chr21-32453359-G-C

Position:

• chr21-32453359-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_058187.5(EVA1C):​c.208G>C​(p.Gly70Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: EVA1C NM_058187.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 9.07

Genes affected

EVA1C (HGNC:13239): (eva-1 homolog C) Enables heparin binding activity. Colocalizes with extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.805

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EVA1C	NM_058187.5	c.208G>C	p.Gly70Arg	missense_variant	2/8	ENST00000300255.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EVA1C	ENST00000300255.7	c.208G>C	p.Gly70Arg	missense_variant	2/8	1	NM_058187.5	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

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

Apr 18, 2023

The c.208G>C (p.G70R) alteration is located in exon 2 (coding exon 2) of the EVA1C gene. This alteration results from a G to C substitution at nucleotide position 208, causing the glycine (G) at amino acid position 70 to be replaced by an arginine (R). 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	0.65
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.040
CADD	Pathogenic	29
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.13	T;T;.
Eigen	Pathogenic	0.84
Eigen_PC	Pathogenic	0.79
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D;D;D
M_CAP	Benign	0.056	D
MetaRNN	Pathogenic	0.81	D;D;D
MetaSVM	Benign	-1.0	T
MutationAssessor	Pathogenic	3.0	M;.;M
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.70	T
PROVEAN	Pathogenic	-6.0	D;D;D
REVEL	Uncertain	0.51
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		1.0	D;D;.
Vest4		0.90
MutPred		0.57		Loss of sheet (P = 0.0054);Loss of sheet (P = 0.0054);Loss of sheet (P = 0.0054);
MVP		0.34
MPC		1.1
ClinPred		1.0	D
GERP RS		4.8
Varity_R		0.87
gMVP		0.74

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: chr21-33825667;