21-43793321-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003683.6(RRP1):​c.277C>T​(p.His93Tyr) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000274 in 1,461,738 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

RRP1
NM_003683.6 missense, splice_region

Scores

1
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.65
Variant links:
Genes affected
RRP1 (HGNC:18785): (ribosomal RNA processing 1) The protein encoded by this gene is the putative homolog of the yeast ribosomal RNA processing protein RRP1. The encoded protein is involved in the late stages of nucleologenesis at the end of mitosis, and may be required for the generation of 28S rRNA. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RRP1NM_003683.6 linkc.277C>T p.His93Tyr missense_variant, splice_region_variant 4/13 ENST00000497547.2 NP_003674.1 P56182
RRP1XM_017028485.3 linkc.277C>T p.His93Tyr missense_variant, splice_region_variant 4/13 XP_016883974.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RRP1ENST00000497547.2 linkc.277C>T p.His93Tyr missense_variant, splice_region_variant 4/131 NM_003683.6 ENSP00000417464.1 P56182

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000802
AC:
2
AN:
249288
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135280
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000580
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000274
AC:
4
AN:
1461738
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727178
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 09, 2024The c.277C>T (p.H93Y) alteration is located in exon 4 (coding exon 4) of the RRP1 gene. This alteration results from a C to T substitution at nucleotide position 277, causing the histidine (H) at amino acid position 93 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.057
T
Eigen
Uncertain
0.42
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.68
T
M_CAP
Benign
0.0052
T
MetaRNN
Uncertain
0.44
T
MetaSVM
Benign
-0.76
T
MutationAssessor
Benign
1.9
L
PrimateAI
Uncertain
0.51
T
PROVEAN
Pathogenic
-5.0
D
REVEL
Benign
0.19
Sift4G
Benign
0.17
T
Polyphen
0.99
D
Vest4
0.42
MutPred
0.50
Loss of disorder (P = 0.086);
MVP
0.55
MPC
0.23
ClinPred
0.86
D
GERP RS
4.4
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.6
Varity_R
0.93
gMVP
0.26

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs779817474; hg19: chr21-45213202; API