NM_012469.4:c.2185C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_012469.4(PRPF6):​c.2185C>T​(p.Arg729Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000089 in 1,461,402 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R729Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

PRPF6
NM_012469.4 missense

Scores

8
10
1

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 3.00

Publications

16 publications found
Variant links:
Genes affected
PRPF6 (HGNC:15860): (pre-mRNA processing factor 6) The protein encoded by this gene appears to be involved in pre-mRNA splicing, possibly acting as a bridging factor between U5 and U4/U6 snRNPs in formation of the spliceosome. The encoded protein also can bind androgen receptor, providing a link between transcriptional activation and splicing. [provided by RefSeq, Jul 2008]
PRPF6 Gene-Disease associations (from GenCC):
  • retinitis pigmentosa 60
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • 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 -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.887
BS2
High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRPF6NM_012469.4 linkc.2185C>T p.Arg729Trp missense_variant Exon 16 of 21 ENST00000266079.5 NP_036601.2 O94906-1
PRPF6XM_006723769.4 linkc.1966C>T p.Arg656Trp missense_variant Exon 15 of 20 XP_006723832.1
PRPF6XR_007067448.1 linkn.2299C>T non_coding_transcript_exon_variant Exon 16 of 20

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRPF6ENST00000266079.5 linkc.2185C>T p.Arg729Trp missense_variant Exon 16 of 21 1 NM_012469.4 ENSP00000266079.4 O94906-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000399
AC:
1
AN:
250372
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000890
AC:
13
AN:
1461402
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
726992
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44720
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:
86238
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53264
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5514
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1111996
Other (OTH)
AF:
0.00
AC:
0
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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.:
32
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Retinitis pigmentosa 60 Pathogenic:1
May 13, 2011
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

not provided Uncertain:1
Apr 12, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant disrupts the p.Arg729 amino acid residue in PRPF6. Other variant(s) that disrupt this residue have been observed in individuals with PRPF6-related conditions (Invitae), which suggests that this may be a clinically significant amino acid residue. This sequence change replaces arginine with tryptophan at codon 729 of the PRPF6 protein (p.Arg729Trp). The arginine residue is highly conserved and there is a moderate physicochemical difference between arginine and tryptophan. This variant is not present in population databases (ExAC no frequency). This variant has been observed in individual(s) with retinitis pigmentosa (PMID: 21549338). ClinVar contains an entry for this variant (Variation ID: 31089). Experimental studies have shown that this variant affects PRPF6 protein function (PMID: 21549338). 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
Pathogenic
0.73
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.25
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.91
D
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Uncertain
0.11
D
MetaRNN
Pathogenic
0.89
D
MetaSVM
Uncertain
0.12
D
MutationAssessor
Pathogenic
3.5
H
PhyloP100
3.0
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-6.3
D
REVEL
Uncertain
0.42
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0020
D
Polyphen
1.0
D
Vest4
0.95
MutPred
0.46
Loss of disorder (P = 0.0067);
MVP
0.89
MPC
1.4
ClinPred
0.97
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.76
gMVP
0.93
Mutation Taster
=18/82
disease causing (ClinVar)

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: rs387907100; hg19: chr20-62658491; COSMIC: COSV53868700; API