Genetic Variant HOXB7:p.Gln113Arg (chr17-48610581-T-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004502.4(HOXB7):c.338A>G(p.Gln113Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000029 in 1,549,214 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

HOXB7
NM_004502.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.12

Variant links:

Genes affected

HOXB7 (HGNC:5118): (homeobox B7) This gene is a member of the Antp homeobox family and encodes a protein with a homeobox DNA-binding domain. It is included in a cluster of homeobox B genes located on chromosome 17. The encoded nuclear protein functions as a sequence-specific transcription factor that is involved in cell proliferation and differentiation. Increased expression of this gene is associated with some cases of melanoma and ovarian carcinoma. [provided by RefSeq, Jul 2008]

HOXB7 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.154071).

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HOXB7	NM_004502.4 link	c.338A>G	p.Gln113Arg	missense_variant	Exon 1 of 2	ENST00000239165.9	NP_004493.3	P09629

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HOXB7	ENST00000239165.9 link	c.338A>G	p.Gln113Arg	missense_variant	Exon 1 of 2	1	NM_004502.4	ENSP00000239165.7		P09629
HOXB7	ENST00000567101.2 link	n.60-2486A>G		intron_variant	Intron 1 of 1	2

Frequencies

GnomAD3 genomes

AF:

0.0000525

AC:

AN:

152246

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000647

AC:

AN:

154510

Hom.:

AF XY:

0.0000845

AC XY:

AN XY:

82816

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000433

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000675

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000265

AC:

AN:

1396850

Hom.:

Cov.:

AF XY:

0.0000276

AC XY:

AN XY:

688892

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000126

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000232

Gnomad4 OTH exome

AF:

0.0000519

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152364

Hom.:

Cov.:

AF XY:

0.0000939

AC XY:

AN XY:

74518

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000680

ExAC

AF:

0.0000449

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.338A>G (p.Q113R) alteration is located in exon 1 (coding exon 1) of the HOXB7 gene. This alteration results from a A to G substitution at nucleotide position 338, causing the glutamine (Q) at amino acid position 113 to be replaced by an arginine (R). 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

0.10

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.18

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.14

Eigen

Benign

0.14

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.58

M_CAP

Uncertain

0.087

MetaRNN

Benign

0.15

MetaSVM

Uncertain

0.25

MutationAssessor

Benign

1.6

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-1.1

REVEL

Uncertain

0.43

Sift

Benign

0.15

Sift4G

Benign

0.45

Polyphen

0.45

Vest4

0.082

MutPred

0.39

Gain of MoRF binding (P = 0.1163);

MVP

0.86

MPC

0.60

ClinPred

0.12

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.24

gMVP

0.44

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

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