Genetic Variant ERC1:p.Pro22Ser (chr12-1027967-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_178040.4(ERC1):c.64C>T(p.Pro22Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000929 in 1,613,962 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

ERC1
NM_178040.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.84

Variant links:

Genes affected

ERC1 (HGNC:17072): (ELKS/RAB6-interacting/CAST family member 1) The protein encoded by this gene is a member of a family of RIM-binding proteins. RIMs are active zone proteins that regulate neurotransmitter release. This gene has been found fused to the receptor-type tyrosine kinase gene RET by gene rearrangement due to the translocation t(10;12)(q11;p13) in thyroid papillary carcinoma. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

ERC1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ERC1	NM_178040.4 link	c.64C>T	p.Pro22Ser	missense_variant	Exon 2 of 19	ENST00000360905.9	NP_829884.1	Q8IUD2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ERC1	ENST00000360905.9 link	c.64C>T	p.Pro22Ser	missense_variant	Exon 2 of 19	1	NM_178040.4	ENSP00000354158.3		Q8IUD2-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251324

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135822

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000958

AC:

AN:

1461788

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727192

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000191

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000809

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152174

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 12, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.64C>T (p.P22S) alteration is located in exon 1 (coding exon 1) of the ERC1 gene. This alteration results from a C to T substitution at nucleotide position 64, causing the proline (P) at amino acid position 22 to be replaced by a serine (S). 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

Pathogenic

0.74

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.60

.;.;.;D;.;.;.;D;T

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Pathogenic

1.0

M_CAP

Uncertain

0.13

MetaRNN

Uncertain

0.48

T;T;T;T;T;T;T;T;T

MetaSVM

Uncertain

0.32

MutationAssessor

Benign

1.1

.;L;.;L;.;L;L;L;.

PrimateAI

Pathogenic

0.80

PROVEAN

Uncertain

-2.8

.;D;D;D;.;.;D;.;D

REVEL

Uncertain

0.49

Sift

Benign

0.083

.;T;T;T;.;.;T;.;T

Sift4G

Pathogenic

0.0

D;T;T;T;D;D;T;T;T

Polyphen

0.24, 0.98

.;B;.;D;.;.;B;D;.

Vest4

0.57, 0.60, 0.57, 0.63, 0.59, 0.55

MutPred

0.30

Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);Gain of phosphorylation at P22 (P = 6e-04);

MVP

0.83

MPC

1.1

ClinPred

0.73

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.18

gMVP

0.59

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over