3-129003987-A-G

Position:

• chr3-129003987-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001377500.1(EFCC1):​c.890A>G​(p.His297Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000743 in 1,346,464 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.4e-7 (0 hom.)
• Consequence: EFCC1 NM_001377500.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0370

Genes affected

EFCC1 (HGNC:25692): (EF-hand and coiled-coil domain containing 1) Predicted to enable calcium ion binding activity. Predicted to be active in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

CFAP92 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.037618935).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EFCC1	NM_001377500.1	c.890A>G	p.His297Arg	missense_variant	2/8	ENST00000683648.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EFCC1	ENST00000683648.1	c.890A>G	p.His297Arg	missense_variant	2/8		NM_001377500.1
EFCC1	ENST00000436022.2	c.890A>G	p.His297Arg	missense_variant	2/8	5		P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.43e-7 AC: 1 AN: 1346464 Hom.: 0 Cov.: 30 AF XY: 0.00000151 AC XY: 1 AN XY: 664438

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: 9.40e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.0000151

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

Jan 04, 2024

The c.890A>G (p.H297R) alteration is located in exon 2 (coding exon 2) of the EFCC1 gene. This alteration results from a A to G substitution at nucleotide position 890, causing the histidine (H) at amino acid position 297 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	Benign	0.067
BayesDel_addAF	Benign	-0.27	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	12
DANN	Benign	0.79
DEOGEN2	Benign	0.0017	T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.056	N
LIST_S2	Benign	0.39	T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.038	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.4	L
MutationTaster	Benign	1.0	N;N
PrimateAI	Uncertain	0.75	T
Sift4G	Benign	0.74	T
Polyphen		0.0	B
Vest4		0.047
MutPred		0.21		Gain of solvent accessibility (P = 0.1133);
MVP		0.014
ClinPred		0.015	T
GERP RS		-2.2
Varity_R		0.047
gMVP		0.087

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: rs1479686320; hg19: chr3-128722830;