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NM_000518.5(HBB):c.*74A>G AND not provided

Germline classification:
Conflicting interpretations of pathogenicity (2 submissions)
Last evaluated:
Sep 16, 2022
Review status:
criteria provided, conflicting classifications
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:
RCV001812924.15

Allele description [Variation Report for NM_000518.5(HBB):c.*74A>G]

NM_000518.5(HBB):c.*74A>G

Genes:
LOC110006319:beta-globin gene 3' regulatory region [Gene]
HBB:hemoglobin subunit beta [Gene - OMIM - HGNC]
LOC107133510:origin of replication at HBB [Gene]
Variant type:
single nucleotide variant
Cytogenetic location:
11p15.4
Genomic location:
Preferred name:
NM_000518.5(HBB):c.*74A>G
HGVS:
  • NC_000011.10:g.5225524T>C
  • NG_000007.3:g.72092A>G
  • NG_046672.1:g.3459T>C
  • NG_053049.1:g.1845T>C
  • NG_059281.1:g.6548A>G
  • NM_000518.5:c.*74A>GMANE SELECT
  • LRG_1232t1:c.*74A>G
  • LRG_1232:g.6548A>G
  • NC_000011.9:g.5246754T>C
  • NM_000518.4:c.*74A>G
Links:
dbSNP: rs369101035
NCBI 1000 Genomes Browser:
rs369101035
Molecular consequence:
  • NM_000518.5:c.*74A>G - 3 prime UTR variant - [Sequence Ontology: SO:0001624]

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
SCV001472463ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
criteria provided, single submitter

(ARUP Molecular Germline Variant Investigation Process)
Uncertain significance
(Nov 25, 2019)
germlineclinical testing

Citation Link,

SCV004219846Quest Diagnostics Nichols Institute San Juan Capistrano
criteria provided, single submitter

(Quest Diagnostics criteria)
Likely benign
(Sep 16, 2022)
unknownclinical testing

PubMed (3)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedunknownunknownnot providednot providednot providednot providednot providedclinical testing
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Evaluation of the validity of Hb A2 and mean corpuscular haemoglobin action values in antenatal screening for beta thalassaemia carriers in England.

Daniel Y, Cartwright R, Rennie K, Streetly A, Howard J.

Br J Haematol. 2014 Aug;166(4):607-11. doi: 10.1111/bjh.12917. Epub 2014 Apr 23.

PubMed [citation]
PMID:
24754789

Mutations of a country: a mutation review of single gene disorders in the United Arab Emirates (UAE).

Al-Gazali L, Ali BR.

Hum Mutat. 2010 May;31(5):505-20. doi: 10.1002/humu.21232. Review.

PubMed [citation]
PMID:
20437613
See all PubMed Citations (3)

Details of each submission

From ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories, SCV001472463.1

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

Description

The HBB c.*74A>G variant (rs369101035) is reported in the literature in individuals affected with beta-thalassemia or mild anemia, although its clinical significance was not determined in these studies (Al-Gazali 2010, Daniel 2014). This variant is absent from general population databases (Exome Variant Server, Genome Aggregation Database), indicating it is not a common polymorphism. This variant occurs in the 3' untranslated region at a nucleotide that is moderately conserved and is located upstream of the poly(A) signal. However, given the lack of clinical and functional data, the significance of the c.*74A>G variant is uncertain at this time. References: Al-Gazali L and Ali BR. Mutations of a country: a mutation review of single gene disorders in the United Arab Emirates (UAE). Hum Mutat. 2010 May;31(5):505-20. Daniel Y et al. Evaluation of the validity of Hb A2 and mean corpuscular haemoglobin action values in antenatal screening for beta thalassaemia carriers in England. Br J Haematol. 2014 Aug;166(4):607-11.

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

From Quest Diagnostics Nichols Institute San Juan Capistrano, SCV004219846.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (3)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1unknownunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Jun 29, 2024