17-48529762-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_002144.4(HOXB1):​c.691G>A​(p.Ala231Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000000686 in 1,457,546 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

HOXB1
NM_002144.4 missense

Scores

11
6
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.16
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.833

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HOXB1NM_002144.4 linkc.691G>A p.Ala231Thr missense_variant Exon 2 of 2 ENST00000239174.7 NP_002135.2 P14653-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HOXB1ENST00000239174.7 linkc.691G>A p.Ala231Thr missense_variant Exon 2 of 2 1 NM_002144.4 ENSP00000355140.5 P14653-1
HOXB1ENST00000577092 linkc.*444G>A 3_prime_UTR_variant Exon 1 of 1 ENSP00000459066.1 P14653-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.86e-7
AC:
1
AN:
1457546
Hom.:
0
Cov.:
34
AF XY:
0.00000138
AC XY:
1
AN XY:
725290
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
May 05, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.691G>A (p.A231T) alteration is located in exon 2 (coding exon 2) of the HOXB1 gene. This alteration results from a G to A substitution at nucleotide position 691, causing the alanine (A) at amino acid position 231 to be replaced by a threonine (T). 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
Uncertain
0.44
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.15
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.79
D;D
Eigen
Uncertain
0.65
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.87
.;D
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.83
D;D
MetaSVM
Pathogenic
0.94
D
MutationAssessor
Benign
0.14
N;N
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-3.6
D;.
REVEL
Pathogenic
0.68
Sift
Pathogenic
0.0
D;.
Sift4G
Pathogenic
0.0
D;.
Polyphen
1.0
D;D
Vest4
0.65
MutPred
0.45
Gain of methylation at K226 (P = 0.0584);Gain of methylation at K226 (P = 0.0584);
MVP
0.93
MPC
1.2
ClinPred
1.0
D
GERP RS
5.3
Varity_R
0.81
gMVP
0.54

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr17-46607124; API