chr7-27199426-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000522.5(HOXA13):​c.652G>A​(p.Ala218Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,570 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HOXA13
NM_000522.5 missense

Scores

3
16

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 0.725
Variant links:
Genes affected
HOXA13 (HGNC:5102): (homeobox A13) In vertebrates, the genes encoding the class of transcription factors called homeobox genes are found in clusters named A, B, C, and D on four separate chromosomes. Expression of these proteins is spatially and temporally regulated during embryonic development. This gene is part of the A cluster on chromosome 7 and encodes a DNA-binding transcription factor which may regulate gene expression, morphogenesis, and differentiation. Expansion of a polyalanine tract in the encoded protein can cause hand-foot-uterus syndrome, also known as hand-foot-genital syndrome. [provided by RefSeq, Jul 2008]
HOTTIP (HGNC:37461): (HOXA distal transcript antisense RNA) This gene produces a long RNA in antisense to the HOXA gene cluster. This transcript may regulate expression of HOXA genes in cis. This gene is upregulated in tumors and is implicated in the promotion of cell proliferation. [provided by RefSeq, Dec 2017]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.090197384).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HOXA13NM_000522.5 linkuse as main transcriptc.652G>A p.Ala218Thr missense_variant 1/2 ENST00000649031.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HOXA13ENST00000649031.1 linkuse as main transcriptc.652G>A p.Ala218Thr missense_variant 1/2 NM_000522.5 P1
HOTTIPENST00000421733.1 linkuse as main transcriptn.167+685C>T intron_variant, non_coding_transcript_variant 5
HOTTIPENST00000605136.6 linkuse as main transcriptn.86+96C>T intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248486
Hom.:
0
AF XY:
0.00000741
AC XY:
1
AN XY:
135026
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:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461570
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727106
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

HOXA13-related disorder Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 28, 2024The HOXA13 c.652G>A variant is predicted to result in the amino acid substitution p.Ala218Thr. To our knowledge, this variant has not been reported in the literature or in any of the major ethnicities listed in a large population database. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.55
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.12
T;T
Eigen
Benign
-0.25
Eigen_PC
Benign
-0.090
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Benign
0.74
.;T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.090
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.2
L;L
MutationTaster
Benign
0.78
N
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-0.89
.;N
REVEL
Benign
0.085
Sift
Benign
0.13
.;T
Sift4G
Benign
0.30
.;T
Polyphen
0.025
B;B
Vest4
0.072
MutPred
0.22
Gain of phosphorylation at A218 (P = 0.032);Gain of phosphorylation at A218 (P = 0.032);
MVP
0.47
ClinPred
0.31
T
GERP RS
4.1
Varity_R
0.12
gMVP
0.55

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.

Other links and lift over

dbSNP: rs748814782; hg19: chr7-27239045; API