1-74571694-G-A

Position:

• chr1-74571694-G-A

Variant summary

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

The NM_001002912.5(ERICH3):​c.4016C>T​(p.Ala1339Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000658 in 151,954 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: ERICH3 NM_001002912.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.71

Genes affected

ERICH3 (HGNC:25346): (glutamate rich 3)

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=0.16444331).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ERICH3	NM_001002912.5	c.4016C>T	p.Ala1339Val	missense_variant	14/15	ENST00000326665.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ERICH3	ENST00000326665.10	c.4016C>T	p.Ala1339Val	missense_variant	14/15	5	NM_001002912.5	P3
ERICH3	ENST00000433746.2	n.2158C>T		non_coding_transcript_exon_variant	2/3	1

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 151954 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

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

GnomAD4 exome Cov.: 87

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 151954 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74204

Gnomad4 AFR AF: 0.0000242

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

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

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

Oct 12, 2021

The c.4016C>T (p.A1339V) alteration is located in exon 14 (coding exon 14) of the ERICH3 gene. This alteration results from a C to T substitution at nucleotide position 4016, causing the alanine (A) at amino acid position 1339 to be replaced by a valine (V). 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	0.17
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.71
CADD	Benign	16
DANN	Uncertain	1.0
DEOGEN2	Benign	0.021	T
Eigen	Benign	-0.86
Eigen_PC	Benign	-0.92
FATHMM_MKL	Benign	0.063	N
LIST_S2	Benign	0.61	T
M_CAP	Benign	0.0082	T
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	1.8	L
MutationTaster	Benign	1.0	N
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.042
Sift	Benign	0.076	T
Sift4G	Benign	0.099	T
Polyphen		0.61	P
Vest4		0.30
MutPred		0.49		Loss of methylation at R1336 (P = 0.0926);
MVP		0.092
MPC		0.079
ClinPred		0.75	D
GERP RS		2.2
Varity_R		0.030
gMVP		0.022

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: rs1646950505; hg19: chr1-75037378;