chr18-68836845-G-A

Variant names:

• chr18-68836845-G-A
• rs369503833
• NM_024781.3:c.82G>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_024781.3(CCDC102B):​c.82G>A​(p.Asp28Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000911 in 1,613,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000046 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000096 (0 hom.)
• Consequence: CCDC102B NM_024781.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.32
• Publications: 4 publications found

Genes affected

CCDC102B (HGNC:26295): (coiled-coil domain containing 102B)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.121750504).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC102B	NM_024781.3	c.82G>A	p.Asp28Asn	missense_variant	Exon 2 of 8	ENST00000360242.9	NP_079057.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC102B	ENST00000360242.9	c.82G>A	p.Asp28Asn	missense_variant	Exon 2 of 8	1	NM_024781.3	ENSP00000353377.5

Frequencies

GnomAD3 genomes AF: 0.0000460 AC: 7 AN: 152046 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000103

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000642 AC: 16 AN: 249306 AF XY: 0.0000591

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 FIN exome AF: 0.0000464

Gnomad NFE exome AF: 0.000115

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000958 AC: 140 AN: 1461816 Hom.: 0 Cov.: 32 AF XY: 0.0000990 AC XY: 72 AN XY: 727206

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.000128 AC: 11 AN: 86250

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53402

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.000112 AC: 125 AN: 1111974

Other (OTH) AF: 0.0000662 AC: 4 AN: 60390

GnomAD4 genome AF: 0.0000460 AC: 7 AN: 152046 Hom.: 0 Cov.: 31 AF XY: 0.0000673 AC XY: 5 AN XY: 74250

African (AFR) AF: 0.00 AC: 0 AN: 41396

American (AMR) AF: 0.00 AC: 0 AN: 15254

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5174

South Asian (SAS) AF: 0.00 AC: 0 AN: 4828

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10580

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 314

European-Non Finnish (NFE) AF: 0.000103 AC: 7 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.0000565 Hom.: 0

Bravo AF: 0.0000340

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000121 AC: 1

ExAC AF: 0.0000579 AC: 7

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.000164

EpiControl AF: 0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Nov 08, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.82G>A (p.D28N) alteration is located in exon 4 (coding exon 1) of the CCDC102B gene. This alteration results from a G to A substitution at nucleotide position 82, causing the aspartic acid (D) at amino acid position 28 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.082
BayesDel_addAF	Benign	-0.41	T
BayesDel_noAF	Benign	-0.60
CADD	Benign	18
DANN	Benign	0.64
DEOGEN2	Benign	0.0035	.;.;.;T;.;.
Eigen	Benign	-0.46
Eigen_PC	Benign	-0.60
FATHMM_MKL	Benign	0.039	N
LIST_S2	Benign	0.62	T;T;T;T;T;T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.12	T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.9	.;.;.;L;.;L
PhyloP100		1.3
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-1.3	.;.;.;N;.;.
REVEL	Benign	0.095
Sift	Benign	0.095	.;.;.;T;.;.
Sift4G	Uncertain	0.017	D;D;D;D;D;D
Polyphen		0.98	.;.;.;D;.;.
Vest4		0.074, 0.083
MVP		0.45
MPC		0.013
ClinPred		0.062	T
GERP RS		2.3
PromoterAI		0.0085	Neutral
Varity_R		0.056
gMVP		0.050
Mutation Taster		=97/3	polymorphism

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

Other links and lift over

dbSNP: rs369503833; hg19: chr18-66504082; COSMIC: COSV100102413;