Variant 6-125292903-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016063.3(HDDC2):c.316A>G(p.Met106Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000155 in 1,610,934 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

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

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

HDDC2
NM_016063.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.84

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]

HDDC2 links:

HDDC2 (HGNC:):

HDDC2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HDDC2	NM_016063.3 linkuse as main transcript	c.316A>G	p.Met106Val	missense_variant	4/6	ENST00000398153.7	NP_057147.2	Q7Z4H3-1A0A140VJK7
HDDC2	XM_024446450.2 linkuse as main transcript	c.169A>G	p.Met57Val	missense_variant	5/7		XP_024302218.1
HDDC2	XM_047418850.1 linkuse as main transcript	c.316A>G	p.Met106Val	missense_variant	4/5		XP_047274806.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HDDC2	ENST00000398153.7 linkuse as main transcript	c.316A>G	p.Met106Val	missense_variant	4/6	1	NM_016063.3	ENSP00000381220.1		Q7Z4H3-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000681

AC:

AN:

249458

Hom.:

AF XY:

0.0000517

AC XY:

AN XY:

135340

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000463

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:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000165

AC:

AN:

1458714

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

725990

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000361

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

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

Alfa

AF:

0.0000936

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000414

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

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

Nov 11, 2024

The c.316A>G (p.M106V) alteration is located in exon 4 (coding exon 4) of the HDDC2 gene. This alteration results from a A to G substitution at nucleotide position 316, causing the methionine (M) at amino acid position 106 to be replaced by a valine (V). 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

0.21

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.17

Eigen

Benign

0.095

Eigen_PC

Benign

0.20

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.75

M_CAP

Benign

0.017

MetaRNN

Uncertain

0.43

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.9

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-3.2

REVEL

Benign

0.19

Sift

Benign

0.059

Sift4G

Uncertain

0.0070

Polyphen

0.21

Vest4

0.73

MutPred

0.48

Gain of methylation at K107 (P = 0.0158);

MVP

0.29

MPC

0.27

ClinPred

0.19

GERP RS

4.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.22

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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