NM_052876.4(NACC1):c.998G>A (p.Arg333His) AND Inborn genetic diseases

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Dec 20, 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:: RCV004245977.1

Allele description [Variation Report for NM_052876.4(NACC1):c.998G>A (p.Arg333His)]

NM_052876.4(NACC1):c.998G>A (p.Arg333His)

Gene:

NACC1:nucleus accumbens associated 1 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

19p13.13

Genomic location:

Preferred name:

NM_052876.4(NACC1):c.998G>A (p.Arg333His)

HGVS:

NC_000019.10:g.13136283G>A
NM_052876.2:c.998G>A
NM_052876.4:c.998G>AMANE SELECT
NP_443108.1:p.Arg333His
NC_000019.9:g.13247097G>A
NM_052876.3:c.998G>A

Protein change:

R333H

Molecular consequence:

NM_052876.4:c.998G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Inborn genetic diseases
Identifiers:: MeSH: D030342; MedGen: C0950123

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004961540	Ambry Genetics	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Uncertain significance (Dec 20, 2023)	germline	clinical testing	Citation Link

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV004961540

Ambry Genetics

criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)

Uncertain significance
(Dec 20, 2023)

germline

clinical testing

Citation Link

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

Details of each submission

From Ambry Genetics, SCV004961540.1

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

Description

The c.998G>A (p.R333H) alteration is located in exon 3 (coding exon 2) of the NACC1 gene. This alteration results from a G to A substitution at nucleotide position 998, causing the arginine (R) at amino acid position 333 to be replaced by a histidine (H). This variant was not reported in population-based cohorts in the Genome Aggregation Database (gnomAD). This variant has been determined to be the result of a de novo mutation in one individual with features consistent with NACC1-related neurodevelopmental disorder (External communication). This amino acid position is well conserved in available vertebrate species. This missense alteration is located in a region that has a low rate of benign missense variation (Lek, 2016; Firth, 2009). This alteration is predicted to be tolerated by in silico analysis. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

#	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: May 7, 2024

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