2-176189816-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_024501.3(HOXD1):​c.661G>T​(p.Ala221Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,138 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

HOXD1
NM_024501.3 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.434
Variant links:
Genes affected
HOXD1 (HGNC:5132): (homeobox D1) This gene is a member of the Antp homeobox family and encodes a protein with a homeobox DNA-binding domain. This nuclear protein functions as a sequence-specific transcription factor that is involved in differentiation and limb development. Mutations in this gene have been associated with severe developmental defects on the anterior-posterior (a-p) limb axis. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.048677027).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HOXD1NM_024501.3 linkc.661G>T p.Ala221Ser missense_variant 2/2 ENST00000331462.6 NP_078777.1 Q9GZZ0Q96CA4
HOXD1XM_047444086.1 linkc.794G>T p.Arg265Leu missense_variant 3/3 XP_047300042.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HOXD1ENST00000331462.6 linkc.661G>T p.Ala221Ser missense_variant 2/21 NM_024501.3 ENSP00000328598.4 Q9GZZ0

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152138
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
33
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152138
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74300
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

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 GeneticsNov 15, 2024The c.661G>T (p.A221S) alteration is located in exon 2 (coding exon 2) of the HOXD1 gene. This alteration results from a G to T substitution at nucleotide position 661, causing the alanine (A) at amino acid position 221 to be replaced by a serine (S). 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
0.075
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
0.21
DANN
Benign
0.76
DEOGEN2
Benign
0.038
T
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.80
FATHMM_MKL
Benign
0.39
N
LIST_S2
Benign
0.19
T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.049
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.17
N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.010
N
REVEL
Benign
0.19
Sift
Benign
1.0
T
Sift4G
Benign
0.92
T
Polyphen
0.0080
B
Vest4
0.041
MVP
0.83
ClinPred
0.027
T
GERP RS
0.83
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.047
gMVP
0.25

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: rs1206415073; hg19: chr2-177054544; API