rs148591757

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP6BS1

The NM_002900.3(RBP3):​c.3062C>A​(p.Ser1021Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.000333 in 1,613,982 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0016 ( 1 hom., cov: 33)
Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

RBP3
NM_002900.3 missense

Scores

2
1
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 5.66

Publications

5 publications found
Variant links:
Genes affected
RBP3 (HGNC:9921): (retinol binding protein 3) Interphotoreceptor retinol-binding protein is a large glycoprotein known to bind retinoids and found primarily in the interphotoreceptor matrix of the retina between the retinal pigment epithelium and the photoreceptor cells. It is thought to transport retinoids between the retinal pigment epithelium and the photoreceptors, a critical role in the visual process.The human IRBP gene is approximately 9.5 kbp in length and consists of four exons separated by three introns. The introns are 1.6-1.9 kbp long. The gene is transcribed by photoreceptor and retinoblastoma cells into an approximately 4.3-kilobase mRNA that is translated and processed into a glycosylated protein of 135,000 Da. The amino acid sequence of human IRBP can be divided into four contiguous homology domains with 33-38% identity, suggesting a series of gene duplication events. In the gene, the boundaries of these domains are not defined by exon-intron junctions, as might have been expected. The first three homology domains and part of the fourth are all encoded by the first large exon, which is 3,180 base pairs long. The remainder of the fourth domain is encoded in the last three exons, which are 191, 143, and approximately 740 base pairs long, respectively. [provided by RefSeq, Jul 2008]
RBP3 Gene-Disease associations (from GenCC):
  • retinitis pigmentosa 66
    Inheritance: AR Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • retinitis pigmentosa
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.33886552).
BP6
Variant 10-47353332-C-A is Benign according to our data. Variant chr10-47353332-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 195184.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0016 (244/152328) while in subpopulation AFR AF = 0.00573 (238/41568). AF 95% confidence interval is 0.00513. There are 1 homozygotes in GnomAd4. There are 112 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RBP3NM_002900.3 linkc.3062C>A p.Ser1021Tyr missense_variant Exon 2 of 4 ENST00000584701.2 NP_002891.1 P10745

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RBP3ENST00000584701.2 linkc.3062C>A p.Ser1021Tyr missense_variant Exon 2 of 4 1 NM_002900.3 ENSP00000463151.1 P10745

Frequencies

GnomAD3 genomes
AF:
0.00160
AC:
243
AN:
152210
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00572
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000414
AC:
104
AN:
251006
AF XY:
0.000302
show subpopulations
Gnomad AFR exome
AF:
0.00580
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.000815
GnomAD4 exome
AF:
0.000200
AC:
293
AN:
1461654
Hom.:
1
Cov.:
32
AF XY:
0.000165
AC XY:
120
AN XY:
727098
show subpopulations
African (AFR)
AF:
0.00705
AC:
236
AN:
33480
American (AMR)
AF:
0.000157
AC:
7
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53258
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111958
Other (OTH)
AF:
0.000712
AC:
43
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
17
33
50
66
83
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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
AF:
0.00160
AC:
244
AN:
152328
Hom.:
1
Cov.:
33
AF XY:
0.00150
AC XY:
112
AN XY:
74474
show subpopulations
African (AFR)
AF:
0.00573
AC:
238
AN:
41568
American (AMR)
AF:
0.000327
AC:
5
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68036
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
12
24
37
49
61
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000644
Hom.:
1
Bravo
AF:
0.00177

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Jan 15, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 25, 2014
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Retinitis pigmentosa 66 Uncertain:1
Jun 27, 2013
ClinVar Staff, National Center for Biotechnology Information (NCBI)
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:literature only

- -

RBP3-related disorder Benign:1
Mar 23, 2020
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_noAF
Pathogenic
0.29
CADD
Benign
23
DANN
Uncertain
0.98
DEOGEN2
Benign
0.26
T
LIST_S2
Benign
0.85
D
MetaRNN
Benign
0.34
T
PhyloP100
5.7
Sift4G
Pathogenic
0.0010
D
Vest4
0.65
gMVP
0.95

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

Other links and lift over

dbSNP: rs148591757; hg19: chr10-48386030; API