2-56192624-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001080433.2(CCDC85A):c.424G>T(p.Ala142Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,710 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CCDC85A NM_001080433.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.47

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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.33068007).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CCDC85A	NM_001080433.2	c.424G>T	p.Ala142Ser	missense_variant	2/6	ENST00000407595.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CCDC85A	ENST00000407595.3	c.424G>T	p.Ala142Ser	missense_variant	2/6	1	NM_001080433.2	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000401 AC: 1 AN: 249232 Hom.: 0 AF XY: 0.00000740 AC XY: 1 AN XY: 135208

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 SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461710 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727138

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: 0.0000116

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

Aug 17, 2022

The c.424G>T (p.A142S) alteration is located in exon 2 (coding exon 2) of the CCDC85A gene. This alteration results from a G to T substitution at nucleotide position 424, causing the alanine (A) at amino acid position 142 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	Benign	0.091
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.43
Cadd	Benign	23
Dann	Uncertain	1.0
DEOGEN2	Benign	0.0054	T
Eigen	Uncertain	0.23
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.86	D
M_CAP	Benign	0.0033	T
MetaRNN	Benign	0.33	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.95	L
MutationTaster	Benign	0.99	D;D
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	-0.78	N
REVEL	Benign	0.23
Sift	Benign	0.19	T
Sift4G	Benign	0.39	T
Polyphen		0.59	P
Vest4		0.55
MutPred		0.40		Gain of disorder (P = 0.0562);
MVP		0.23
MPC		0.38
ClinPred		0.45	T
GERP RS		5.3
Varity_R		0.084
gMVP		0.059

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Publications

LitVar

Other links and lift over

dbSNP: rs1225684148; hg19: chr2-56419759; COSMIC: COSV68147208;