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GeneBe

1-32203995-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_024296.5(CCDC28B):​c.281G>A​(p.Gly94Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000562 in 1,422,374 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000056 ( 0 hom. )

Consequence

CCDC28B
NM_024296.5 missense

Scores

8
8
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.75
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 Likely_benign. Variant got -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.839
BS2
High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CCDC28BNM_024296.5 linkuse as main transcriptc.281G>A p.Gly94Glu missense_variant 3/6 ENST00000373602.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CCDC28BENST00000373602.10 linkuse as main transcriptc.281G>A p.Gly94Glu missense_variant 3/61 NM_024296.5 P1Q9BUN5-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000930
AC:
2
AN:
214948
Hom.:
0
AF XY:
0.0000174
AC XY:
2
AN XY:
114976
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000347
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:
0.0000101
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000562
AC:
8
AN:
1422374
Hom.:
0
Cov.:
32
AF XY:
0.00000568
AC XY:
4
AN XY:
704284
show subpopulations
Gnomad4 AFR exome
AF:
0.0000311
Gnomad4 AMR exome
AF:
0.0000258
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:
0.00000549
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000756
ExAC
AF:
0.00000825
AC:
1

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxNov 28, 2016The G94E variant in the CCDC28B gene has not been reported previously as a pathogenic variant, nor as a benign variant, to our knowledge. The G94E variant was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. The G94E variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. This substitution occurs at a position that is conserved in mammals. In silico analysis predicts this variant is probably damaging to the protein structure/function. We interpret G94E as a variant of uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Pathogenic
0.24
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.49
T;.
Eigen
Pathogenic
0.76
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Benign
0.023
T
MetaRNN
Pathogenic
0.84
D;D
MetaSVM
Benign
-0.35
T
MutationAssessor
Uncertain
2.4
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.86
D
PROVEAN
Pathogenic
-5.9
D;D
REVEL
Uncertain
0.58
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0040
D;D
Polyphen
1.0
D;.
Vest4
0.98
MutPred
0.45
Loss of catalytic residue at E92 (P = 0.1447);Loss of catalytic residue at E92 (P = 0.1447);
MVP
0.63
MPC
1.2
ClinPred
0.98
D
GERP RS
4.6
Varity_R
0.88
gMVP
0.79

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs200163249; hg19: chr1-32669596; API