10-101062687-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_030929.5(KAZALD1):​c.95C>T​(p.Pro32Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000195 in 1,541,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

KAZALD1
NM_030929.5 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.427
Variant links:
Genes affected
KAZALD1 (HGNC:25460): (Kazal type serine peptidase inhibitor domain 1) This gene encodes a secreted member of the insulin growth factor-binding protein (IGFBP) superfamily. The protein contains an insulin growth factor-binding domain in its N-terminal region, a Kazal-type serine protease inhibitor and follistatin-like domain in its central region, and an immunoglobulin-like domain in its C-terminal region. Studies of the mouse ortholog suggest that this protein may function in bone development and bone regeneration. This gene is hypomethylated and over-expressed in high-grade glioma compared to low-grade glioma, and thus the hypomethylated gene may be associated with cell proliferation and the shorter survival of patients with high-grade glioma. It is also one of numerous genes found to be deleted in a novel 5.54 Mb interstitial deletion, which is associated with multiple congenital anomalies. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.052054137).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
KAZALD1NM_030929.5 linkc.95C>T p.Pro32Leu missense_variant Exon 2 of 5 ENST00000370200.6 NP_112191.2 Q96I82-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
KAZALD1ENST00000370200.6 linkc.95C>T p.Pro32Leu missense_variant Exon 2 of 5 1 NM_030929.5 ENSP00000359219.6 Q96I82-1
KAZALD1ENST00000470106.1 linkn.44-299C>T intron_variant Intron 1 of 2 3
KAZALD1ENST00000477979.5 linkn.112+572C>T intron_variant Intron 1 of 3 3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152248
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD4 exome
AF:
0.00000144
AC:
2
AN:
1389254
Hom.:
0
Cov.:
32
AF XY:
0.00000146
AC XY:
1
AN XY:
687218
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000542
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:
0.00
GnomAD4 genome
AF:
0.00000656
AC:
1
AN:
152366
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000653
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

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Jun 10, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.95C>T (p.P32L) alteration is located in exon 2 (coding exon 1) of the KAZALD1 gene. This alteration results from a C to T substitution at nucleotide position 95, causing the proline (P) at amino acid position 32 to be replaced by a leucine (L). 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
0.10
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0030
T
Eigen
Benign
-0.49
Eigen_PC
Benign
-0.48
FATHMM_MKL
Benign
0.22
N
LIST_S2
Benign
0.61
T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.052
T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
1.7
L
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-1.4
N
REVEL
Benign
0.089
Sift
Uncertain
0.010
D
Sift4G
Uncertain
0.019
D
Polyphen
0.012
B
Vest4
0.13
MutPred
0.20
Loss of glycosylation at S33 (P = 0.0457);
MVP
0.65
MPC
0.35
ClinPred
0.79
D
GERP RS
4.8
Varity_R
0.10
gMVP
0.66

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: rs553442667; hg19: chr10-102822444; API