rs917558720

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_003924.4(PHOX2B):c.719G>A(p.Gly240Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000033 in 1,210,644 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G240S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 9.4e-7 ( 0 hom. )

Consequence

PHOX2B
NM_003924.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 2.79

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

central hypoventilation syndrome, congenital, 1, with or without Hirschsprung disease
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, G2P
Haddad syndrome
Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
neuroblastoma, susceptibility to, 2
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P
congenital central hypoventilation syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

PHOX2B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19096005).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003924.4. 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
	PHOX2B	NM_003924.4	MANE Select	c.719G>A	p.Gly240Asp	missense	Exon 3 of 3	NP_003915.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PHOX2B	ENST00000226382.4	TSL:1 MANE Select	c.719G>A	p.Gly240Asp	missense	Exon 3 of 3	ENSP00000226382.2
	PHOX2B	ENST00000510424.2	TSL:3	n.540G>A		splice_region non_coding_transcript_exon	Exon 3 of 3

Frequencies

GnomAD3 genomes

AF:

0.0000203

AC:

AN:

148058

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000244

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000134

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

9.41e-7

AC:

AN:

1062586

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

509344

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

20990

American (AMR)

AF:

0.00

AC:

AN:

7360

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

12180

East Asian (EAS)

AF:

0.00

AC:

AN:

21426

South Asian (SAS)

AF:

0.00

AC:

AN:

24354

European-Finnish (FIN)

AF:

0.00

AC:

AN:

21624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2702

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

911014

Other (OTH)

AF:

0.0000244

AC:

AN:

40936

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000203

AC:

AN:

148058

Hom.:

Cov.:

AF XY:

0.0000277

AC XY:

AN XY:

72130

show subpopulations

African (AFR)

AF:

0.0000244

AC:

AN:

40910

American (AMR)

AF:

0.000134

AC:

AN:

14902

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3406

East Asian (EAS)

AF:

0.00

AC:

AN:

5072

South Asian (SAS)

AF:

0.00

AC:

AN:

4808

European-Finnish (FIN)

AF:

0.00

AC:

AN:

8988

Middle Eastern (MID)

AF:

0.00

AC:

AN:

308

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

66714

Other (OTH)

AF:

0.00

AC:

AN:

2046

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000340

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Haddad syndrome (1)

Hereditary cancer-predisposing syndrome (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Uncertain

0.044

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.34

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.34

LIST_S2

Benign

0.43

M_CAP

Pathogenic

0.32

MetaRNN

Benign

0.19

MetaSVM

Benign

-0.80

MutationAssessor

Benign

0.55

PhyloP100

2.8

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-0.46

REVEL

Uncertain

0.39

Sift

Uncertain

0.0070

Sift4G

Benign

0.11

Polyphen

0.0

Vest4

0.28

MutPred

0.32

Loss of catalytic residue at P236 (P = 0.0983)

MVP

0.93

MPC

1.4

ClinPred

0.070

GERP RS

-0.013

Varity_R

0.17

gMVP

0.71

Mutation Taster

=91/9

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over