20-22581949-G-T

Variant names:

• chr20-22581949-G-T
• rs762323493
• NM_021784.5:c.1293C>A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_Strong BP6_Moderate BP7 BS2

The NM_021784.5(FOXA2):​c.1293C>A​(p.Gly431Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000685 in 1,460,118 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000068 (0 hom.)
• Consequence: FOXA2 NM_021784.5 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 1.69

Genes affected

FOXA2 (HGNC:5022): (forkhead box A2) This gene encodes a member of the forkhead class of DNA-binding proteins. These hepatocyte nuclear factors are transcriptional activators for liver-specific genes such as albumin and transthyretin, and they also interact with chromatin. Similar family members in mice have roles in the regulation of metabolism and in the differentiation of the pancreas and liver. This gene has been linked to sporadic cases of maturity-onset diabetes of the young. Transcript variants encoding different isoforms have been identified for this gene. [provided by RefSeq, Oct 2008]

ACMG classification

Verdict is Benign. Variant got -11 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.66).
• BP6: Variant 20-22581949-G-T is Benign according to our data. Variant chr20-22581949-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 1543591.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=1.69 with no splicing effect.
• BS2: High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FOXA2	NM_021784.5	c.1293C>A	p.Gly431Gly	synonymous_variant	Exon 2 of 2	ENST00000419308.7	NP_068556.2
FOXA2	NM_153675.3	c.1275C>A	p.Gly425Gly	synonymous_variant	Exon 3 of 3		NP_710141.1
FOXA2	XM_047440133.1	c.1275C>A	p.Gly425Gly	synonymous_variant	Exon 3 of 3		XP_047296089.1
FOXA2	XM_047440134.1	c.1185C>A	p.Gly395Gly	synonymous_variant	Exon 2 of 2		XP_047296090.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FOXA2	ENST00000419308.7	c.1293C>A	p.Gly431Gly	synonymous_variant	Exon 2 of 2	1	NM_021784.5	ENSP00000400341.3
FOXA2	ENST00000377115.4	c.1275C>A	p.Gly425Gly	synonymous_variant	Exon 3 of 3	1		ENSP00000366319.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000685 AC: 10 AN: 1460118 Hom.: 0 Cov.: 30 AF XY: 0.00000827 AC XY: 6 AN XY: 725946

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: 0.00000900

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Dec 02, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.66
CADD	Benign	6.1
DANN	Benign	0.91
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs762323493; hg19: chr20-22562587;