Variant rs757850760 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BS1BS2

The NM_003924.4(PHOX2B):c.735_767delGGCGGCCGCGGCAGCGGCGGCGGCGGCAGCGGC(p.Ala246_Ala256del) variant causes a disruptive inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00014 in 1,255,482 control chromosomes in the GnomAD database, including 26 homozygotes. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000082 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 26 hom. )

Consequence

PHOX2B
NM_003924.4 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 3.23

Variant links:

Genes affected

PHOX2B (HGNC:9143): (paired like homeobox 2B) The DNA-associated protein encoded by this gene is a member of the paired family of homeobox proteins localized to the nucleus. The protein functions as a transcription factor involved in the development of several major noradrenergic neuron populations and the determination of neurotransmitter phenotype. The gene product is linked to enhancement of second messenger-mediated activation of the dopamine beta-hydroylase, c-fos promoters and several enhancers, including cyclic amp-response element and serum-response element. Expansion of a 20 amino acid polyalanine tract in this protein by 5-13 aa has been associated with congenital central hypoventilation syndrome. [provided by RefSeq, Jul 2016]

PHOX2B links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000819 (12/146574) while in subpopulation SAS AF= 0.00191 (9/4700). AF 95% confidence interval is 0.000999. There are 0 homozygotes in gnomad4. There are 11 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 12 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PHOX2B	NM_003924.4 link	c.735_767delGGCGGCCGCGGCAGCGGCGGCGGCGGCAGCGGC	p.Ala246_Ala256del	disruptive_inframe_deletion	Exon 3 of 3	ENST00000226382.4	NP_003915.2	Q99453

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PHOX2B	ENST00000226382.4 link	c.735_767delGGCGGCCGCGGCAGCGGCGGCGGCGGCAGCGGC	p.Ala246_Ala256del	disruptive_inframe_deletion	Exon 3 of 3	1	NM_003924.4	ENSP00000226382.2		Q99453
PHOX2B	ENST00000510424.2 link	n.16_48delGGCGGCCGCGGCAGCGGCGGCGGCGGCAGCGGC		downstream_gene_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000819

AC:

AN:

146472

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00111

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00191

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000302

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000788

AC:

AN:

35526

Hom.:

AF XY:

0.00116

AC XY:

AN XY:

21632

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00413

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000606

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000148

AC:

164

AN:

1108908

Hom.:

AF XY:

0.000236

AC XY:

126

AN XY:

533988

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000432

Gnomad4 SAS exome

AF:

0.00511

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000214

Gnomad4 OTH exome

AF:

0.000207

GnomAD4 genome

AF:

0.0000819

AC:

AN:

146574

Hom.:

Cov.:

AF XY:

0.000154

AC XY:

AN XY:

71328

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00191

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000303

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Haddad syndrome

Benign:1

Aug 05, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Jan 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

PHOX2B: BS2 -

PHOX2B-related disorder

Benign:1

Jun 05, 2020

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over