chr13-57633061-C-G

Position:

• chr13-57633061-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001040429.3(PCDH17):​c.515C>G​(p.Thr172Arg) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PCDH17 NM_001040429.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.79

Genes affected

PCDH17 (HGNC:14267): (protocadherin 17) This gene belongs to the protocadherin gene family, a subfamily of the cadherin superfamily. The encoded protein contains six extracellular cadherin domains, a transmembrane domain, and a cytoplasmic tail differing from those of the classical cadherins. The encoded protein may play a role in the establishment and function of specific cell-cell connections in the brain. [provided by RefSeq, Jul 2008]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.854

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PCDH17	NM_001040429.3	c.515C>G	p.Thr172Arg	missense_variant	1/4	ENST00000377918.8
PCDH17	XM_005266357.3	c.515C>G	p.Thr172Arg	missense_variant	2/5
PCDH17	XM_047430276.1	c.515C>G	p.Thr172Arg	missense_variant	2/5
PCDH17	XM_017020547.2	c.515C>G	p.Thr172Arg	missense_variant	1/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PCDH17	ENST00000377918.8	c.515C>G	p.Thr172Arg	missense_variant	1/4	1	NM_001040429.3	P1
	ENST00000610846.1	n.515G>C		non_coding_transcript_exon_variant	1/2	4
PCDH17	ENST00000484979.5	c.515C>G	p.Thr172Arg	missense_variant, NMD_transcript_variant	1/4	1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

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

Jan 22, 2024

The c.515C>G (p.T172R) alteration is located in exon 1 (coding exon 1) of the PCDH17 gene. This alteration results from a C to G substitution at nucleotide position 515, causing the threonine (T) at amino acid position 172 to be replaced by an arginine (R). 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	0.18
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.14
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.23	T
Eigen	Uncertain	0.54
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Benign	0.85	T
M_CAP	Uncertain	0.13	D
MetaRNN	Pathogenic	0.85	D
MetaSVM	Benign	-0.86	T
MutationAssessor	Benign	1.4	L
MutationTaster	Benign	1.0	D
PrimateAI	Pathogenic	0.82	D
PROVEAN	Uncertain	-3.8	D
REVEL	Uncertain	0.35
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0070	D
Polyphen		0.99	D
Vest4		0.85
MutPred		0.61		Gain of catalytic residue at D175 (P = 0.0064);
MVP		0.83
ClinPred		0.99	D
GERP RS		5.0
Varity_R		0.75
gMVP		0.68

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

LitVar

Other links and lift over

dbSNP: rs781536747; hg19: chr13-58207195;