2-176093057-GGGCGGCGGCGGCGGCAGCGGCGGCTGC-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP3BS1_SupportingBS2

The NM_000523.4(HOXD13):​c.186_212del​(p.Ala63_Ala71del) variant causes a inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000169 in 1,369,900 control chromosomes in the GnomAD database, including 13 homozygotes. Variant has been reported in ClinVar as Uncertain significance (β˜…).

Frequency

Genomes: 𝑓 0.00017 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00017 ( 13 hom. )

Consequence

HOXD13
NM_000523.4 inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.39
Variant links:
Genes affected
HOXD13 (HGNC:5136): (homeobox D13) 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 in a cluster on chromosome 2. Deletions that remove the entire HOXD gene cluster or the 5' end of this cluster have been associated with severe limb and genital abnormalities. Mutations in this particular gene cause synpolydactyly. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP3
Nonframeshift variant in repetitive region in NM_000523.4
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000166 (25/150892) while in subpopulation SAS AF= 0.00146 (7/4796). AF 95% confidence interval is 0.000685. There are 0 homozygotes in gnomad4. There are 16 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High Homozygotes in GnomAdExome4 at 13 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HOXD13NM_000523.4 linkuse as main transcriptc.186_212del p.Ala63_Ala71del inframe_deletion 1/2 ENST00000392539.4
HOXD13XM_011511068.3 linkuse as main transcriptc.725-1404_725-1378del intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HOXD13ENST00000392539.4 linkuse as main transcriptc.186_212del p.Ala63_Ala71del inframe_deletion 1/21 NM_000523.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000166
AC:
25
AN:
150784
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000970
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000132
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000195
Gnomad SAS
AF:
0.00146
Gnomad FIN
AF:
0.0000971
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000133
Gnomad OTH
AF:
0.000485
GnomAD3 exomes
AF:
0.00172
AC:
37
AN:
21526
Hom.:
8
AF XY:
0.00186
AC XY:
25
AN XY:
13458
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00588
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00450
Gnomad SAS exome
AF:
0.00232
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00154
Gnomad OTH exome
AF:
0.00169
GnomAD4 exome
AF:
0.000170
AC:
207
AN:
1219008
Hom.:
13
AF XY:
0.000195
AC XY:
116
AN XY:
595802
show subpopulations
Gnomad4 AFR exome
AF:
0.0000416
Gnomad4 AMR exome
AF:
0.000852
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000321
Gnomad4 SAS exome
AF:
0.000718
Gnomad4 FIN exome
AF:
0.0000974
Gnomad4 NFE exome
AF:
0.000132
Gnomad4 OTH exome
AF:
0.000320
GnomAD4 genome
AF:
0.000166
AC:
25
AN:
150892
Hom.:
0
Cov.:
33
AF XY:
0.000217
AC XY:
16
AN XY:
73666
show subpopulations
Gnomad4 AFR
AF:
0.0000967
Gnomad4 AMR
AF:
0.000132
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000196
Gnomad4 SAS
AF:
0.00146
Gnomad4 FIN
AF:
0.0000971
Gnomad4 NFE
AF:
0.000133
Gnomad4 OTH
AF:
0.000480
Alfa
AF:
0.000169
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 16, 2022The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant, c.186_212del, results in the deletion of 9 amino acid(s) of the HOXD13 protein (p.Ala63_Ala71del), but otherwise preserves the integrity of the reading frame. This variant has not been reported in the literature in individuals affected with HOXD13-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs760539494; hg19: chr2-176957785; API