2-56193000-C-A

Position:

• chr2-56193000-C-A

Variant summary

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

The NM_001080433.2(CCDC85A):​c.800C>A​(p.Thr267Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CCDC85A NM_001080433.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.63

Genes affected

CCDC85A (HGNC:29400): (coiled-coil domain containing 85A) Located in adherens junction. [provided by Alliance of Genome Resources, Apr 2022]

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=0.20833454).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCDC85A	NM_001080433.2	c.800C>A	p.Thr267Asn	missense_variant	2/6	ENST00000407595.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CCDC85A	ENST00000407595.3	c.800C>A	p.Thr267Asn	missense_variant	2/6	1	NM_001080433.2	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461674 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 727116

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: 8.99e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

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

Jun 17, 2024

The c.800C>A (p.T267N) alteration is located in exon 2 (coding exon 2) of the CCDC85A gene. This alteration results from a C to A substitution at nucleotide position 800, causing the threonine (T) at amino acid position 267 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	0.096
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.57
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.0025	T
Eigen	Benign	-0.16
Eigen_PC	Benign	-0.038
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.69	T
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.21	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.1	L
MutationTaster	Benign	0.83	D;D
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-1.0	N
REVEL	Benign	0.076
Sift	Uncertain	0.0060	D
Sift4G	Benign	0.13	T
Polyphen		0.34	B
Vest4		0.37
MutPred		0.15		Loss of phosphorylation at T267 (P = 0.0023);
MVP		0.61
MPC		0.13
ClinPred		0.69	D
GERP RS		4.5
Varity_R		0.14
gMVP		0.13

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-56420135; COSMIC: COSV68147810;