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GRCh37/hg19 Xq25-28(chrX:124749464-155233731)x1 AND not provided

Germline classification:
Pathogenic (1 submission)
Last evaluated:
Jun 29, 2022
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:
RCV002474567.1

Allele description [Variation Report for GRCh37/hg19 Xq25-28(chrX:124749464-155233731)x1]

GRCh37/hg19 Xq25-28(chrX:124749464-155233731)x1

Genes:
Variant type:
copy number loss
Cytogenetic location:
Xq25-28
Genomic location:
ChrX: 124749464 - 155233731 (on Assembly GRCh37)
Preferred name:
GRCh37/hg19 Xq25-28(chrX:124749464-155233731)x1
HGVS:

    Condition(s)

    Synonyms:
    none provided
    Identifiers:
    MedGen: CN517202

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    Assertion and evidence details

    Submission AccessionSubmitterReview Status
    (Assertion method)
    Clinical Significance
    (Last evaluated)
    OriginMethodCitations
    SCV002771963Quest Diagnostics Nichols Institute San Juan Capistrano
    criteria provided, single submitter

    (ACMG/ClinGen CNV Guidelines, 2019)
    Pathogenic
    (Jun 29, 2022)
    unknownclinical testing

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

    Summary from all submissions

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

    Citations

    PubMed

    Technical standards for the interpretation and reporting of constitutional copy-number variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics (ACMG) and the Clinical Genome Resource (ClinGen).

    Riggs ER, Andersen EF, Cherry AM, Kantarci S, Kearney H, Patel A, Raca G, Ritter DI, South ST, Thorland EC, Pineda-Alvarez D, Aradhya S, Martin CL.

    Genet Med. 2020 Feb;22(2):245-257. doi: 10.1038/s41436-019-0686-8. Epub 2019 Nov 6. Erratum in: Genet Med. 2021 Nov;23(11):2230. doi: 10.1038/s41436-021-01150-9.

    PubMed [citation]
    PMID:
    31690835
    PMCID:
    PMC7313390

    Details of each submission

    From Quest Diagnostics Nichols Institute San Juan Capistrano, SCV002771963.1

    #EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
    1not providednot providednot providednot providedclinical testing PubMed (1)

    Description

    The large Xq27.1q28 deletion at the distal long arm of the X chromosome involves numerous protein-coding genes. The phenotype of the Xq large deletion can range from partial Turner syndrome to minor menstrual abnormality. Microdeletions involving the FMR1 gene locus (3.5 Mb - 9.2 Mb, Xq27-Xq28) have been reported in females with developmental delays and/or other neurological feature such as epilepsy and intellectual disability. Some of these patients were reported to have random X-inactivation (Mol Syndromol. 2014 Feb;5(2):65-75. PMID: 24715853; Pediatrics. 2019 Sep;144(3):e20190599. PMID: 31439621; BMC Med Genet. 2013 May 1;14:49., PMID: 23634718). However, preferential inactivation of the abnormal X chromosome may result in relative normal to mild manifestations. A larger (32 Mb) de novo terminal Xq25q28 deletion was reported in a phenotypically normal 32 year old female except with early menopause. Data showed an extreme skewed X-inactivation of the abnormal X chromosome (Front Genet. 2020 Mar 4;11:101. PMID: 32194616).

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

    Last Updated: Mar 26, 2023