2-29071387-C-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001029883.3(PCARE):c.2875G>C(p.Ala959Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000616 in 1,461,406 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A959T) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

PCARE
NM_001029883.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.679

Publications

4 publications found

Variant links:

Genes affected

PCARE (HGNC:34383): (photoreceptor cilium actin regulator) The protein encoded by this gene is highly expressed in photoreceptors and may associate with the primary cilium of the outer segment. The encoded protein appears to undergo post-translational lipid modification. Nonsense and missense variants of this gene appear to cause a recessive form of retinitis pigmentosa. [provided by RefSeq, Jun 2010]

PCARE Gene-Disease associations (from GenCC):

PCARE-related retinopathy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
retinitis pigmentosa 54
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
retinitis pigmentosa
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

PCARE links:

ENSG00000308575 (HGNC:):

ENSG00000308575 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.022877544).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PCARE	NM_001029883.3 link	c.2875G>C	p.Ala959Pro	missense_variant	Exon 1 of 2	ENST00000331664.6	NP_001025054.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein
PCARE	ENST00000331664.6 link	c.2875G>C	p.Ala959Pro	missense_variant	Exon 1 of 2	2	NM_001029883.3	ENSP00000332809.4
ENSG00000308575	ENST00000835145.1 link	n.224+2220C>G		intron_variant	Intron 2 of 2
ENSG00000308575	ENST00000835146.1 link	n.207+2220C>G		intron_variant	Intron 2 of 2
ENSG00000308575	ENST00000835147.1 link	n.171+2220C>G		intron_variant	Intron 2 of 2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000616

AC:

AN:

1461406

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727016

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53066

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00000809

AC:

AN:

1111908

Other (OTH)

AF:

0.00

AC:

AN:

60372

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.453

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.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Apr 21, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 959 of the PCARE protein (p.Ala959Pro). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with PCARE-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The proline amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.066

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.77

CADD

Benign

0.030

(source)

DANN

Benign

0.12

DEOGEN2

Benign

0.0019

Eigen

Benign

-1.7

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0098

LIST_S2

Benign

0.35

M_CAP

Benign

0.0022

MetaRNN

Benign

0.023

MetaSVM

Benign

-0.97

PhyloP100

0.68

PROVEAN

Benign

3.2

REVEL

Benign

0.020

Sift

Benign

1.0

Sift4G

Benign

1.0

Vest4

0.079

ClinPred

0.049

GERP RS

-1.3

Varity_R

0.061

gMVP

0.16

Mutation Taster

=93/7

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over