chr19-51225847-CCCGG-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP6_ModerateBS1BS2

The NM_001772.4(CD33):​c.466_469delGGCC​(p.Gly156fs) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0237 in 1,613,994 control chromosomes in the GnomAD database, including 576 homozygotes. Variant has been reported in ClinVar as Benign (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.016 ( 25 hom., cov: 31)
Exomes 𝑓: 0.025 ( 551 hom. )

Consequence

CD33
NM_001772.4 frameshift

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 2.86
Variant links:
Genes affected
CD33 (HGNC:1659): (CD33 molecule) Enables protein phosphatase binding activity and sialic acid binding activity. Involved in several processes, including negative regulation of cytokine production; negative regulation of monocyte activation; and positive regulation of protein tyrosine phosphatase activity. Located in several cellular components, including Golgi apparatus; external side of plasma membrane; and peroxisome. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP6
Variant 19-51225847-CCCGG-C is Benign according to our data. Variant chr19-51225847-CCCGG-C is described in ClinVar as [Benign]. Clinvar id is 3024703.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0158 (2412/152196) while in subpopulation NFE AF= 0.026 (1770/68012). AF 95% confidence interval is 0.025. There are 25 homozygotes in gnomad4. There are 1043 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 25 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CD33NM_001772.4 linkuse as main transcriptc.466_469delGGCC p.Gly156fs frameshift_variant 3/7 ENST00000262262.5 NP_001763.3 P20138-1Q546G0

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CD33ENST00000262262.5 linkuse as main transcriptc.466_469delGGCC p.Gly156fs frameshift_variant 3/71 NM_001772.4 ENSP00000262262.3 P20138-1

Frequencies

GnomAD3 genomes
AF:
0.0159
AC:
2413
AN:
152078
Hom.:
25
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00558
Gnomad AMI
AF:
0.0351
Gnomad AMR
AF:
0.0192
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000829
Gnomad FIN
AF:
0.00329
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0260
Gnomad OTH
AF:
0.0196
GnomAD3 exomes
AF:
0.0142
AC:
3561
AN:
251316
Hom.:
50
AF XY:
0.0138
AC XY:
1874
AN XY:
135814
show subpopulations
Gnomad AFR exome
AF:
0.00461
Gnomad AMR exome
AF:
0.0142
Gnomad ASJ exome
AF:
0.000894
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00101
Gnomad FIN exome
AF:
0.00333
Gnomad NFE exome
AF:
0.0244
Gnomad OTH exome
AF:
0.0178
GnomAD4 exome
AF:
0.0245
AC:
35851
AN:
1461798
Hom.:
551
AF XY:
0.0236
AC XY:
17169
AN XY:
727216
show subpopulations
Gnomad4 AFR exome
AF:
0.00332
Gnomad4 AMR exome
AF:
0.0136
Gnomad4 ASJ exome
AF:
0.00122
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000823
Gnomad4 FIN exome
AF:
0.00474
Gnomad4 NFE exome
AF:
0.0300
Gnomad4 OTH exome
AF:
0.0237
GnomAD4 genome
AF:
0.0158
AC:
2412
AN:
152196
Hom.:
25
Cov.:
31
AF XY:
0.0140
AC XY:
1043
AN XY:
74424
show subpopulations
Gnomad4 AFR
AF:
0.00557
Gnomad4 AMR
AF:
0.0191
Gnomad4 ASJ
AF:
0.00202
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000830
Gnomad4 FIN
AF:
0.00329
Gnomad4 NFE
AF:
0.0260
Gnomad4 OTH
AF:
0.0194
Alfa
AF:
0.00516
Hom.:
7
Bravo
AF:
0.0166
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.0226
EpiControl
AF:
0.0242

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

CD33-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 17, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenAug 01, 2024CD33: BS1, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs201074739; hg19: chr19-51729103; API