Variant chr17-48543342-C-T details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_002145.4(HOXB2):c.797G>A(p.Arg266His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000357 in 1,598,474 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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: 31)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

HOXB2
NM_002145.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.481

Variant links:

Genes affected

HOXB2 (HGNC:5113): (homeobox B2) This gene is a member of the Antp homeobox family and encodes a nuclear protein with a homeobox DNA-binding domain. It is included in a cluster of homeobox B genes located on chromosome 17. The encoded protein functions as a sequence-specific transcription factor that is involved in development. Increased expression of this gene is associated with pancreatic cancer. [provided by RefSeq, Jul 2008]

HOXB2 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=0.080141574).

BS2

High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HOXB2	NM_002145.4 linkuse as main transcript	c.797G>A	p.Arg266His	missense_variant	2/2	ENST00000330070.6
HOXB2	XM_005257275.5 linkuse as main transcript	c.470G>A	p.Arg157His	missense_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HOXB2	ENST00000330070.6 linkuse as main transcript	c.797G>A	p.Arg266His	missense_variant	2/2	1	NM_002145.4	P1
HOXB2	ENST00000571287.1 linkuse as main transcript	n.442G>A		non_coding_transcript_exon_variant	2/2	3

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152102

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000735

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.00000903

AC:

AN:

221582

Hom.:

AF XY:

0.0000163

AC XY:

AN XY:

122848

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000203

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000339

AC:

AN:

1446372

Hom.:

Cov.:

AF XY:

0.0000292

AC XY:

AN XY:

719406

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000415

Gnomad4 OTH exome

AF:

0.0000501

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152102

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.000478

Bravo

AF:

0.0000340

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 22, 2023

The c.797G>A (p.R266H) alteration is located in exon 2 (coding exon 2) of the HOXB2 gene. This alteration results from a G to A substitution at nucleotide position 797, causing the arginine (R) at amino acid position 266 to be replaced by a histidine (H). 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

0.077

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.54

CADD

Benign

0.98

DANN

Benign

0.95

DEOGEN2

Benign

0.069

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.087

LIST_S2

Benign

0.40

M_CAP

Uncertain

0.23

MetaRNN

Benign

0.080

MetaSVM

Benign

-0.64

MutationAssessor

Benign

-0.23

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.57

PROVEAN

Benign

0.72

REVEL

Benign

0.11

Sift

Benign

0.60

Sift4G

Benign

0.31

Polyphen

0.0030

Vest4

0.013

MutPred

0.38

Loss of methylation at R266 (P = 0.0365);

MVP

0.64

MPC

0.39

ClinPred

0.044

GERP RS

-8.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.020

gMVP

0.17

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