chr20-17620305-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001365613.2(RRBP1):​c.3573G>A​(p.Ser1191=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000098 in 1,612,822 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000067 ( 0 hom. )

Consequence

RRBP1
NM_001365613.2 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.220
Variant links:
Genes affected
RRBP1 (HGNC:10448): (ribosome binding protein 1) This gene encodes a ribosome-binding protein of the endoplasmic reticulum (ER) membrane. Studies suggest that this gene plays a role in ER proliferation, secretory pathways and secretory cell differentiation, and mediation of ER-microtubule interactions. Alternative splicing has been observed and protein isoforms are characterized by regions of N-terminal decapeptide and C-terminal heptad repeats. Splicing of the tandem repeats results in variations in ribosome-binding affinity and secretory function. The full-length nature of variants which differ in repeat length has not been determined. Pseudogenes of this gene have been identified on chromosomes 3 and 7, and RRBP1 has been excluded as a candidate gene in the cause of Alagille syndrome, the result of a mutation in a nearby gene on chromosome 20p12. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP6
Variant 20-17620305-C-T is Benign according to our data. Variant chr20-17620305-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 726924.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.22 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
RRBP1NM_001365613.2 linkuse as main transcriptc.3573G>A p.Ser1191= synonymous_variant 18/25 ENST00000377813.6 NP_001352542.1
RRBP1NM_001042576.2 linkuse as main transcriptc.2274G>A p.Ser758= synonymous_variant 19/26 NP_001036041.2
RRBP1NM_004587.3 linkuse as main transcriptc.2274G>A p.Ser758= synonymous_variant 18/25 NP_004578.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
RRBP1ENST00000377813.6 linkuse as main transcriptc.3573G>A p.Ser1191= synonymous_variant 18/251 NM_001365613.2 ENSP00000367044 A2Q9P2E9-1

Frequencies

GnomAD3 genomes
AF:
0.000394
AC:
60
AN:
152142
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000797
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00144
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000191
AC:
48
AN:
251448
Hom.:
0
AF XY:
0.000125
AC XY:
17
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00135
Gnomad AMR exome
AF:
0.000521
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000671
AC:
98
AN:
1460560
Hom.:
0
Cov.:
31
AF XY:
0.0000605
AC XY:
44
AN XY:
726702
show subpopulations
Gnomad4 AFR exome
AF:
0.000897
Gnomad4 AMR exome
AF:
0.000514
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000104
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000394
AC:
60
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.000430
AC XY:
32
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.000794
Gnomad4 AMR
AF:
0.00144
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000262
Hom.:
0
Bravo
AF:
0.000688
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 20, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
1.3
DANN
Benign
0.52
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7

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

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

Other links and lift over

dbSNP: rs138279227; hg19: chr20-17600950; COSMIC: COSV99853705; COSMIC: COSV99853705; API