rs782491403

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 1P and 10B. PP2BP4_StrongBP6_ModerateBS2

The NM_001363.5(DKC1):ā€‹c.1533G>Cā€‹(p.Leu511Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000833 in 1,200,792 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 5 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.0000090 ( 0 hom., 0 hem., cov: 23)
Exomes š‘“: 0.0000083 ( 0 hom. 5 hem. )

Consequence

DKC1
NM_001363.5 missense

Scores

3
14

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.163
Variant links:
Genes affected
DKC1 (HGNC:2890): (dyskerin pseudouridine synthase 1) This gene functions in two distinct complexes. It plays an active role in telomerase stabilization and maintenance, as well as recognition of snoRNAs containing H/ACA sequences which provides stability during biogenesis and assembly into H/ACA small nucleolar RNA ribonucleoproteins (snoRNPs). This gene is highly conserved and widely expressed, and may play additional roles in nucleo-cytoplasmic shuttling, DNA damage response, and cell adhesion. Mutations have been associated with X-linked dyskeratosis congenita. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DKC1. . Gene score misZ 3.3994 (greater than the threshold 3.09). GenCC has associacion of gene with Hoyeraal-Hreidarsson syndrome, DKC1-related disorder, dyskeratosis congenita, X-linked, dyskeratosis congenita.
BP4
Computational evidence support a benign effect (MetaRNN=0.06206143).
BP6
Variant X-154776855-G-C is Benign according to our data. Variant chrX-154776855-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 580161.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome4 at 5 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DKC1NM_001363.5 linkuse as main transcriptc.1533G>C p.Leu511Phe missense_variant 15/15 ENST00000369550.10 NP_001354.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DKC1ENST00000369550.10 linkuse as main transcriptc.1533G>C p.Leu511Phe missense_variant 15/151 NM_001363.5 ENSP00000358563 P2O60832-1

Frequencies

GnomAD3 genomes
AF:
0.00000898
AC:
1
AN:
111382
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33582
show subpopulations
Gnomad AFR
AF:
0.0000327
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000174
AC:
3
AN:
172170
Hom.:
0
AF XY:
0.0000171
AC XY:
1
AN XY:
58488
show subpopulations
Gnomad AFR exome
AF:
0.0000796
Gnomad AMR exome
AF:
0.00
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:
0.0000267
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000826
AC:
9
AN:
1089410
Hom.:
0
Cov.:
29
AF XY:
0.0000141
AC XY:
5
AN XY:
355554
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.0000108
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000898
AC:
1
AN:
111382
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33582
show subpopulations
Gnomad4 AFR
AF:
0.0000327
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Dyskeratosis congenita Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 09, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.075
BayesDel_addAF
Benign
-0.21
T
BayesDel_noAF
Benign
-0.35
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Benign
0.22
T
FATHMM_MKL
Benign
0.44
N
LIST_S2
Benign
0.42
T
M_CAP
Uncertain
0.12
D
MetaRNN
Benign
0.062
T
MetaSVM
Uncertain
0.067
D
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-0.41
N
REVEL
Benign
0.22
Sift
Benign
0.063
T
Sift4G
Benign
0.063
T
Polyphen
0.010
B
Vest4
0.060
MutPred
0.23
Gain of methylation at K507 (P = 0.0972);
MVP
0.79
MPC
0.25
ClinPred
0.020
T
GERP RS
2.2
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.1
Varity_R
0.070
gMVP
0.0083

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: rs782491403; hg19: chrX-154005130; API