6-125298808-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_016063.3(HDDC2):​c.215G>A​(p.Arg72His) variant causes a missense change. The variant allele was found at a frequency of 0.0000192 in 1,612,454 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

HDDC2
NM_016063.3 missense

Scores

9
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.92
Variant links:
Genes affected
HDDC2 (HGNC:21078): (HD domain containing 2) Predicted to enable 5'-deoxynucleotidase activity. Predicted to be involved in dephosphorylation. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.38611147).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
HDDC2NM_016063.3 linkuse as main transcriptc.215G>A p.Arg72His missense_variant 3/6 ENST00000398153.7 NP_057147.2 Q7Z4H3-1A0A140VJK7
HDDC2XM_024446450.2 linkuse as main transcriptc.68G>A p.Arg23His missense_variant 4/7 XP_024302218.1
HDDC2XM_047418850.1 linkuse as main transcriptc.215G>A p.Arg72His missense_variant 3/5 XP_047274806.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
HDDC2ENST00000398153.7 linkuse as main transcriptc.215G>A p.Arg72His missense_variant 3/61 NM_016063.3 ENSP00000381220.1 Q7Z4H3-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152132
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000281
AC:
7
AN:
249452
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135340
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
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:
0.0000177
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1460322
Hom.:
0
Cov.:
30
AF XY:
0.0000206
AC XY:
15
AN XY:
726620
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152132
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74308
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.0000165
AC:
2
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 submitterclinical testingAmbry GeneticsJul 09, 2024The c.215G>A (p.R72H) alteration is located in exon 3 (coding exon 3) of the HDDC2 gene. This alteration results from a G to A substitution at nucleotide position 215, causing the arginine (R) at amino acid position 72 to be replaced by a histidine (H). 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
0.26
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.31
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.093
T;T;T
Eigen
Uncertain
0.32
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.94
D;D;D
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.39
T;T;T
MetaSVM
Benign
-0.87
T
MutationAssessor
Uncertain
2.7
.;M;.
PrimateAI
Uncertain
0.50
T
PROVEAN
Uncertain
-3.3
.;D;.
REVEL
Benign
0.23
Sift
Benign
0.033
.;D;.
Sift4G
Uncertain
0.0050
D;D;D
Polyphen
0.16
.;B;.
Vest4
0.41
MutPred
0.63
Loss of MoRF binding (P = 0.0223);Loss of MoRF binding (P = 0.0223);Loss of MoRF binding (P = 0.0223);
MVP
0.69
MPC
0.20
ClinPred
0.83
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.42
gMVP
0.52

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs771303858; hg19: chr6-125619954; COSMIC: COSV100600228; COSMIC: COSV100600228; API