7-27165162-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_152739.4(HOXA9):​c.296C>T​(p.Ala99Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000313 in 1,596,466 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

HOXA9
NM_152739.4 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.43
Variant links:
Genes affected
HOXA9 (HGNC:5109): (homeobox A9) 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. This gene is highly similar to the abdominal-B (Abd-B) gene of Drosophila. A specific translocation event which causes a fusion between this gene and the NUP98 gene has been associated with myeloid leukemogenesis. Read-through transcription exists between this gene and the upstream homeobox A10 (HOXA10) gene.[provided by RefSeq, Mar 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.412333).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HOXA9NM_152739.4 linkuse as main transcriptc.296C>T p.Ala99Val missense_variant 1/2 ENST00000343483.7
HOXA10-HOXA9NR_037940.1 linkuse as main transcriptn.617-195C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HOXA9ENST00000343483.7 linkuse as main transcriptc.296C>T p.Ala99Val missense_variant 1/21 NM_152739.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152078
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000446
AC:
1
AN:
224292
Hom.:
0
AF XY:
0.00000809
AC XY:
1
AN XY:
123594
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:
0.0000100
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000138
AC:
2
AN:
1444388
Hom.:
0
Cov.:
32
AF XY:
0.00000139
AC XY:
1
AN XY:
717032
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000235
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:
9.06e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152078
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74270
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189

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 submitterclinical testingAmbry GeneticsJan 19, 2022The c.296C>T (p.A99V) alteration is located in exon 1 (coding exon 1) of the HOXA9 gene. This alteration results from a C to T substitution at nucleotide position 296, causing the alanine (A) at amino acid position 99 to be replaced by a valine (V). 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
0.11
BayesDel_addAF
Uncertain
0.044
T
BayesDel_noAF
Benign
-0.17
CADD
Uncertain
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.42
T;.
Eigen
Benign
0.14
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.79
T;T
M_CAP
Benign
0.082
D
MetaRNN
Benign
0.41
T;T
MetaSVM
Uncertain
0.34
D
MutationAssessor
Benign
1.5
L;.
MutationTaster
Benign
0.99
D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-1.2
N;N
REVEL
Benign
0.28
Sift
Benign
0.071
T;D
Sift4G
Uncertain
0.060
T;T
Polyphen
0.44
B;.
Vest4
0.49
MutPred
0.56
Gain of catalytic residue at A99 (P = 0.0071);Gain of catalytic residue at A99 (P = 0.0071);
MVP
0.96
MPC
0.45
ClinPred
0.51
D
GERP RS
3.6
Varity_R
0.095
gMVP
0.18

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: rs1000950303; hg19: chr7-27204781; COSMIC: COSV58655859; COSMIC: COSV58655859; API