2-219173077-C-T

Variant summary

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

The NM_015680.6(CNPPD1):​c.742G>A​(p.Ala248Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,607,442 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CNPPD1
NM_015680.6 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.08
Variant links:
Genes affected
CNPPD1 (HGNC:25220): (cyclin Pas1/PHO80 domain containing 1) Predicted to enable cyclin-dependent protein serine/threonine kinase regulator activity. Predicted to be involved in regulation of cyclin-dependent protein serine/threonine kinase activity. Predicted to be integral component of membrane. Predicted to be part of cyclin-dependent protein kinase holoenzyme complex. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

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=0.14525497).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CNPPD1NM_015680.6 linkc.742G>A p.Ala248Thr missense_variant 8/8 ENST00000360507.10 NP_056495.4 Q9BV87A0A024R432

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CNPPD1ENST00000360507.10 linkc.742G>A p.Ala248Thr missense_variant 8/81 NM_015680.6 ENSP00000353698.5 Q9BV87
CNPPD1ENST00000409789.5 linkc.742G>A p.Ala248Thr missense_variant 9/91 ENSP00000386277.1 Q9BV87
CNPPD1ENST00000453038.5 linkc.742G>A p.Ala248Thr missense_variant 9/92 ENSP00000410109.1 C9JF31
CNPPD1ENST00000451647.1 linkc.823G>A p.Ala275Thr missense_variant 7/73 ENSP00000405997.1 C9J597

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152100
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
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:
0.0000123
AC:
3
AN:
243722
Hom.:
0
AF XY:
0.0000151
AC XY:
2
AN XY:
132040
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000164
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:
0.00000412
AC:
6
AN:
1455342
Hom.:
0
Cov.:
34
AF XY:
0.00000414
AC XY:
3
AN XY:
724040
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000151
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:
0.00000657
AC:
1
AN:
152100
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74292
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

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 GeneticsJun 26, 2024The c.742G>A (p.A248T) alteration is located in exon 8 (coding exon 8) of the CNPPD1 gene. This alteration results from a G to A substitution at nucleotide position 742, causing the alanine (A) at amino acid position 248 to be replaced by a threonine (T). 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
0.098
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.0038
T;T;.;.
Eigen
Benign
-0.20
Eigen_PC
Benign
-0.022
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.71
.;T;T;T
M_CAP
Benign
0.0064
T
MetaRNN
Benign
0.15
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.69
N;N;.;.
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-1.9
N;N;N;N
REVEL
Benign
0.052
Sift
Benign
0.15
T;T;T;T
Sift4G
Benign
0.22
T;T;.;T
Polyphen
0.0030
B;B;.;.
Vest4
0.16
MutPred
0.32
Gain of glycosylation at A248 (P = 0.025);Gain of glycosylation at A248 (P = 0.025);Gain of glycosylation at A248 (P = 0.025);.;
MVP
0.35
MPC
0.24
ClinPred
0.15
T
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.054
gMVP
0.53

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: rs761132057; hg19: chr2-220037799; API