chr1-63323855-G-C

Position:

• chr1-63323855-G-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4 BS2

The NM_012183.3(FOXD3):​c.797G>C​(p.Gly266Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000153 in 1,376,250 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 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: 0.000015 (0 hom.)
• Consequence: FOXD3 NM_012183.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.843

Genes affected

FOXD3 (HGNC:3804): (forkhead box D3) This gene belongs to the forkhead family of transcription factors which is characterized by a distinct forkhead domain. Mutations in this gene cause autoimmune susceptibility 1. [provided by RefSeq, Nov 2008]

FOXD3-AS1 (HGNC:40241): (FOXD3 antisense RNA 1)

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.26459822).
• BS2: High AC in GnomAdExome4 at 21 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FOXD3	NM_012183.3	c.797G>C	p.Gly266Ala	missense_variant	1/1	ENST00000371116.4
FOXD3-AS1	NR_121637.1	n.87+500C>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FOXD3	ENST00000371116.4	c.797G>C	p.Gly266Ala	missense_variant	1/1		NM_012183.3	P1
FOXD3-AS1	ENST00000427268.1	n.87+500C>G		intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000153 AC: 21 AN: 1376250 Hom.: 0 Cov.: 33 AF XY: 0.0000176 AC XY: 12 AN XY: 682494

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: 0.0000230

Gnomad4 NFE exome AF: 0.0000186

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000934 AC: 1

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

Aug 09, 2021

The c.797G>C (p.G266A) alteration is located in exon 1 (coding exon 1) of the FOXD3 gene. This alteration results from a G to C substitution at nucleotide position 797, causing the glycine (G) at amino acid position 266 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	0.098
BayesDel_addAF	Benign	0.0018	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	17
DANN	Benign	0.89
DEOGEN2	Benign	0.35	T
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.60
FATHMM_MKL	Benign	0.10	N
LIST_S2	Benign	0.65	T
M_CAP	Pathogenic	0.36	D
MetaRNN	Benign	0.26	T
MetaSVM	Benign	-0.56	T
MutationAssessor	Benign	0.69	N
MutationTaster	Benign	0.75	N
PrimateAI	Pathogenic	0.91	D
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.27
Sift	Benign	0.36	T
Sift4G	Benign	0.61	T
Polyphen		0.89	P
Vest4		0.23
MutPred		0.26		Loss of catalytic residue at G266 (P = 0.0671);
MVP		0.57
ClinPred		0.17	T
GERP RS		2.2
Varity_R		0.12
gMVP		0.46

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: rs753420481; hg19: chr1-63789526;