Genetic Variant DKK1:c.244-6C>T (chr10-52314917-C-T) – ACMG Classification: Benign (-16 pts)

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_012242.4(DKK1):c.244-6C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000379 in 1,509,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

DKK1
NM_012242.4 splice_region, intron

Scores

Splicing: ADA: 0.00005080

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0220

Variant links:

Genes affected

DKK1 (HGNC:2891): (dickkopf WNT signaling pathway inhibitor 1) This gene encodes a member of the dickkopf family of proteins. Members of this family are secreted proteins characterized by two cysteine-rich domains that mediate protein-protein interactions. The encoded protein binds to the LRP6 co-receptor and inhibits beta-catenin-dependent Wnt signaling. This gene plays a role in embryonic development and may be important in bone formation in adults. Elevated expression of this gene has been observed in numerous human cancers and this protein may promote proliferation, invasion and growth in cancer cell lines. [provided by RefSeq, Sep 2017]

DKK1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BP6

Variant 10-52314917-C-T is Benign according to our data. Variant chr10-52314917-C-T is described in ClinVar as [Benign]. Clinvar id is 709695.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High AC in GnomAd4 at 331 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DKK1	NM_012242.4 link	c.244-6C>T		splice_region_variant, intron_variant	Intron 1 of 3	ENST00000373970.4	NP_036374.1	O94907I1W660

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
DKK1	ENST00000373970.4 link	c.244-6C>T	splice_region_variant, intron_variant	Intron 1 of 3	1	NM_012242.4	ENSP00000363081.3	O94907
DKK1	ENST00000467359.5 link	n.238C>T	non_coding_transcript_exon_variant	Exon 1 of 2	2
DKK1	ENST00000494277.5 link	n.-140C>T	upstream_gene_variant		5

Frequencies

GnomAD3 genomes

AF:

0.00218

AC:

331

AN:

152032

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00768

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

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:

0.000959

GnomAD3 exomes

AF:

0.000672

AC:

100

AN:

148708

Hom.:

AF XY:

0.000562

AC XY:

AN XY:

78298

show subpopulations

Gnomad AFR exome

AF:

0.00855

Gnomad AMR exome

AF:

0.000143

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:

0.00

Gnomad OTH exome

AF:

0.000256

GnomAD4 exome

AF:

0.000178

AC:

242

AN:

1357794

Hom.:

Cov.:

AF XY:

0.000152

AC XY:

101

AN XY:

663004

show subpopulations

Gnomad4 AFR exome

AF:

0.00704

Gnomad4 AMR exome

AF:

0.000196

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:

0.00

Gnomad4 OTH exome

AF:

0.000339

GnomAD4 genome

AF:

0.00218

AC:

331

AN:

152150

Hom.:

Cov.:

AF XY:

0.00208

AC XY:

155

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.00766

Gnomad4 AMR

AF:

0.000719

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:

0.000949

Alfa

AF:

0.00128

Hom.:

Bravo

AF:

0.00235

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Jul 19, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.71

CADD

Benign

9.6

DANN

Benign

0.92

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000051

dbscSNV1_RF

Benign

0.0

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