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GeneBe

1-32204316-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_024296.5(CCDC28B):​c.462G>A​(p.Glu154=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000977 in 1,611,468 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0050 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00056 ( 13 hom. )

Consequence

CCDC28B
NM_024296.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.132
Variant links:
Genes affected
CCDC28B (HGNC:28163): (coiled-coil domain containing 28B) The product of this gene localizes to centrosomes and basal bodies. The protein colocalizes with several proteins associated with Bardet-Biedl syndrome (BBS) and participates in the regulation of cilia development. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2014]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 1-32204316-G-A is Benign according to our data. Variant chr1-32204316-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 784942.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.132 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00497 (757/152258) while in subpopulation AFR AF= 0.0173 (717/41530). AF 95% confidence interval is 0.0162. There are 2 homozygotes in gnomad4. There are 368 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 757 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC28BNM_024296.5 linkuse as main transcriptc.462G>A p.Glu154= synonymous_variant 4/6 ENST00000373602.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC28BENST00000373602.10 linkuse as main transcriptc.462G>A p.Glu154= synonymous_variant 4/61 NM_024296.5 P1Q9BUN5-1

Frequencies

GnomAD3 genomes
AF:
0.00497
AC:
756
AN:
152140
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0173
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00164
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00526
GnomAD3 exomes
AF:
0.00145
AC:
359
AN:
247868
Hom.:
1
AF XY:
0.000985
AC XY:
132
AN XY:
133960
show subpopulations
Gnomad AFR exome
AF:
0.0186
Gnomad AMR exome
AF:
0.00132
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000332
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000357
Gnomad OTH exome
AF:
0.00116
GnomAD4 exome
AF:
0.000561
AC:
818
AN:
1459210
Hom.:
13
Cov.:
32
AF XY:
0.000460
AC XY:
334
AN XY:
725836
show subpopulations
Gnomad4 AFR exome
AF:
0.0198
Gnomad4 AMR exome
AF:
0.00126
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000349
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.00129
GnomAD4 genome
AF:
0.00497
AC:
757
AN:
152258
Hom.:
2
Cov.:
32
AF XY:
0.00494
AC XY:
368
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.0173
Gnomad4 AMR
AF:
0.00163
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00521
Alfa
AF:
0.00157
Hom.:
2
Bravo
AF:
0.00575
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMar 29, 2022- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeApr 10, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
5.5
DANN
Benign
0.84
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.6

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs6697820; hg19: chr1-32669917; API