chr21-32412927-T-C

Position:

• chr21-32412927-T-C

Variant summary

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

The NM_058187.5(EVA1C):​c.74T>C​(p.Val25Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000145 in 1,378,454 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000015 (0 hom.)
• Consequence: EVA1C NM_058187.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.48

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13133025).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EVA1C	NM_058187.5	c.74T>C	p.Val25Ala	missense_variant	1/8	ENST00000300255.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EVA1C	ENST00000300255.7	c.74T>C	p.Val25Ala	missense_variant	1/8	1	NM_058187.5	P3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000145 AC: 2 AN: 1378454 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 681068

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000186

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

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

Sep 14, 2023

The c.74T>C (p.V25A) alteration is located in exon 1 (coding exon 1) of the EVA1C gene. This alteration results from a T to C substitution at nucleotide position 74, causing the valine (V) at amino acid position 25 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	0.10
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.0061	T;T;.
Eigen	Benign	0.073
Eigen_PC	Benign	0.071
FATHMM_MKL	Benign	0.27	N
LIST_S2	Benign	0.60	T;T;T
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.13	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.6	L;.;L
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Uncertain	0.76	T
PROVEAN	Benign	-0.97	N;N;N
REVEL	Benign	0.022
Sift	Uncertain	0.029	D;D;D
Sift4G	Benign	0.090	T;T;T
Polyphen		0.64	P;P;.
Vest4		0.17
MutPred		0.22		Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);Loss of sheet (P = 0.0457);
MVP		0.35
MPC		0.37
ClinPred		0.48	T
GERP RS		2.9
Varity_R		0.089
gMVP		0.17

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: chr21-33785235;