10-96024866-T-C

Position:

• chr10-96024866-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001349008.3(CC2D2B):​c.3902T>C​(p.Ile1301Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000731 in 1,368,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 7.3e-7 (0 hom.)
• Consequence: CC2D2B NM_001349008.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.702

Genes affected

CC2D2B (HGNC:31666): (coiled-coil and C2 domain containing 2B) Predicted to be involved in non-motile cilium assembly and protein localization to ciliary transition zone. Predicted to be active in ciliary transition zone. [provided by Alliance of Genome Resources, Apr 2022]

ENTPD1-AS1 (HGNC:45203): (ENTPD1 antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15968913).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CC2D2B	NM_001349008.3	c.3902T>C	p.Ile1301Thr	missense_variant	33/35	ENST00000646931.3
ENTPD1-AS1	NR_038444.1	n.296+64400A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CC2D2B	ENST00000646931.3	c.3902T>C	p.Ile1301Thr	missense_variant	33/35		NM_001349008.3	P1
ENTPD1-AS1	ENST00000669711.1	n.300+64400A>G		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 7.31e-7 AC: 1 AN: 1368028 Hom.: 0 Cov.: 24 AF XY: 0.00 AC XY: 0 AN XY: 676062

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

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: 9.50e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 30

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 20, 2023

The c.794T>C (p.I265T) alteration is located in exon 10 (coding exon 8) of the CC2D2B gene. This alteration results from a T to C substitution at nucleotide position 794, causing the isoleucine (I) at amino acid position 265 to be replaced by a threonine (T). 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	-0.25	T
BayesDel_noAF	Benign	-0.59
CADD	Benign	17
DANN	Benign	0.73
Eigen	Benign	-0.98
Eigen_PC	Benign	-0.87
FATHMM_MKL	Benign	0.59	D
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.16	T;T
MetaSVM	Benign	-0.97	T
MutationTaster	Benign	1.0	N;N;N;N;N
PrimateAI	Benign	0.48	T
Vest4		0.11
MutPred		0.59		.;Loss of catalytic residue at I265 (P = 0.0079);
MVP		0.17
MPC		0.17
ClinPred		0.031	T
GERP RS		2.5
gMVP		0.031

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.13		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr10-97784623;