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GeneBe

8-67422698-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_020361.5(CPA6):c.1127-7C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000224 in 1,427,978 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000022 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CPA6
NM_020361.5 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0002176
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.606
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]

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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 (BayesDel_noAF=-0.35).
BP6
Variant 8-67422698-G-A is Benign according to our data. Variant chr8-67422698-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 794338.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CPA6NM_020361.5 linkuse as main transcriptc.1127-7C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000297770.10
ARFGEF1-DTNR_136224.1 linkuse as main transcriptn.470-19512G>A intron_variant, non_coding_transcript_variant
CPA6XM_017013646.2 linkuse as main transcriptc.683-7C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CPA6ENST00000297770.10 linkuse as main transcriptc.1127-7C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_020361.5 P1Q8N4T0-1

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
149698
Hom.:
0
Cov.:
32
FAILED QC
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000224
AC:
32
AN:
1427978
Hom.:
0
Cov.:
29
AF XY:
0.0000254
AC XY:
18
AN XY:
710006
show subpopulations
Gnomad4 AFR exome
AF:
0.000128
Gnomad4 AMR exome
AF:
0.000159
Gnomad4 ASJ exome
AF:
0.0000403
Gnomad4 EAS exome
AF:
0.0000254
Gnomad4 SAS exome
AF:
0.0000370
Gnomad4 FIN exome
AF:
0.0000190
Gnomad4 NFE exome
AF:
0.0000146
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
149698
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
73004
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
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: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Febrile seizures, familial, 11 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeAug 23, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.35
Cadd
Benign
8.5
Dann
Benign
0.77

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00022
dbscSNV1_RF
Benign
0.0020
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: rs879134727; hg19: chr8-68334933; API