Genetic Variant CPPED1:p.Gln181Lys (chr16-12704798-G-T) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_018340.3(CPPED1):c.541C>A(p.Gln181Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q181E) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CPPED1
NM_018340.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.63

Publications

0 publications found

Variant links:

Genes affected

CPPED1 (HGNC:25632): (calcineurin like phosphoesterase domain containing 1) Predicted to enable metal ion binding activity; protein serine phosphatase activity; and protein threonine phosphatase activity. Predicted to be involved in protein dephosphorylation. Located in cytosol and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

CPPED1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.871

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018340.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CPPED1	NM_018340.3	MANE Select	c.541C>A	p.Gln181Lys	missense	Exon 3 of 4	NP_060810.2	Q9BRF8-1
	CPPED1	NM_001099455.2		c.290-39683C>A		intron	N/A	NP_001092925.1	Q9BRF8-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CPPED1	ENST00000381774.9	TSL:1 MANE Select	c.541C>A	p.Gln181Lys	missense	Exon 3 of 4	ENSP00000371193.4	Q9BRF8-1
CPPED1	ENST00000433677.6	TSL:1	c.290-39683C>A		intron	N/A	ENSP00000411127.2	Q9BRF8-2
CPPED1	ENST00000898262.1		c.541C>A	p.Gln181Lys	missense	Exon 3 of 5	ENSP00000568321.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112006

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.72

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.56

Eigen

Pathogenic

0.89

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.76

M_CAP

Benign

0.054

MetaRNN

Pathogenic

0.87

MetaSVM

Uncertain

0.56

MutationAssessor

Pathogenic

3.1

PhyloP100

9.6

PrimateAI

Uncertain

0.49

PROVEAN

Uncertain

-2.6

REVEL

Uncertain

0.64

Sift

Uncertain

0.016

Sift4G

Uncertain

0.045

Polyphen

0.99

Vest4

0.75

MutPred

0.61

Gain of ubiquitination at Q181 (P = 0.0128)

MVP

0.69

MPC

0.37

ClinPred

0.98

GERP RS

5.3

Varity_R

0.88

gMVP

0.80

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over