Genetic Variant CCDC60:p.Thr2Ile (chr12-119335181-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_178499.5(CCDC60):c.5C>T(p.Thr2Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000935 in 1,604,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 30)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

CCDC60
NM_178499.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.683

Publications

0 publications found

Variant links:

Genes affected

CCDC60 (HGNC:28610): (coiled-coil domain containing 60)

CCDC60 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.17239791).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC60	NM_178499.5 link	c.5C>T	p.Thr2Ile	missense_variant	Exon 1 of 14	ENST00000327554.3	NP_848594.2	Q8IWA6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC60	ENST00000327554.3 link	c.5C>T	p.Thr2Ile	missense_variant	Exon 1 of 14	1	NM_178499.5	ENSP00000333374.2		Q8IWA6

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152132

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:

0.000193

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000206

AC:

AN:

242360

AF XY:

0.0000229

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000115

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000173

GnomAD4 exome

AF:

0.00000895

AC:

AN:

1452544

Hom.:

Cov.:

AF XY:

0.00000830

AC XY:

AN XY:

722478

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32918

American (AMR)

AF:

0.00

AC:

AN:

42826

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25910

East Asian (EAS)

AF:

0.000204

AC:

AN:

39126

South Asian (SAS)

AF:

0.0000475

AC:

AN:

84296

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53328

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1108354

Other (OTH)

AF:

0.0000167

AC:

AN:

60032

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.402

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152132

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74322

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41424

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.000207

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2088

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000203), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 30, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.5C>T (p.T2I) alteration is located in exon 1 (coding exon 1) of the CCDC60 gene. This alteration results from a C to T substitution at nucleotide position 5, causing the threonine (T) at amino acid position 2 to be replaced by an isoleucine (I). 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

0.21

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.29

CADD

Benign

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.0035

.;T;.

Eigen

Uncertain

0.20

Eigen_PC

Benign

0.19

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.53

T;T;T

M_CAP

Benign

0.026

MetaRNN

Benign

0.17

T;T;T

MetaSVM

Benign

-0.74

MutationAssessor

Benign

1.4

.;L;.

PhyloP100

0.68

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-3.2

D;N;D

REVEL

Benign

0.13

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.97

.;D;.

Vest4

0.098

MutPred

0.25

Loss of glycosylation at T2 (P = 0.0096);Loss of glycosylation at T2 (P = 0.0096);Loss of glycosylation at T2 (P = 0.0096);

MVP

0.43

MPC

0.27

ClinPred

0.78

GERP RS

4.0

PromoterAI

0.00020

Neutral

(source)

Varity_R

0.11

gMVP

0.24

Mutation Taster

=80/20

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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12-119335181-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over