chr16-53600383-C-T

Position:

• chr16-53600383-C-T

Variant summary

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

The NM_015272.5(RPGRIP1L):​c.*1693G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.38 in 152,296 control chromosomes in the GnomAD database, including 12,765 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.38 (12762 hom., cov: 32)
  • Exomes 𝑓: 0.18 (3 hom.)
• Consequence: RPGRIP1L NM_015272.5 3_prime_UTR
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:4
• Conservation: PhyloP100: 0.161

Genes affected

RPGRIP1L (HGNC:29168): (RPGRIP1 like) The protein encoded by this gene can localize to the basal body-centrosome complex or to primary cilia and centrosomes in ciliated cells. The encoded protein has been found to interact with nephrocystin-4. Defects in this gene are a cause of Joubert syndrome type 7 (JBTS7) and Meckel syndrome type 5 (MKS5). [provided by RefSeq, Jun 2016]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.66).
• BP6: Variant 16-53600383-C-T is Benign according to our data. Variant chr16-53600383-C-T is described in ClinVar as [Benign]. Clinvar id is 319624.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.592 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RPGRIP1L	NM_015272.5	c.*1693G>A		3_prime_UTR_variant	27/27	ENST00000647211.2	NP_056087.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RPGRIP1L	ENST00000647211.2	c.*1693G>A		3_prime_UTR_variant	27/27		NM_015272.5	ENSP00000493946

Frequencies

GnomAD3 genomes AF: 0.381 AC: 57764 AN: 151734 Hom.: 12722 Cov.: 32

Gnomad AFR AF: 0.598

Gnomad AMI AF: 0.206

Gnomad AMR AF: 0.288

Gnomad ASJ AF: 0.341

Gnomad EAS AF: 0.582

Gnomad SAS AF: 0.428

Gnomad FIN AF: 0.178

Gnomad MID AF: 0.430

Gnomad NFE AF: 0.287

Gnomad OTH AF: 0.376

GnomAD4 exome AF: 0.178 AC: 79 AN: 444 Hom.: 3 Cov.: 0 AF XY: 0.181 AC XY: 49 AN XY: 270

Gnomad4 FIN exome AF: 0.181

Gnomad4 NFE exome AF: 0.143

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome AF: 0.381 AC: 57862 AN: 151852 Hom.: 12762 Cov.: 32 AF XY: 0.377 AC XY: 27937 AN XY: 74198

Gnomad4 AFR AF: 0.598

Gnomad4 AMR AF: 0.287

Gnomad4 ASJ AF: 0.341

Gnomad4 EAS AF: 0.582

Gnomad4 SAS AF: 0.428

Gnomad4 FIN AF: 0.178

Gnomad4 NFE AF: 0.287

Gnomad4 OTH AF: 0.384

Alfa AF: 0.312 Hom.: 16415

Bravo AF: 0.395

Asia WGS AF: 0.509 AC: 1774 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Joubert syndrome 7 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. -

Meckel syndrome, type 5 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. -

not provided Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

-

- -

Nephronophthisis 8 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	-0.66
CADD	Benign	11
DANN	Benign	0.84

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: rs1946155; hg19: chr16-53634295;