Genetic Variant HOXB1:p.Arg207His (chr17-48529833-C-T) – ACMG Classification: Likely_pathogenic (9 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM2PM5PP3_StrongPP5

The NM_002144.4(HOXB1):c.620G>A(p.Arg207His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 14/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R207C) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

HOXB1
NM_002144.4 missense

Scores

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 7.90

Publications

0 publications found

Variant links:

Genes affected

HOXB1 (HGNC:5111): (homeobox B1) This gene belongs to the homeobox family of genes. The homeobox genes encode a highly conserved family of transcription factors that play an important role in morphogenesis in all multicellular organisms. Mammals possess four similar homeobox gene clusters, HOXA, HOXB, HOXC and HOXD, located on different chromosomes, consisting of 9 to 11 genes arranged in tandem. This gene is one of several homeobox HOXB genes located in a cluster on chromosome 17. [provided by RefSeq, Jul 2008]

HOXB1 Gene-Disease associations (from GenCC):

facial paresis, hereditary congenital, 3
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
congenital hereditary facial paralysis-variable hearing loss syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

HOXB1 links:

ENSG00000294508 (HGNC:):

ENSG00000294508 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr17-48529834-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 35567.Status of the report is no_assertion_criteria_provided, 0 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.986

PP5

Variant 17-48529833-C-T is Pathogenic according to our data. Variant chr17-48529833-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 495205.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HOXB1	NM_002144.4 link	c.620G>A	p.Arg207His	missense_variant	Exon 2 of 2	ENST00000239174.7	NP_002135.2	P14653-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
HOXB1	ENST00000239174.7 link	c.620G>A	p.Arg207His	missense_variant	Exon 2 of 2	1	NM_002144.4	ENSP00000355140.5	P14653-1
HOXB1	ENST00000577092.1 link	c.*373G>A		3_prime_UTR_variant	Exon 1 of 1	6		ENSP00000459066.1	P14653-2
ENSG00000294508	ENST00000724000.1 link	n.817+1460C>T		intron_variant	Intron 2 of 2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1445578

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

718988

African (AFR)

AF:

0.00

AC:

AN:

33440

American (AMR)

AF:

0.00

AC:

AN:

44628

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26048

East Asian (EAS)

AF:

0.00

AC:

AN:

39594

South Asian (SAS)

AF:

0.00

AC:

AN:

86090

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40318

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1109544

Other (OTH)

AF:

0.00

AC:

AN:

60154

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Facial paresis, hereditary congenital, 3

Pathogenic:1

Mar 06, 2018

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Pathogenic

0.58

BayesDel_noAF

Pathogenic

0.59

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.80

D;D

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.92

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

.;D

M_CAP

Pathogenic

0.63

MetaRNN

Pathogenic

0.99

D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

4.8

H;H

PhyloP100

7.9

PrimateAI

Pathogenic

0.83

PROVEAN

Pathogenic

-4.5

D;.

REVEL

Pathogenic

0.98

Sift

Pathogenic

0.0

D;.

Sift4G

Pathogenic

0.0

D;.

Polyphen

1.0

D;D

Vest4

0.93

MutPred

0.89

Loss of methylation at R207 (P = 0.074);Loss of methylation at R207 (P = 0.074);

MVP

0.97

MPC

1.4

ClinPred

1.0

GERP RS

4.9

Varity_R

0.92

gMVP

0.92

Mutation Taster

=14/86

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over