rs369858688

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_ModeratePM2PP5

The NM_015692.5(CPAMD8):​c.4408-1G>A variant causes a splice acceptor change. The variant allele was found at a frequency of 0.0000041 in 1,461,870 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CPAMD8
NM_015692.5 splice_acceptor

Scores

5
1
1
Splicing: ADA: 1.000
2

Clinical Significance

Pathogenic no assertion criteria provided P:2

Conservation

PhyloP100: 6.28
Variant links:
Genes affected
CPAMD8 (HGNC:23228): (C3 and PZP like alpha-2-macroglobulin domain containing 8) This gene encodes a member of the protease inhibitor I39 (alpha-2-macroglobulin) family of proteins. These proteins are important in innate and acquired immunity. The encoded protein is membrane-associated and proteolytically processed to generate two chains. Mutations in this gene cause a form of anterior segment dysgenesis, a developmental disorder of the eye. [provided by RefSeq, May 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.010957936 fraction of the gene. Cryptic splice site detected, with MaxEntScore 4.9, offset of 8, new splice context is: ttctgtctccaaatccccAGcct. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 19-16903624-C-T is Pathogenic according to our data. Variant chr19-16903624-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 375311.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CPAMD8NM_015692.5 linkuse as main transcriptc.4408-1G>A splice_acceptor_variant ENST00000443236.7 NP_056507.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CPAMD8ENST00000443236.7 linkuse as main transcriptc.4408-1G>A splice_acceptor_variant 1 NM_015692.5 ENSP00000402505 P2Q8IZJ3-1
CPAMD8ENST00000651564.2 linkuse as main transcriptc.4408-1G>A splice_acceptor_variant ENSP00000498697 A2Q8IZJ3-2
CPAMD8ENST00000682780.1 linkuse as main transcriptc.584+78G>A intron_variant ENSP00000508109

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249494
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135366
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000410
AC:
6
AN:
1461870
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727244
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.128
Hom.:
2352
Bravo
AF:
0.00000378
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000120
AC:
1
ExAC
AF:
0.00000827
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Anterior segment dysgenesis Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingEye Genetics Research Group, Children's Medical Research InstituteMar 31, 2020- -
Anterior segment dysgenesis 8 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMJan 27, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.62
D
BayesDel_noAF
Pathogenic
0.27
CADD
Pathogenic
34
DANN
Uncertain
0.99
Eigen
Pathogenic
0.92
Eigen_PC
Pathogenic
0.70
FATHMM_MKL
Pathogenic
0.99
D
MutationTaster
Benign
1.0
D
GERP RS
3.3

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.92
SpliceAI score (max)
0.98
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.92
Position offset: -9
DS_AL_spliceai
0.98
Position offset: -1

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: rs369858688; hg19: chr19-17014434; COSMIC: COSV105356050; COSMIC: COSV105356050; API