Genetic Variant PCDH9:p.Pro1099Gln (chr13-66631254-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_203487.3(PCDH9):c.3296C>A(p.Pro1099Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,870 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P1099L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

PCDH9
NM_203487.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.56

Publications

0 publications found

Variant links:

Genes affected

PCDH9 (HGNC:8661): (protocadherin 9) This gene encodes a member of the protocadherin family, and cadherin superfamily, of transmembrane proteins containing cadherin domains. These proteins mediate cell adhesion in neural tissues in the presence of calcium. The encoded protein may be involved in signaling at neuronal synaptic junctions. Sharing a characteristic with other protocadherin genes, this gene has a notably large exon that encodes multiple cadherin domains and a transmembrane region. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Nov 2012]

PCDH9 links:

LOC105370247 (HGNC:):

LOC105370247 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_203487.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PCDH9	NM_203487.3	MANE Select	c.3296C>A	p.Pro1099Gln	missense	Exon 4 of 5	NP_982354.1	X5D7N0
PCDH9	NM_020403.5		c.3194C>A	p.Pro1065Gln	missense	Exon 3 of 4	NP_065136.1	Q9HC56-2
PCDH9	NM_001318372.2		c.3170C>A	p.Pro1057Gln	missense	Exon 4 of 5	NP_001305301.1	B7ZM79

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PCDH9	ENST00000377865.7	TSL:1 MANE Select	c.3296C>A	p.Pro1099Gln	missense	Exon 4 of 5	ENSP00000367096.2	Q9HC56-1
PCDH9	ENST00000544246.5	TSL:1	c.3194C>A	p.Pro1065Gln	missense	Exon 3 of 4	ENSP00000442186.2	Q9HC56-2
PCDH9	ENST00000456367.5	TSL:1	c.3170C>A	p.Pro1057Gln	missense	Exon 4 of 5	ENSP00000401699.2	B7ZM79

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1457870

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725536

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33390

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26118

East Asian (EAS)

AF:

0.00

AC:

AN:

39684

South Asian (SAS)

AF:

0.00

AC:

AN:

86206

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

9.02e-7

AC:

AN:

1108338

Other (OTH)

AF:

0.00

AC:

AN:

60240

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.52

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.10

Eigen

Pathogenic

0.83

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.97

M_CAP

Benign

0.023

MetaRNN

Uncertain

0.72

MetaSVM

Benign

-0.36

MutationAssessor

Benign

1.8

PhyloP100

9.6

PrimateAI

Pathogenic

0.86

PROVEAN

Benign

-1.9

REVEL

Uncertain

0.31

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.013

Polyphen

1.0

Vest4

0.81

MutPred

0.24

Gain of solvent accessibility (P = 0.0016)

MVP

0.57

MPC

0.96

ClinPred

0.97

GERP RS

5.5

Varity_R

0.19

gMVP

0.64

Mutation Taster

=77/23

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over