22-29137375-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000400335.9(KREMEN1):​c.665C>T​(p.Ala222Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000437 in 1,371,694 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000044 ( 0 hom. )

Consequence

KREMEN1
ENST00000400335.9 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.50
Variant links:
Genes affected
KREMEN1 (HGNC:17550): (kringle containing transmembrane protein 1) This gene encodes a high-affinity dickkopf homolog 1 (DKK1) transmembrane receptor that functionally cooperates with DKK1 to block wingless (WNT)/beta-catenin signaling. The encoded protein is a component of a membrane complex that modulates canonical WNT signaling through lipoprotein receptor-related protein 6 (LRP6). It contains extracellular kringle, WSC, and CUB domains. Mutations in this gene result in ectodermal dysplasia. This protein has also been found to be a functional receptor for Coxsackievirus A10 and may be an alternative entry receptor for SARS-CoV-2. [provided by RefSeq, Nov 2021]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.21999764).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
KREMEN1NM_001039570.3 linkuse as main transcriptc.665C>T p.Ala222Val missense_variant 6/9 ENST00000400335.9 NP_001034659.2 Q96MU8-3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
KREMEN1ENST00000400335.9 linkuse as main transcriptc.665C>T p.Ala222Val missense_variant 6/91 NM_001039570.3 ENSP00000383189.4 Q96MU8-3
KREMEN1ENST00000407188.5 linkuse as main transcriptc.659C>T p.Ala220Val missense_variant 6/91 ENSP00000385431.1 Q96MU8-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000509
AC:
1
AN:
196380
Hom.:
0
AF XY:
0.00000954
AC XY:
1
AN XY:
104850
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000612
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000437
AC:
6
AN:
1371694
Hom.:
0
Cov.:
31
AF XY:
0.00000298
AC XY:
2
AN XY:
671616
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000261
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000283
Gnomad4 OTH exome
AF:
0.0000356
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.0000113
ExAC
AF:
0.00000829
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 18, 2024The c.665C>T (p.A222V) alteration is located in exon 6 (coding exon 6) of the KREMEN1 gene. This alteration results from a C to T substitution at nucleotide position 665, causing the alanine (A) at amino acid position 222 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
0.13
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.46
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.12
.;.;T
Eigen
Benign
0.12
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.92
D;D;D
M_CAP
Benign
0.0075
T
MetaRNN
Benign
0.22
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.9
.;.;M
MutationTaster
Benign
0.78
D;D;D;D
PrimateAI
Uncertain
0.55
T
PROVEAN
Uncertain
-2.5
N;D;D
REVEL
Benign
0.071
Sift
Uncertain
0.019
D;D;D
Sift4G
Benign
0.18
T;T;T
Polyphen
0.14
B;B;B
Vest4
0.49
MutPred
0.55
.;.;Loss of disorder (P = 0.1582);
MVP
0.31
MPC
0.25
ClinPred
0.76
D
GERP RS
5.1
Varity_R
0.27
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs750807951; hg19: chr22-29533363; API