Genetic Variant NM_024781.3:c.272C>G (chr18-68837035-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_024781.3(CCDC102B):c.272C>G(p.Thr91Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000576 in 1,613,964 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000063 ( 0 hom. )

Consequence

CCDC102B
NM_024781.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.65

Publications

0 publications found

Variant links:

Genes affected

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

CCDC102B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC102B	NM_024781.3 link	c.272C>G	p.Thr91Ser	missense_variant	Exon 2 of 8	ENST00000360242.9	NP_079057.3	Q68D86-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC102B	ENST00000360242.9 link	c.272C>G	p.Thr91Ser	missense_variant	Exon 2 of 8	1	NM_024781.3	ENSP00000353377.5		Q68D86-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152086

Hom.:

Cov.:

show subpopulations

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000161

AC:

AN:

249100

AF XY:

0.00000740

show subpopulations

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:

0.00

Gnomad NFE exome

AF:

0.0000354

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000629

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.0000660

AC XY:

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000809

AC:

AN:

1112006

Other (OTH)

AF:

0.0000331

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152086

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74284

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41402

American (AMR)

AF:

0.00

AC:

AN:

15266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000251

Hom.:

Bravo

AF:

0.0000113

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000121

AC:

ExAC

AF:

0.0000331

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 14, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.272C>G (p.T91S) alteration is located in exon 4 (coding exon 1) of the CCDC102B gene. This alteration results from a C to G substitution at nucleotide position 272, causing the threonine (T) at amino acid position 91 to be replaced by a serine (S). 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

Pathogenic

0.94

BayesDel_addAF

Benign

-0.060

BayesDel_noAF

Benign

-0.22

CADD

Pathogenic

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.36

.;.;.;T;.;.

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.61

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.69

T;D;D;D;D;D

M_CAP

Benign

0.0099

MetaRNN

Uncertain

0.68

D;D;D;D;D;D

MetaSVM

Benign

-0.73

MutationAssessor

Uncertain

2.6

.;.;.;M;.;M

PhyloP100

5.6

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-3.8

.;.;.;D;.;.

REVEL

Benign

0.27

Sift

Pathogenic

0.0

.;.;.;D;.;.

Sift4G

Pathogenic

0.0

D;D;D;D;D;D

Polyphen

1.0

.;.;.;D;.;.

Vest4

0.81, 0.61

MutPred

0.51

Gain of phosphorylation at T91 (P = 0.0582);Gain of phosphorylation at T91 (P = 0.0582);Gain of phosphorylation at T91 (P = 0.0582);Gain of phosphorylation at T91 (P = 0.0582);Gain of phosphorylation at T91 (P = 0.0582);Gain of phosphorylation at T91 (P = 0.0582);

MVP

0.67

MPC

0.095

ClinPred

0.96

GERP RS

5.2

PromoterAI

0.0061

Neutral

(source)

Varity_R

0.81

gMVP

0.19

Mutation Taster

=72/28

polymorphism

(source)

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

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NM_024781.3:c.272C>G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over