chr2-29061940-A-G

Position:

• chr2-29061940-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_001029883.3(PCARE):​c.*2929T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.935 in 152,246 control chromosomes in the GnomAD database, including 67,360 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.94 (67351 hom., cov: 32)
  • Exomes 𝑓: 1.0 (9 hom.)
• Consequence: PCARE NM_001029883.3 3_prime_UTR
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.498

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]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BP6: Variant 2-29061940-A-G is Benign according to our data. Variant chr2-29061940-A-G is described in ClinVar as [Benign]. Clinvar id is 335573.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.993 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PCARE	NM_001029883.3	c.*2929T>C		3_prime_UTR_variant	2/2	ENST00000331664.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PCARE	ENST00000331664.6	c.*2929T>C		3_prime_UTR_variant	2/2	2	NM_001029883.3	P1
PCARE	ENST00000602958.1	n.216T>C		non_coding_transcript_exon_variant	1/3	4

Frequencies

GnomAD3 genomes AF: 0.936 AC: 142308 AN: 152110 Hom.: 67326 Cov.: 32

Gnomad AFR AF: 0.776

Gnomad AMI AF: 1.00

Gnomad AMR AF: 0.978

Gnomad ASJ AF: 0.996

Gnomad EAS AF: 0.997

Gnomad SAS AF: 0.999

Gnomad FIN AF: 1.00

Gnomad MID AF: 0.984

Gnomad NFE AF: 0.999

Gnomad OTH AF: 0.962

GnomAD4 exome AF: 1.00 AC: 18 AN: 18 Hom.: 9 Cov.: 0 AF XY: 1.00 AC XY: 6 AN XY: 6

Gnomad4 FIN exome AF: 1.00

Gnomad4 NFE exome AF: 1.00

GnomAD4 genome AF: 0.935 AC: 142386 AN: 152228 Hom.: 67351 Cov.: 32 AF XY: 0.937 AC XY: 69761 AN XY: 74438

Gnomad4 AFR AF: 0.775

Gnomad4 AMR AF: 0.978

Gnomad4 ASJ AF: 0.996

Gnomad4 EAS AF: 0.997

Gnomad4 SAS AF: 0.999

Gnomad4 FIN AF: 1.00

Gnomad4 NFE AF: 0.999

Gnomad4 OTH AF: 0.963

Alfa AF: 0.959 Hom.: 13340

Bravo AF: 0.927

Asia WGS AF: 0.979 AC: 3406 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

-

- -

Retinitis pigmentosa Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	3.1
DANN	Benign	0.54

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: rs11683284; hg19: chr2-29284806;