chr14-28767374-A-G

Position:

• chr14-28767374-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 3P and 3B. PM2 PP2 BP4_Moderate BP6

The NM_005249.5(FOXG1):​c.95A>G​(p.Asn32Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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 Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: FOXG1 NM_005249.5 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 0.107

Genes affected

FOXG1 (HGNC:3811): (forkhead box G1) This locus encodes a member of the fork-head transcription factor family. The encoded protein, which functions as a transcriptional repressor, is highly expressed in neural tissues during brain development. Mutations at this locus have been associated with Rett syndrome and a diverse spectrum of neurodevelopmental disorders defined as part of the FOXG1 syndrome. This gene is disregulated in many types of cancer and is the target of multiple microRNAs that regulate the proliferation of tumor cells. [provided by RefSeq, Jul 2020]

LINC01551 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FOXG1. . Trascript score misZ 3.7891 (greater than threshold 3.09). GenCC has associacion of gene with Rett syndrome, congenital variant, FOXG1 disorder.
• BP4: Computational evidence support a benign effect (MetaRNN=0.08753416).
• BP6: Variant 14-28767374-A-G is Benign according to our data. Variant chr14-28767374-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1144732.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FOXG1	NM_005249.5	c.95A>G	p.Asn32Ser	missense_variant	1/1	ENST00000313071.7	NP_005240.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FOXG1	ENST00000313071.7	c.95A>G	p.Asn32Ser	missense_variant	1/1	6	NM_005249.5	ENSP00000339004.3
FOXG1	ENST00000706482.1	c.95A>G	p.Asn32Ser	missense_variant	2/2			ENSP00000516406.1
LINC01551	ENST00000675861.1	n.374+1361A>G		intron_variant

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1320842 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 656656

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 30

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 26, 2022

The c.95A>G (p.N32S) alteration is located in exon 1 (coding exon 1) of the FOXG1 gene. This alteration results from a A to G substitution at nucleotide position 95, causing the asparagine (N) at amino acid position 32 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Rett syndrome, congenital variant Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 15, 2022

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.081
BayesDel_addAF	Benign	-0.32	T
BayesDel_noAF	Benign	-0.70
CADD	Benign	20
DANN	Benign	0.97
DEOGEN2	Benign	0.36	T
Eigen	Benign	-0.41
Eigen_PC	Benign	-0.32
FATHMM_MKL	Benign	0.25	N
LIST_S2	Benign	0.65	T
M_CAP	Uncertain	0.21	D
MetaRNN	Benign	0.088	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.90	L
MutationTaster	Benign	0.83	D;D
PrimateAI	Uncertain	0.64	T
PROVEAN	Benign	-0.54	N
REVEL	Benign	0.083
Sift	Benign	0.037	D
Sift4G	Benign	0.39	T
Polyphen		0.023	B
Vest4		0.062
MutPred		0.21		Gain of catalytic residue at H37 (P = 0.008);
MVP		0.38
ClinPred		0.15	T
GERP RS		2.0
Varity_R		0.096
gMVP		0.15

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: rs1429160286; hg19: chr14-29236580;