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NM_000022.4(ADA):c.646G>A (p.Gly216Arg) AND not provided

Germline classification:
Pathogenic (2 submissions)
Last evaluated:
Mar 1, 2024
Review status:
2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts
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:
RCV000256171.10

Allele description [Variation Report for NM_000022.4(ADA):c.646G>A (p.Gly216Arg)]

NM_000022.4(ADA):c.646G>A (p.Gly216Arg)

Gene:
ADA:adenosine deaminase [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
20q13.12
Genomic location:
Preferred name:
NM_000022.4(ADA):c.646G>A (p.Gly216Arg)
Other names:
NM_000022.4(ADA):c.646G>A
HGVS:
  • NC_000020.11:g.44623039C>T
  • NG_007385.1:g.33697G>A
  • NM_000022.4:c.646G>AMANE SELECT
  • NM_001322050.2:c.241G>A
  • NM_001322051.2:c.607-109G>A
  • NP_000013.2:p.Gly216Arg
  • NP_001308979.1:p.Gly81Arg
  • LRG_16:g.33697G>A
  • NC_000020.10:g.43251680C>T
  • NM_000022.3:c.646G>A
  • NR_136160.2:n.738G>A
  • P00813:p.Gly216Arg
Protein change:
G216R; GLY216ARG
Links:
UniProtKB: P00813#VAR_002234; OMIM: 608958.0016; dbSNP: rs121908723
NCBI 1000 Genomes Browser:
rs121908723
Molecular consequence:
  • NM_001322051.2:c.607-109G>A - intron variant - [Sequence Ontology: SO:0001627]
  • NM_000022.4:c.646G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001322050.2:c.241G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NR_136160.2:n.738G>A - non-coding transcript variant - [Sequence Ontology: SO:0001619]
Observations:
1

Condition(s)

Synonyms:
none provided
Identifiers:
MedGen: C3661900

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000321380GeneDx
criteria provided, single submitter

(GeneDx Variant Classification (06012015))
Pathogenic
(Jul 10, 2017)
germlineclinical testing

Citation Link,

SCV004704419CeGaT Center for Human Genetics Tuebingen
criteria provided, single submitter

(CeGaT Center For Human Genetics Tuebingen Variant Classification Criteria Version 2)
Pathogenic
(Mar 1, 2024)
germlineclinical testing

Citation Link

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineyes1not providednot providednot providednot providedclinical testing

Details of each submission

From GeneDx, SCV000321380.7

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testingnot provided

Description

The G216R missense variant in the ADA gene has been reported previously in association with adenosine adeaminase deficiency in patients of varied ancestries (Hirschhorn et al., 1991; Arredondo-Vega et al., 1998; Adams et al., 2015; Baffelli et al., 2015). It was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. G216R is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. This substitution occurs at a position that is conserved across species, and in silico analysis predicts this variant is probably damaging to the protein structure/function. Missense variants in nearby residues (R211H/C, V213F, A215T, E217K) have been reported in the Human Gene Mutation Database in association with ADA-related disorders (Stenson et al., 2014), supporting the functional importance of this region of the protein. In addition, functional studies have shown that the G216R variant results in reduced catalytic activity and early clinical presentation of the disorder (Arredondo-Vega et al., 1998). Therefore, we consider this variant to be pathogenic.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineyesnot providednot providednot providednot providednot providednot providednot provided

From CeGaT Center for Human Genetics Tuebingen, SCV004704419.8

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided1not providednot providedclinical testingnot provided

Description

ADA: PM3:Very Strong, PM2, PS3:Supporting

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineyesnot providednot providednot provided1not providednot providednot provided

Last Updated: Oct 20, 2024