1

Likely pathogenic, no assertion criteria provided

case-control

Dongguan Key Laboratory of Genetics and Infectious Diseases, Dongguan Institute of Pediatrics

Mar 30, 2020

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.36
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.032	.;T;.
Eigen	Uncertain	0.26
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.94	D;D;D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.27	T;T;T
MetaSVM	Benign	-0.80	T
MutationAssessor	Uncertain	2.8	M;M;M
PrimateAI	Uncertain	0.53	T
PROVEAN	Benign	-1.8	N;N;N
REVEL	Benign	0.083
Sift	Uncertain	0.0030	D;D;D
Sift4G	Uncertain	0.051	T;T;T
Polyphen		0.92, 0.48	.;P;P
Vest4		0.29
MutPred		0.30		Loss of ubiquitination at K143 (P = 0.0396);Loss of ubiquitination at K143 (P = 0.0396);Loss of ubiquitination at K143 (P = 0.0396);
MVP		0.57
MPC		0.64
ClinPred		0.83	D
GERP RS		4.6
Varity_R		0.25
gMVP		0.49

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: rs751933066; hg19: chr2-54024722;