NM_018952.5:c.402G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_018952.5(HOXB6):​c.402G>A​(p.Met134Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000246 in 1,460,560 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

HOXB6
NM_018952.5 missense

Scores

5
10
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.48
Variant links:
Genes affected
HOXB6 (HGNC:5117): (homeobox B6) 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 protein functions as a sequence-specific transcription factor that is involved in development, including that of lung and skin, and has been localized to both the nucleus and cytoplasm. Altered expression of this gene or a change in the subcellular localization of its protein is associated with some cases of acute myeloid leukemia and colorectal cancer. [provided by RefSeq, Jul 2008]
HOXB-AS3 (HGNC:40283): (HOXB cluster antisense RNA 3)
HOXB3 (HGNC:5114): (homeobox B3) 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 a distinct biologic subset of acute myeloid leukemia (AML). [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
High AC in GnomAdExome4 at 36 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HOXB6NM_018952.5 linkc.402G>A p.Met134Ile missense_variant Exon 3 of 4 ENST00000225648.4 NP_061825.2 P17509-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HOXB6ENST00000225648.4 linkc.402G>A p.Met134Ile missense_variant Exon 3 of 4 1 NM_018952.5 ENSP00000225648.3 P17509-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000815
AC:
2
AN:
245514
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000182
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000246
AC:
36
AN:
1460560
Hom.:
0
Cov.:
32
AF XY:
0.0000234
AC XY:
17
AN XY:
726482
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33430
American (AMR)
AF:
0.00
AC:
0
AN:
44604
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26072
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85926
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53266
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000288
AC:
32
AN:
1111492
Other (OTH)
AF:
0.0000663
AC:
4
AN:
60342
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
32
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Nov 21, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.402G>A (p.M134I) alteration is located in exon 3 (coding exon 1) of the HOXB6 gene. This alteration results from a G to A substitution at nucleotide position 402, causing the methionine (M) at amino acid position 134 to be replaced by an isoleucine (I). 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
Pathogenic
0.80
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.23
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.40
T;T
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
.;D
M_CAP
Uncertain
0.16
D
MetaRNN
Uncertain
0.65
D;D
MetaSVM
Uncertain
0.70
D
MutationAssessor
Uncertain
2.8
M;M
PhyloP100
7.5
PrimateAI
Pathogenic
0.89
D
PROVEAN
Benign
-2.3
N;N
REVEL
Uncertain
0.55
Sift
Uncertain
0.0040
D;D
Sift4G
Benign
0.18
T;T
Polyphen
0.29
B;B
Vest4
0.74
MutPred
0.30
Gain of catalytic residue at S136 (P = 0.0561);Gain of catalytic residue at S136 (P = 0.0561);
MVP
0.97
MPC
0.38
ClinPred
0.65
D
GERP RS
5.3
Varity_R
0.65
gMVP
0.71
Mutation Taster
=16/84
disease causing

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

Other links and lift over

dbSNP: rs778154907; hg19: chr17-46675111; API