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GeneBe

1-15060281-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_201628.3(KAZN):c.1026C>A(p.His342Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000582 in 1,614,216 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: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

KAZN
NM_201628.3 missense

Scores

2
5
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.03
Variant links:
Genes affected
KAZN (HGNC:29173): (kazrin, periplakin interacting protein) This gene encodes a protein that plays a role in desmosome assembly, cell adhesion, cytoskeletal organization, and epidermal differentiation. This protein co-localizes with desmoplakin and the cytolinker protein periplakin. In general, this protein localizes to the nucleus, desmosomes, cell membrane, and cortical actin-based structures. Some isoforms of this protein also associate with microtubules. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Additional splice variants have been described but their biological validity has not been verified. [provided by RefSeq, Aug 2011]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29072934).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KAZNNM_201628.3 linkuse as main transcriptc.1026C>A p.His342Gln missense_variant 6/15 ENST00000376030.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KAZNENST00000376030.7 linkuse as main transcriptc.1026C>A p.His342Gln missense_variant 6/155 NM_201628.3 P2Q674X7-1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152266
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250874
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135632
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000616
AC:
90
AN:
1461832
Hom.:
0
Cov.:
32
AF XY:
0.0000660
AC XY:
48
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
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:
0.0000773
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000262
AC:
4
AN:
152384
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74516
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000378
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsOct 25, 2022The c.1026C>A (p.H342Q) alteration is located in exon 6 (coding exon 6) of the KAZN gene. This alteration results from a C to A substitution at nucleotide position 1026, causing the histidine (H) at amino acid position 342 to be replaced by a glutamine (Q). 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
Pathogenic
0.94
BayesDel_addAF
Benign
-0.012
T
BayesDel_noAF
Benign
-0.17
Cadd
Pathogenic
27
Dann
Uncertain
0.99
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.42
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.96
D;D;D;D;D;.
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.29
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D;D;D;D
PrimateAI
Pathogenic
0.86
D
Polyphen
1.0, 1.0, 0.98, 1.0
.;D;D;D;D;D
Vest4
0.69, 0.75, 0.78, 0.74, 0.75
MutPred
0.13
.;Gain of helix (P = 0.2059);Gain of helix (P = 0.2059);.;.;.;
MVP
0.39
MPC
0.91
ClinPred
0.74
D
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.47
gMVP
0.50

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: rs200438096; hg19: chr1-15386777; API