chr7-27108438-G-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_153631.3(HOXA3):​c.809C>A​(p.Pro270His) variant causes a missense change. The variant allele was found at a frequency of 0.0000576 in 1,613,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000058 ( 0 hom. )

Consequence

HOXA3
NM_153631.3 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.30
Variant links:
Genes affected
HOXA3 (HGNC:5104): (homeobox A3) 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. Three transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
HOXA-AS2 (HGNC:43745): (HOXA cluster antisense RNA 2) This gene produces a long non-coding RNA that promotes cell proliferation. This transcript may interact with enhancer of zeste homolog 2 Polycomb repressive complex to repress gene expression. [provided by RefSeq, Dec 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.35587764).
BS2
High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HOXA3NM_153631.3 linkuse as main transcriptc.809C>A p.Pro270His missense_variant 6/6 ENST00000612286.5 NP_705895.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HOXA3ENST00000612286.5 linkuse as main transcriptc.809C>A p.Pro270His missense_variant 6/62 NM_153631.3 ENSP00000484411 P1
HOXA-AS2ENST00000669815.1 linkuse as main transcriptn.81+353G>T intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152110
Hom.:
0
Cov.:
32
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:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251020
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135700
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:
0.0000529
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000582
AC:
85
AN:
1461698
Hom.:
0
Cov.:
33
AF XY:
0.0000578
AC XY:
42
AN XY:
727156
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
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:
0.0000719
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152110
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74320
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:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000102
Hom.:
0
Bravo
AF:
0.0000680
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

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 GeneticsAug 14, 2023The c.809C>A (p.P270H) alteration is located in exon 4 (coding exon 2) of the HOXA3 gene. This alteration results from a C to A substitution at nucleotide position 809, causing the proline (P) at amino acid position 270 to be replaced by a histidine (H). 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
0.21
BayesDel_addAF
Benign
-0.020
T
BayesDel_noAF
Benign
-0.090
CADD
Uncertain
23
DANN
Uncertain
0.98
DEOGEN2
Benign
0.19
T;T;T
Eigen
Uncertain
0.66
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.74
.;T;.
M_CAP
Benign
0.045
D
MetaRNN
Benign
0.36
T;T;T
MetaSVM
Uncertain
0.59
D
MutationAssessor
Benign
1.3
L;L;L
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.79
T
PROVEAN
Benign
-1.5
N;.;N
REVEL
Uncertain
0.38
Sift
Benign
0.062
T;.;T
Sift4G
Benign
0.082
T;T;T
Polyphen
1.0
D;D;D
Vest4
0.32
MVP
0.70
MPC
1.0
ClinPred
0.40
T
GERP RS
5.6
Varity_R
0.19
gMVP
0.69

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: rs141075773; hg19: chr7-27148057; API