chr2-219172912-T-A

Variant summary

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

The NM_015680.6(CNPPD1):​c.907A>T​(p.Met303Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,459,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CNPPD1
NM_015680.6 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.498
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]

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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=0.0399158).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNPPD1NM_015680.6 linkuse as main transcriptc.907A>T p.Met303Leu missense_variant 8/8 ENST00000360507.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNPPD1ENST00000360507.10 linkuse as main transcriptc.907A>T p.Met303Leu missense_variant 8/81 NM_015680.6 P1
CNPPD1ENST00000409789.5 linkuse as main transcriptc.907A>T p.Met303Leu missense_variant 9/91 P1
CNPPD1ENST00000453038.5 linkuse as main transcriptc.907A>T p.Met303Leu missense_variant 9/92

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000402
AC:
1
AN:
248838
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134526
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000330
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1459920
Hom.:
0
Cov.:
59
AF XY:
0.00000413
AC XY:
3
AN XY:
726126
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000349
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
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 GeneticsAug 02, 2023The c.907A>T (p.M303L) alteration is located in exon 8 (coding exon 8) of the CNPPD1 gene. This alteration results from a A to T substitution at nucleotide position 907, causing the methionine (M) at amino acid position 303 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
0.077
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
0.073
DANN
Benign
0.60
DEOGEN2
Benign
0.00043
T;T;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.027
N
LIST_S2
Benign
0.083
.;T;T
M_CAP
Benign
0.0053
T
MetaRNN
Benign
0.040
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N;N;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.28
T
PROVEAN
Benign
0.070
N;N;N
REVEL
Benign
0.019
Sift
Benign
0.43
T;T;T
Sift4G
Benign
0.60
T;T;.
Polyphen
0.0
B;B;.
Vest4
0.063
MutPred
0.15
Gain of phosphorylation at S307 (P = 0.2287);Gain of phosphorylation at S307 (P = 0.2287);Gain of phosphorylation at S307 (P = 0.2287);
MVP
0.072
MPC
0.21
ClinPred
0.022
T
GERP RS
-1.8
Varity_R
0.038
gMVP
0.19

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: rs767977211; hg19: chr2-220037634; API