rs779682957

Positions:

chr12-49094433-C-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BS1_Supporting

The NM_021044.4(DHH):c.80G>A(p.Arg27Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000879 in 1,603,796 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

DHH
NM_021044.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.13

Variant links:

Genes affected

DHH (HGNC:2865): (desert hedgehog signaling molecule) This gene encodes a member of the hedgehog family. The hedgehog gene family encodes signaling molecules that play an important role in regulating morphogenesis. This protein is predicted to be made as a precursor that is autocatalytically cleaved; the N-terminal portion is soluble and contains the signalling activity while the C-terminal portion is involved in precursor processing. More importantly, the C-terminal product covalently attaches a cholesterol moiety to the N-terminal product, restricting the N-terminal product to the cell surface and preventing it from freely diffusing throughout the organism. Defects in this protein have been associated with partial gonadal dysgenesis (PGD) accompanied by minifascicular polyneuropathy. This protein may be involved in both male gonadal differentiation and perineurial development. [provided by RefSeq, May 2010]

DHH links:

LOC105369759 (HGNC:):

LOC105369759 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000046 (7/152320) while in subpopulation SAS AF= 0.000415 (2/4824). AF 95% confidence interval is 0.000073. There are 0 homozygotes in gnomad4. There are 5 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DHH	NM_021044.4 linkuse as main transcript	c.80G>A	p.Arg27Gln	missense_variant	1/3	ENST00000649637.2	NP_066382.1
LOC105369759	XR_007063295.1 linkuse as main transcript	n.392+245C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DHH	ENST00000649637.2 linkuse as main transcript	c.80G>A	p.Arg27Gln	missense_variant	1/3		NM_021044.4	ENSP00000497483	P1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152202

Hom.:

Cov.:

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:

0.000193

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000143

AC:

AN:

217350

Hom.:

AF XY:

0.000207

AC XY:

AN XY:

120502

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000187

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000184

Gnomad SAS exome

AF:

0.000614

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000107

Gnomad OTH exome

AF:

0.000546

GnomAD4 exome

AF:

0.0000923

AC:

134

AN:

1451476

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

721400

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000185

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000255

Gnomad4 SAS exome

AF:

0.000678

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000469

Gnomad4 OTH exome

AF:

0.0000668

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000948

Hom.:

Bravo

AF:

0.0000869

ExAC

AF:

0.000154

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

46,XY sex reversal 7

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 04, 2023

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 27 of the DHH protein (p.Arg27Gln). This variant is present in population databases (rs779682957, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with DHH-related conditions. ClinVar contains an entry for this variant (Variation ID: 466304). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on DHH protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.073

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.96

D;D

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.85

LIST_S2

Uncertain

0.90

.;D

M_CAP

Pathogenic

0.47

MetaRNN

Uncertain

0.46

T;T

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.5

M;M

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.73

PROVEAN

Uncertain

-2.9

.;D

REVEL

Pathogenic

0.73

Sift

Uncertain

0.0060

.;D

Sift4G

Uncertain

0.021

.;D

Polyphen

0.98

D;D

Vest4

0.42

MutPred

0.66

Gain of catalytic residue at V30 (P = 9e-04);Gain of catalytic residue at V30 (P = 9e-04);

MVP

0.99

MPC

1.8

ClinPred

0.23

GERP RS

5.2

Varity_R

0.41

gMVP

0.60

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