chr12-90971864-A-C

Variant names:

• chr12-90971864-A-C
• rs1135866
• NM_004950.5:c.638T>G

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_004950.5(EPYC):​c.638T>G​(p.Leu213Trp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,346 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: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: EPYC NM_004950.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.51
• Publications: 0 publications found

Genes affected

EPYC (HGNC:3053): (epiphycan) Dermatan sulfate proteoglycan 3 is a member of the small leucine-rich repeat proteoglycan family. This gene is composed of seven exons. It regulates fibrillogenesis by interacting with collagen fibrils and other extracellular matrix proteins. [provided by RefSeq, Jul 2008]

EPYC Gene-Disease associations (from GenCC):

• schizophrenia

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.784

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EPYC	NM_004950.5	c.638T>G	p.Leu213Trp	missense_variant	Exon 5 of 7	ENST00000261172.8	NP_004941.2
EPYC	XM_011538008.2	c.455T>G	p.Leu152Trp	missense_variant	Exon 4 of 6		XP_011536310.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EPYC	ENST00000261172.8	c.638T>G	p.Leu213Trp	missense_variant	Exon 5 of 7	1	NM_004950.5	ENSP00000261172.3
EPYC	ENST00000551767.1	c.638T>G	p.Leu213Trp	missense_variant	Exon 5 of 5	3		ENSP00000448272.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460346 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726512

African (AFR) AF: 0.00 AC: 0 AN: 33460

American (AMR) AF: 0.00 AC: 0 AN: 44370

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.00 AC: 0 AN: 39570

South Asian (SAS) AF: 0.00 AC: 0 AN: 86064

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53348

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111370

Other (OTH) AF: 0.00 AC: 0 AN: 60286

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Pathogenic	29
DANN	Benign	0.96
DEOGEN2	Uncertain	0.43	T;T
Eigen	Pathogenic	0.85
Eigen_PC	Pathogenic	0.80
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.84	T;D
M_CAP	Benign	0.040	D
MetaRNN	Pathogenic	0.78	D;D
MetaSVM	Benign	-0.53	T
MutationAssessor	Pathogenic	3.0	M;.
PhyloP100		8.5
PrimateAI	Uncertain	0.62	T
PROVEAN	Pathogenic	-4.9	D;D
REVEL	Uncertain	0.43
Sift	Uncertain	0.0010	D;D
Sift4G	Uncertain	0.0030	D;D
Polyphen		1.0	D;.
Vest4		0.82
MutPred		0.59		Gain of catalytic residue at D217 (P = 0.0134);Gain of catalytic residue at D217 (P = 0.0134);
MVP		0.82
MPC		0.14
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.69
gMVP		0.92
Mutation Taster		=59/41	polymorphism

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

Other links and lift over

dbSNP: rs1135866; hg19: chr12-91365641;