1-207321863-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate

The ENST00000367064.9(CD55):​c.98G>A​(p.Trp33Ter) variant causes a stop gained, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000584 in 1,370,064 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 predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000058 ( 0 hom. )

Consequence

CD55
ENST00000367064.9 stop_gained, splice_region

Scores

1
6
Splicing: ADA: 0.00002263
2

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: -1.27
Variant links:
Genes affected
CD55 (HGNC:2665): (CD55 molecule (Cromer blood group)) This gene encodes a glycoprotein involved in the regulation of the complement cascade. Binding of the encoded protein to complement proteins accelerates their decay, thereby disrupting the cascade and preventing damage to host cells. Antigens present on this protein constitute the Cromer blood group system (CROM). Alternative splicing results in multiple transcript variants. The predominant transcript variant encodes a membrane-bound protein, but alternatively spliced transcripts may produce soluble proteins. [provided by RefSeq, Jul 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 15 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 1-207321863-G-A is Pathogenic according to our data. Variant chr1-207321863-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 3338382.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CD55NM_000574.5 linkuse as main transcriptc.98G>A p.Trp33Ter stop_gained, splice_region_variant 1/10 ENST00000367064.9 NP_000565.1
LOC107985251XR_007066838.1 linkuse as main transcriptn.267C>T non_coding_transcript_exon_variant 1/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CD55ENST00000367064.9 linkuse as main transcriptc.98G>A p.Trp33Ter stop_gained, splice_region_variant 1/101 NM_000574.5 ENSP00000356031 P2P08174-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000584
AC:
8
AN:
1370064
Hom.:
0
Cov.:
30
AF XY:
0.00000296
AC XY:
2
AN XY:
675462
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:
0.00000747
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Protein-losing enteropathy Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingMVZ Medizinische Genetik MainzJul 11, 2024ACMG Criteria: PVS1,PM2_SUP,PM3_SUP,PP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Benign
-0.26
CADD
Pathogenic
30
DANN
Benign
0.92
Eigen
Benign
-0.35
Eigen_PC
Benign
-0.78
FATHMM_MKL
Benign
0.069
N
MutationTaster
Benign
1.0
A;A;A;A;A;A;A;A
Vest4
0.63
ClinPred
0.95
D
GERP RS
-5.3
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.2

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000023
dbscSNV1_RF
Benign
0.058
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-207495208; API