chr7-27129538-C-A

Position:

chr7-27129538-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_002141.5(HOXA4):c.650G>T(p.Arg217Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000929 in 1,613,788 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: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000095 ( 0 hom. )

Consequence

HOXA4
NM_002141.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.88

Variant links:

Genes affected

HOXA4 (HGNC:5105): (homeobox A4) 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. [provided by RefSeq, Jul 2008]

HOXA4 links:

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]

HOXA3 links:

ENSG00000273433 (HGNC:):

ENSG00000273433 links:

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]

HOXA-AS2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.905

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HOXA4	NM_002141.5 link	c.650G>T	p.Arg217Leu	missense_variant	2/2	ENST00000360046.10	NP_002132.3	Q00056
HOXA3	NM_153631.3 link	c.-389-2468G>T		intron_variant		ENST00000612286.5	NP_705895.1	O43365A4D182A0A024RA33B3KPN8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HOXA4	ENST00000360046.10 link	c.650G>T	p.Arg217Leu	missense_variant	2/2	1	NM_002141.5	ENSP00000353151.5		Q00056
HOXA3	ENST00000612286.5 link	c.-389-2468G>T		intron_variant		2	NM_153631.3	ENSP00000484411.1		O43365

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152070

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.000478

GnomAD3 exomes

AF:

0.0000517

AC:

AN:

251316

Hom.:

AF XY:

0.0000663

AC XY:

AN XY:

135846

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

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:

0.0000703

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000951

AC:

139

AN:

1461718

Hom.:

Cov.:

AF XY:

0.0000894

AC XY:

AN XY:

727170

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

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:

0.000116

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152070

Hom.:

Cov.:

AF XY:

0.0000943

AC XY:

AN XY:

74264

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.000478

Alfa

AF:

0.0000161

Hom.:

Bravo

AF:

0.0000680

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

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 submitter

clinical testing

Ambry Genetics

Jun 22, 2021

The c.650G>T (p.R217L) alteration is located in exon 2 (coding exon 2) of the HOXA4 gene. This alteration results from a G to T substitution at nucleotide position 650, causing the arginine (R) at amino acid position 217 to be replaced by a leucine (L). 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

0.99

BayesDel_addAF

Pathogenic

0.39

BayesDel_noAF

Pathogenic

0.57

CADD

Pathogenic

DANN

Benign

0.96

DEOGEN2

Pathogenic

0.93

D;D;D

Eigen

Pathogenic

0.99

Eigen_PC

Pathogenic

0.90

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

.;.;D

M_CAP

Uncertain

0.16

MetaRNN

Pathogenic

0.90

D;D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.2

H;H;H

PrimateAI

Pathogenic

0.81

PROVEAN

Pathogenic

-6.9

.;D;D

REVEL

Pathogenic

0.90

Sift

Pathogenic

0.0

.;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;D

Vest4

0.87

MutPred

0.49

Gain of ubiquitination at K216 (P = 0.0185);Gain of ubiquitination at K216 (P = 0.0185);Gain of ubiquitination at K216 (P = 0.0185);

MVP

0.98

MPC

1.6

ClinPred

0.93

GERP RS

5.3

Varity_R

0.87

gMVP

0.70

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.26

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.26

Position offset: -29

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over