chr2-176171954-A-G

Position:

chr2-176171954-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP3BP4BS2

The NM_006898.5(HOXD3):c.979A>G(p.Lys327Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000219 in 1,610,922 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00022 ( 1 hom. )

Consequence

HOXD3
NM_006898.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.88

Variant links:

Genes affected

HOXD3 (HGNC:5137): (homeobox D3) 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 protein encoded by this gene may play a role in the regulation of cell adhesion processes. [provided by RefSeq, Jul 2008]

HOXD3 links:

HAGLR (HGNC:43755): (HOXD antisense growth-associated long non-coding RNA)

HAGLR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP3

Multiple lines of computational evidence support a deleterious effect 7: AlphaMissense, BayesDel_noAF, Cadd, M_CAP, phyloP100way_vertebrate, PrimateAI, REVEL [when max_spliceai, FATHMM_MKL, MetaRNN, MutationTaster was below the threshold]

BP4

Computational evidence support a benign effect (MetaRNN=0.39169246).

BS2

High AC in GnomAd4 at 27 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HOXD3	NM_006898.5 linkuse as main transcript	c.979A>G	p.Lys327Glu	missense_variant	4/4	ENST00000683222.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
HOXD3	ENST00000683222.1 linkuse as main transcript	c.979A>G	p.Lys327Glu	missense_variant	4/4		NM_006898.5	P1
HOXD3	ENST00000249440.4 linkuse as main transcript	c.979A>G	p.Lys327Glu	missense_variant	3/3	1		P1
HOXD3	ENST00000410016.5 linkuse as main transcript	c.979A>G	p.Lys327Glu	missense_variant	3/3	5		P1
HAGLR	ENST00000413969.6 linkuse as main transcript	n.406+4581T>C		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.000177

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00231

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000220

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000286

AC:

AN:

237434

Hom.:

AF XY:

0.000268

AC XY:

AN XY:

130374

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000293

Gnomad ASJ exome

AF:

0.00381

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000659

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000228

Gnomad OTH exome

AF:

0.000684

GnomAD4 exome

AF:

0.000223

AC:

325

AN:

1458572

Hom.:

Cov.:

AF XY:

0.000203

AC XY:

147

AN XY:

725660

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00360

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000179

Gnomad4 OTH exome

AF:

0.000398

GnomAD4 genome

AF:

0.000177

AC:

AN:

152350

Hom.:

Cov.:

AF XY:

0.0000939

AC XY:

AN XY:

74514

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00231

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000221

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000720

Hom.:

Bravo

AF:

0.000200

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.000232

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000417

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

Oct 21, 2021

The c.979A>G (p.K327E) alteration is located in exon 3 (coding exon 2) of the HOXD3 gene. This alteration results from a A to G substitution at nucleotide position 979, causing the lysine (K) at amino acid position 327 to be replaced by a glutamic acid (E). 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

0.87

BayesDel_addAF

Uncertain

0.053

BayesDel_noAF

Pathogenic

0.17

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.73

D;D

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.91

.;D

M_CAP

Pathogenic

0.58

MetaRNN

Benign

0.39

T;T

MetaSVM

Uncertain

0.60

MutationAssessor

Uncertain

2.6

M;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.85

PROVEAN

Uncertain

-2.6

D;D

REVEL

Pathogenic

0.79

Sift

Uncertain

0.010

D;D

Sift4G

Uncertain

0.051

T;T

Polyphen

0.99

D;D

Vest4

0.75

MVP

0.95

ClinPred

0.18

GERP RS

4.4

Varity_R

0.55

gMVP

0.68

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.

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