5-138286077-T-G

Position:

• chr5-138286077-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_001790.5(CDC25C):​c.1217A>C​(p.Tyr406Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,820 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: CDC25C NM_001790.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.36

Genes affected

CDC25C (HGNC:1727): (cell division cycle 25C) This gene encodes a conserved protein that plays a key role in the regulation of cell division. The encoded protein directs dephosphorylation of cyclin B-bound CDC2 and triggers entry into mitosis. It also suppresses p53-induced growth arrest. Multiple alternatively spliced transcript variants of this gene have been described. [provided by RefSeq, Dec 2015]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.949

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CDC25C	NM_001790.5	c.1217A>C	p.Tyr406Ser	missense_variant	13/14	ENST00000323760.11	NP_001781.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CDC25C	ENST00000323760.11	c.1217A>C	p.Tyr406Ser	missense_variant	13/14	1	NM_001790.5	ENSP00000321656.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461820 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727218

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

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

Oct 09, 2024

The c.1217A>C (p.Y406S) alteration is located in exon 13 (coding exon 12) of the CDC25C gene. This alteration results from a A to C substitution at nucleotide position 1217, causing the tyrosine (Y) at amino acid position 406 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	0.95
BayesDel_addAF	Pathogenic	0.31	D
BayesDel_noAF	Pathogenic	0.21
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.63	D;.;.;D;.
Eigen	Pathogenic	0.98
Eigen_PC	Pathogenic	0.87
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Pathogenic	0.99	.;D;.;D;D
M_CAP	Uncertain	0.096	D
MetaRNN	Pathogenic	0.95	D;D;D;D;D
MetaSVM	Uncertain	0.043	D
MutationAssessor	Pathogenic	3.3	M;.;.;M;.
PrimateAI	Uncertain	0.56	T
PROVEAN	Pathogenic	-8.0	D;D;D;D;D
REVEL	Uncertain	0.60
Sift	Pathogenic	0.0	D;D;D;D;D
Sift4G	Uncertain	0.0020	D;D;D;D;D
Polyphen		1.0	D;D;D;D;D
Vest4		0.96
MutPred		0.80		Gain of disorder (P = 0.0349);.;.;Gain of disorder (P = 0.0349);.;
MVP		0.87
MPC		0.84
ClinPred		1.0	D
GERP RS		5.3
Varity_R		0.94
gMVP		0.89

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: rs1218168415; hg19: chr5-137621766;