rs147046973

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_020361.5(CPA6):c.916G>A(p.Val306Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000138 in 1,614,104 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00074 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000075 ( 0 hom. )

Consequence

CPA6
NM_020361.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 7.54

Publications

0 publications found

Variant links:

Genes affected

CPA6 (HGNC:17245): (carboxypeptidase A6) The gene encodes a member of the peptidase M14 family of metallocarboxypeptidases. The encoded preproprotein is proteolytically processed to generate the mature enzyme, which catalyzes the release of large hydrophobic C-terminal amino acids. This enzyme has functions ranging from digestion of food to selective biosynthesis of neuroendocrine peptides. Mutations in this gene may be linked to epilepsy and febrile seizures, and a translocation t(6;8)(q26;q13) involving this gene has been associated with Duane retraction syndrome. [provided by RefSeq, May 2016]

CPA6 links:

ARFGEF1-DT (HGNC:55237): (ARFGEF1 divergent transcript)

ARFGEF1-DT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.013920099).

BP6

Variant 8-67434163-C-T is Benign according to our data. Variant chr8-67434163-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 472765.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CPA6	NM_020361.5 link	c.916G>A	p.Val306Ile	missense_variant	Exon 9 of 11	ENST00000297770.10	NP_065094.3	Q8N4T0-1
CPA6	XM_017013646.2 link	c.472G>A	p.Val158Ile	missense_variant	Exon 9 of 11		XP_016869135.1
ARFGEF1-DT	NR_136224.1 link	n.470-8047C>T		intron_variant	Intron 1 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CPA6	ENST00000297770.10 link	c.916G>A	p.Val306Ile	missense_variant	Exon 9 of 11	1	NM_020361.5	ENSP00000297770.4		Q8N4T0-1

Frequencies

GnomAD3 genomes

AF:

0.000723

AC:

110

AN:

152200

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00251

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000956

GnomAD2 exomes

AF:

0.000207

AC:

AN:

251484

AF XY:

0.000132

show subpopulations

Gnomad AFR exome

AF:

0.00301

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.0000753

AC:

110

AN:

1461786

Hom.:

Cov.:

AF XY:

0.0000674

AC XY:

AN XY:

727194

show subpopulations

African (AFR)

AF:

0.00293

AC:

AN:

33474

American (AMR)

AF:

0.0000894

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111952

Other (OTH)

AF:

0.000116

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

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

AF:

0.000735

AC:

112

AN:

152318

Hom.:

Cov.:

AF XY:

0.000685

AC XY:

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.00255

AC:

106

AN:

41572

American (AMR)

AF:

0.000261

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68030

Other (OTH)

AF:

0.000946

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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

Alfa

AF:

0.000296

Hom.:

Bravo

AF:

0.000790

ESP6500AA

AF:

0.00363

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000288

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial temporal lobe epilepsy 5;C3280734:Febrile seizures, familial, 11

Uncertain:1

Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

CPA6 NM_020361.4 p.Val306Ile exon 9 (c.916G>A):This variant has not been reported in the literature in individuals with disease but is present in 0.2% (104/41450) of African alleles including 1 homozygote in the Genome Aggregation Database (https://gnomad.broadinstitute.org/variant/8-67434163-C-T?dataset=gnomad_r3). This variant is present in ClinVar (Variation ID:472765). Evolutionary conservation suggests that this variant may impact the protein; computational predictive tools suggest that this variant may not impact the protein. In vitro functional studies predict that this variant will impact the protein (Sapio 2012 PMID:23105115). However, these studies may not accurately represent in vivo biological function. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

Febrile seizures, familial, 11

Benign:1

Aug 30, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.40

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0083

Eigen

Benign

0.091

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

M_CAP

Benign

0.031

MetaRNN

Benign

0.014

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

PhyloP100

7.5

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-0.26

REVEL

Benign

0.16

Sift

Uncertain

0.0080

Sift4G

Benign

0.11

Polyphen

0.13

Vest4

0.63

MVP

0.19

MPC

0.22

ClinPred

0.096

GERP RS

5.0

Varity_R

0.44

gMVP

0.68

Mutation Taster

=16/84

disease causing

(source)

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over