Genetic Variant HMGXB4:c.-62C>T (chr22-35264654-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001362972.2(HMGXB4):c.-62C>T variant causes a 5 prime UTR premature start codon gain change. The variant allele was found at a frequency of 0.0000288 in 1,560,718 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

HMGXB4
NM_001362972.2 5_prime_UTR_premature_start_codon_gain

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.38

Variant links:

Genes affected

HMGXB4 (HGNC:5003): (HMG-box containing 4) High mobility group (HMG) proteins are nonhistone chromosomal proteins. See HMG2 (MIM 163906) for additional information on HMG proteins.[supplied by OMIM, Nov 2010]

HMGXB4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.08328718).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HMGXB4	NM_001003681.3 link	c.266C>T	p.Ser89Leu	missense_variant	Exon 5 of 11	ENST00000216106.6	NP_001003681.1	Q9UGU5Q7Z641

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HMGXB4	ENST00000216106.6 link	c.266C>T	p.Ser89Leu	missense_variant	Exon 5 of 11	5	NM_001003681.3	ENSP00000216106.5		Q9UGU5

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000423

AC:

AN:

212814

Hom.:

AF XY:

0.0000518

AC XY:

AN XY:

115814

show subpopulations

Gnomad AFR exome

AF:

0.0000658

Gnomad AMR exome

AF:

0.0000813

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000857

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000394

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000291

AC:

AN:

1408428

Hom.:

Cov.:

AF XY:

0.0000316

AC XY:

AN XY:

696876

show subpopulations

Gnomad4 AFR exome

AF:

0.0000324

Gnomad4 AMR exome

AF:

0.0000300

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000384

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000312

Gnomad4 OTH exome

AF:

0.0000173

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152290

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000340

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 22, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.266C>T (p.S89L) alteration is located in exon 5 (coding exon 4) of the HMGXB4 gene. This alteration results from a C to T substitution at nucleotide position 266, causing the serine (S) at amino acid position 89 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.082

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.33

CADD

Pathogenic

DANN

Benign

0.96

DEOGEN2

Benign

0.012

Eigen

Benign

0.053

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.85

M_CAP

Benign

0.012

MetaRNN

Benign

0.083

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.97

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-1.5

REVEL

Benign

0.17

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.037

Polyphen

0.012

Vest4

0.43

MVP

0.34

MPC

0.093

ClinPred

0.050

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.10

gMVP

0.066

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over