NM_003924.4(PHOX2B):c.743C>T (p.Ala248Val) AND Haddad syndrome

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Sep 11, 2023
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001229820.3

Allele description [Variation Report for NM_003924.4(PHOX2B):c.743C>T (p.Ala248Val)]

NM_003924.4(PHOX2B):c.743C>T (p.Ala248Val)

Genes:

PHOX2B:paired like homeobox 2B [Gene - OMIM - HGNC]
LOC110011216:paired like homeobox 2b polyalanine repeat instability region [Gene]

Variant type:

single nucleotide variant

Cytogenetic location:

4p13

Genomic location:

Preferred name:

NM_003924.4(PHOX2B):c.743C>T (p.Ala248Val)

HGVS:

NC_000004.12:g.41746009G>A
NG_008243.1:g.7962C>T
NG_053075.1:g.135G>A
NM_003924.4:c.743C>TMANE SELECT
NP_003915.2:p.Ala248Val
LRG_513t1:c.743C>T
LRG_513:g.7962C>T
NC_000004.11:g.41748026G>A
NC_000004.11:g.41748026G>A
NM_003924.3:c.743C>T

Protein change:

A248V

Links:

dbSNP: rs1733881041

NCBI 1000 Genomes Browser:

rs1733881041

Molecular consequence:

NM_003924.4:c.743C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Haddad syndrome (OHD)
Synonyms:: Ondine-Hirschsprung disease
Identifiers:: MONDO: MONDO:0020493; MedGen: C1859049; Orphanet: 99803

Recent activity

Clear Turn Off Turn On

high mobility group nucleosome-binding domain-containing protein 3 isoform a [Ho...
high mobility group nucleosome-binding domain-containing protein 3 isoform a [Homo sapiens]
gi|20270186|ref|NP_004233.1|

Protein

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

Help

Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV001402277	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Sep 11, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV001402277

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Sep 11, 2023)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001402277.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 248 of the PHOX2B protein (p.Ala248Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with PHOX2B-related conditions. ClinVar contains an entry for this variant (Variation ID: 956928). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Nov 3, 2024

ClinVar

Relating variation to medicine