X-150987884-AGAGGAG-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP6BS2

The NM_005342.4(HMGB3):​c.591_596delGGAGGA​(p.Glu197_Glu198del) variant causes a disruptive inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000178 in 1,176,973 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 61 hemizygotes in GnomAD. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00023 ( 0 hom., 5 hem., cov: 22)
Exomes 𝑓: 0.00017 ( 0 hom. 56 hem. )

Consequence

HMGB3
NM_005342.4 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 7.34
Variant links:
Genes affected
HMGB3 (HGNC:5004): (high mobility group box 3) This gene encodes a member of a family of proteins containing one or more high mobility group DNA-binding motifs. The encoded protein plays an important role in maintaining stem cell populations, and may be aberrantly expressed in tumor cells. A mutation in this gene was associated with microphthalmia, syndromic 13. There are numerous pseudogenes of this gene on multiple chromosomes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP6
Variant X-150987884-AGAGGAG-A is Benign according to our data. Variant chrX-150987884-AGAGGAG-A is described in ClinVar as [Likely_benign]. Clinvar id is 3033754.Status of the report is no_assertion_criteria_provided, 0 stars.
BS2
High Hemizygotes in GnomAd4 at 5 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HMGB3NM_005342.4 linkuse as main transcriptc.591_596delGGAGGA p.Glu197_Glu198del disruptive_inframe_deletion 5/5 ENST00000325307.12 NP_005333.2 O15347

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HMGB3ENST00000325307.12 linkuse as main transcriptc.591_596delGGAGGA p.Glu197_Glu198del disruptive_inframe_deletion 5/51 NM_005342.4 ENSP00000359393.3 O15347
HMGB3ENST00000448905.6 linkuse as main transcriptc.591_596delGGAGGA p.Glu197_Glu198del disruptive_inframe_deletion 5/51 ENSP00000442758.1 O15347
HMGB3ENST00000419110.5 linkuse as main transcriptc.*8_*13delGAGGAG downstream_gene_variant 3 ENSP00000410354.1 E7ES08

Frequencies

GnomAD3 genomes
AF:
0.000234
AC:
26
AN:
111043
Hom.:
0
Cov.:
22
AF XY:
0.000150
AC XY:
5
AN XY:
33297
show subpopulations
Gnomad AFR
AF:
0.0000655
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000387
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000282
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000166
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000340
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000213
AC:
36
AN:
169187
Hom.:
0
AF XY:
0.000115
AC XY:
7
AN XY:
60757
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000728
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000152
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000102
Gnomad NFE exome
AF:
0.000179
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000172
AC:
183
AN:
1065930
Hom.:
0
AF XY:
0.000162
AC XY:
56
AN XY:
344662
show subpopulations
Gnomad4 AFR exome
AF:
0.000193
Gnomad4 AMR exome
AF:
0.000488
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000134
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000618
Gnomad4 NFE exome
AF:
0.000181
Gnomad4 OTH exome
AF:
0.000111
GnomAD4 genome
AF:
0.000234
AC:
26
AN:
111043
Hom.:
0
Cov.:
22
AF XY:
0.000150
AC XY:
5
AN XY:
33297
show subpopulations
Gnomad4 AFR
AF:
0.0000655
Gnomad4 AMR
AF:
0.000387
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000282
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000166
Gnomad4 NFE
AF:
0.000340
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000264

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

HMGB3-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 02, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs782021512; hg19: chrX-150156357; API