NM_024781.3:c.77G>A

Variant names:

• chr18-68836840-G-A
• rs369641939
• NM_024781.3:c.77G>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Strong BP6_Moderate

The NM_024781.3(CCDC102B):​c.77G>A​(p.Arg26His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000297 in 1,613,826 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. R26R) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000029 (0 hom.)
• Consequence: CCDC102B NM_024781.3 missense
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.132
• Publications: 2 publications found

Genes affected

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

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.029738247).
• BP6: Variant 18-68836840-G-A is Benign according to our data. Variant chr18-68836840-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2513681.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC102B	NM_024781.3	c.77G>A	p.Arg26His	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.77G>A	p.Arg26His	missense_variant	Exon 2 of 8	1	NM_024781.3	ENSP00000353377.5

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 152024 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000656

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.000208

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000481 AC: 12 AN: 249268 AF XY: 0.0000592

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000446

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000884

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000294 AC: 43 AN: 1461802 Hom.: 0 Cov.: 32 AF XY: 0.0000330 AC XY: 24 AN XY: 727204

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: 0.000781 AC: 31 AN: 39694

South Asian (SAS) AF: 0.0000696 AC: 6 AN: 86254

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: 0.00000450 AC: 5 AN: 1111958

Other (OTH) AF: 0.0000166 AC: 1 AN: 60390

GnomAD4 genome AF: 0.0000329 AC: 5 AN: 152024 Hom.: 0 Cov.: 31 AF XY: 0.0000404 AC XY: 3 AN XY: 74254

African (AFR) AF: 0.00 AC: 0 AN: 41400

American (AMR) AF: 0.0000656 AC: 1 AN: 15248

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5176

South Asian (SAS) AF: 0.000208 AC: 1 AN: 4818

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10584

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68012

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.0000403 Hom.: 0

Bravo AF: 0.0000227

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000121 AC: 1

ExAC AF: 0.0000496 AC: 6

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Benign:1

Mar 21, 2023

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.071
BayesDel_addAF	Benign	-0.47	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	2.2
DANN	Benign	0.50
DEOGEN2	Benign	0.00078	.;.;.;T;.;.
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.020	N
LIST_S2	Benign	0.65	T;T;T;T;T;T
M_CAP	Benign	0.0045	T
MetaRNN	Benign	0.030	T;T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.55	.;.;.;N;.;N
PhyloP100		-0.13
PrimateAI	Benign	0.22	T
PROVEAN	Benign	0.0	.;.;.;N;.;.
REVEL	Benign	0.035
Sift	Benign	0.15	.;.;.;T;.;.
Sift4G	Benign	0.10	T;D;T;T;D;T
Polyphen		0.0	.;.;.;B;.;.
Vest4		0.047, 0.040
MVP		0.27
MPC		0.013
ClinPred		0.015	T
GERP RS		0.39
PromoterAI		0.013	Neutral
Varity_R		0.021
gMVP		0.064
Mutation Taster		=98/2	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: rs369641939; hg19: chr18-66504077;