NM_020366.4:c.1797G>T

Variant names:

• chr14-21324652-G-T
• rs9322965
• NM_020366.4:c.1797G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_020366.4(RPGRIP1):​c.1797G>T​(p.Pro599Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. P599P) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: RPGRIP1 NM_020366.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.372
• Publications: 16 publications found

Genes affected

RPGRIP1 (HGNC:13436): (RPGR interacting protein 1) This gene encodes a photoreceptor protein that interacts with retinitis pigmentosa GTPase regulator protein and is a key component of cone and rod photoreceptor cells. Mutations in this gene lead to autosomal recessive congenital blindness. [provided by RefSeq, Oct 2008]

RPGRIP1 Gene-Disease associations (from GenCC):

• cone-rod dystrophy 13

  Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
• Leber congenital amaurosis 6

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• cone-rod dystrophy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Leber congenital amaurosis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (REVEL=0.133).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020366.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPGRIP1	NM_020366.4	MANE Select	c.1797G>T	p.Pro599Pro	synonymous	Exon 15 of 25	NP_065099.3
	RPGRIP1	NM_001377948.1		c.723G>T	p.Pro241Pro	synonymous	Exon 5 of 15	NP_001364877.1
	RPGRIP1	NM_001377949.1		c.723G>T	p.Pro241Pro	synonymous	Exon 5 of 13	NP_001364878.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPGRIP1	ENST00000400017.7	TSL:1 MANE Select	c.1797G>T	p.Pro599Pro	synonymous	Exon 15 of 25	ENSP00000382895.2
	RPGRIP1	ENST00000555587.5	TSL:1	c.222G>T	p.Pro74Pro	synonymous	Exon 3 of 13	ENSP00000451262.1
	RPGRIP1	ENST00000554303.1	TSL:1	c.183G>T	p.Pro61Pro	synonymous	Exon 3 of 3	ENSP00000450426.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 13494

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.85
BayesDel_noAF	Benign	-0.78
CADD	Benign	2.2
DANN	Benign	0.90
PhyloP100		-0.37

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs9322965; hg19: chr14-21792811;