Genetic Variant HOXD9:p.Val33Met (chr2-176122865-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_014213.4(HOXD9):c.97G>A(p.Val33Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

HOXD9
NM_014213.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.30

Publications

0 publications found

Variant links:

Genes affected

HOXD9 (HGNC:5140): (homeobox D9) 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 HOXD genes located at 2q31-2q37 chromosome regions. Deletions that removed the entire HOXD gene cluster or 5' end of this cluster have been associated with severe limb and genital abnormalities. The exact role of this gene has not been determined. [provided by RefSeq, Jul 2008]

HOXD9 links:

HOXD-AS2 (HGNC:43756): (HOXD cluster antisense RNA 2)

HOXD-AS2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HOXD9	NM_014213.4 link	c.97G>A	p.Val33Met	missense_variant	Exon 1 of 2	ENST00000249499.8	NP_055028.3	P28356

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HOXD9	ENST00000249499.8 link	c.97G>A	p.Val33Met	missense_variant	Exon 1 of 2	1	NM_014213.4	ENSP00000249499.6		P28356
HOXD-AS2	ENST00000440016.6 link	n.498-421C>T		intron_variant	Intron 2 of 3	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1444400

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

718336

African (AFR)

AF:

0.00

AC:

AN:

30808

American (AMR)

AF:

0.00

AC:

AN:

42528

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25452

East Asian (EAS)

AF:

0.00

AC:

AN:

37888

South Asian (SAS)

AF:

0.00

AC:

AN:

84494

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53054

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5716

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1104954

Other (OTH)

AF:

0.00

AC:

AN:

59506

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 30, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.97G>A (p.V33M) alteration is located in exon 1 (coding exon 1) of the HOXD9 gene. This alteration results from a G to A substitution at nucleotide position 97, causing the valine (V) at amino acid position 33 to be replaced by a methionine (M). 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

0.25

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.030

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.35

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.83

M_CAP

Pathogenic

0.75

MetaRNN

Uncertain

0.51

MetaSVM

Uncertain

0.24

MutationAssessor

Uncertain

2.0

PhyloP100

2.3

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.91

REVEL

Uncertain

0.42

Sift

Benign

0.038

Sift4G

Uncertain

0.053

Polyphen

0.91

Vest4

0.38

MutPred

0.54

Gain of disorder (P = 0.0587);

MVP

0.93

MPC

1.4

ClinPred

0.95

GERP RS

4.0

PromoterAI

0.095

Neutral

(source)

Varity_R

0.27

gMVP

0.39

Mutation Taster

=72/28

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over