Genetic Variant ERGIC1:p.Asp102Ala (chr5-172914768-A-C) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001031711.3(ERGIC1):c.305A>C(p.Asp102Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,870 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D102N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ERGIC1
NM_001031711.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.10

Publications

0 publications found

Variant links:

Genes affected

ERGIC1 (HGNC:29205): (endoplasmic reticulum-golgi intermediate compartment 1) This gene encodes a cycling membrane protein which is an endoplasmic reticulum-golgi intermediate compartment (ERGIC) protein which interacts with other members of this protein family to increase their turnover. [provided by RefSeq, Jul 2008]

ERGIC1 Gene-Disease associations (from GenCC):

arthrogryposis multiplex congenita 2, neurogenic type
Inheritance: AR Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

ERGIC1 links:

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ACMG classification

Classification was made for transcript

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, 0.826

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ERGIC1	NM_001031711.3 link	c.305A>C	p.Asp102Ala	missense_variant	Exon 5 of 10	ENST00000393784.8	NP_001026881.1	Q969X5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ERGIC1	ENST00000393784.8 link	c.305A>C	p.Asp102Ala	missense_variant	Exon 5 of 10	1	NM_001031711.3	ENSP00000377374.3		Q969X5-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727232

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53396

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112012

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 16, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.305A>C (p.D102A) alteration is located in exon 5 (coding exon 5) of the ERGIC1 gene. This alteration results from a A to C substitution at nucleotide position 305, causing the aspartic acid (D) at amino acid position 102 to be replaced by an alanine (A). 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

0.30

BayesDel_addAF

Uncertain

0.076

BayesDel_noAF

Benign

-0.13

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.21

T;T;T;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

D;D;D;D

M_CAP

Benign

0.0085

MetaRNN

Pathogenic

0.83

D;D;D;D

MetaSVM

Benign

-0.79

MutationAssessor

Benign

1.4

L;.;.;.

PhyloP100

9.1

PrimateAI

Uncertain

0.75

PROVEAN

Uncertain

-2.9

D;D;D;D

REVEL

Uncertain

0.58

Sift

Benign

0.075

T;T;D;D

Sift4G

Uncertain

0.052

T;T;D;D

Polyphen

0.19

B;.;.;D

Vest4

0.65

MutPred

0.78

Loss of helix (P = 0.0444);Loss of helix (P = 0.0444);.;.;

MVP

0.20

MPC

1.2

ClinPred

0.91

GERP RS

5.4

Varity_R

0.25

gMVP

0.85

Mutation Taster

=37/63

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over