14-28767441-TCACCAC-TCACCACCACCAC

Variant names:

• chr14-28767441-T-TCACCAC
• rs772407998
• NM_005249.5:c.167_172dupACCACC

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP3 BP6_Moderate

The NM_005249.5(FOXG1):​c.167_172dupACCACC​(p.His56_His57dup) variant causes a disruptive inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000191 in 1,047,592 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000019 (0 hom.)
• Consequence: FOXG1 NM_005249.5 disruptive_inframe_insertion
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.23
• Publications: 0 publications found

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:19828): (long intergenic non-protein coding RNA 1551)

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP3: Nonframeshift variant in repetitive region in NM_005249.5
• BP6: Variant 14-28767441-T-TCACCAC is Benign according to our data. Variant chr14-28767441-T-TCACCAC is described in ClinVar as Likely_benign. ClinVar VariationId is 1609893.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005249.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FOXG1	NM_005249.5	MANE Select	c.167_172dupACCACC	p.His56_His57dup	disruptive_inframe_insertion	Exon 1 of 1	NP_005240.3

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FOXG1	ENST00000313071.7	TSL:6 MANE Select	c.167_172dupACCACC	p.His56_His57dup	disruptive_inframe_insertion	Exon 1 of 1	ENSP00000339004.3
	FOXG1	ENST00000706482.1		c.167_172dupACCACC	p.His56_His57dup	disruptive_inframe_insertion	Exon 2 of 2	ENSP00000516406.1
	LINC01551	ENST00000675861.1		n.374+1433_374+1438dupACCACC		intron	N/A

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000191 AC: 2 AN: 1047592 Hom.: 0 Cov.: 24 AF XY: 0.00000194 AC XY: 1 AN XY: 515044

African (AFR) AF: 0.00 AC: 0 AN: 21050

American (AMR) AF: 0.00 AC: 0 AN: 21868

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 15326

East Asian (EAS) AF: 0.00 AC: 0 AN: 17568

South Asian (SAS) AF: 0.00 AC: 0 AN: 51132

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 26964

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2900

European-Non Finnish (NFE) AF: 0.00000235 AC: 2 AN: 852400

Other (OTH) AF: 0.00 AC: 0 AN: 38384

GnomAD4 genome Cov.: 31

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	Rett syndrome, congenital variant (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		1.2

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs772407998; hg19: chr14-29236647;