Genetic Variant HMGB1:c.-14-2354C>A (chr13-30466048-G-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001313893.1(HMGB1):c.-14-2354C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00098 in 659,214 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00076 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0010 ( 2 hom. )

Consequence

HMGB1
NM_001313893.1 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.62

Publications

2 publications found

Variant links:

Genes affected

HMGB1 (HGNC:4983): (high mobility group box 1) This gene encodes a protein that belongs to the High Mobility Group-box superfamily. The encoded non-histone, nuclear DNA-binding protein regulates transcription, and is involved in organization of DNA. This protein plays a role in several cellular processes, including inflammation, cell differentiation and tumor cell migration. Multiple pseudogenes of this gene have been identified. Alternative splicing results in multiple transcript variants that encode the same protein. [provided by RefSeq, Sep 2015]

HMGB1 Gene-Disease associations (from GenCC):

intellectual disability
Inheritance: AD Classification: LIMITED Submitted by: G2P

HMGB1 links:

ENSG00000285840 (HGNC:):

ENSG00000285840 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.29).

BS2

High AC in GnomAd4 at 116 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HMGB1	NM_002128.7 link	c.-267C>A		upstream_gene_variant		ENST00000341423.10	NP_002119.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HMGB1	ENST00000341423.10 link	c.-267C>A		upstream_gene_variant		1	NM_002128.7	ENSP00000345347.5

Frequencies

GnomAD3 genomes

AF:

0.000762

AC:

116

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00236

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00116

Gnomad OTH

AF:

0.00144

GnomAD4 exome

AF:

0.00105

AC:

530

AN:

506904

Hom.:

AF XY:

0.00109

AC XY:

258

AN XY:

237358

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

9490

American (AMR)

AF:

0.00

AC:

AN:

592

Ashkenazi Jewish (ASJ)

AF:

0.000317

AC:

AN:

3150

East Asian (EAS)

AF:

0.00

AC:

AN:

2148

South Asian (SAS)

AF:

0.00101

AC:

AN:

9946

European-Finnish (FIN)

AF:

0.00169

AC:

AN:

592

Middle Eastern (MID)

AF:

0.00288

AC:

AN:

1040

European-Non Finnish (NFE)

AF:

0.00108

AC:

500

AN:

463518

Other (OTH)

AF:

0.000913

AC:

AN:

16428

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

107

134

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

120

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000762

AC:

116

AN:

152310

Hom.:

Cov.:

AF XY:

0.000859

AC XY:

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41570

American (AMR)

AF:

0.0000654

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00104

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00236

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00116

AC:

AN:

68024

Other (OTH)

AF:

0.00142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000530

Hom.:

Bravo

AF:

0.000574

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.29

CADD

Benign

(source)

DANN

Benign

0.86

PhyloP100

2.6

PromoterAI

-0.12

Neutral

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over