1-103536119-C-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_017619.4(RNPC3):​c.556-7C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000484 in 1,529,348 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

RNPC3
NM_017619.4 splice_region, intron

Scores

2
Splicing: ADA: 0.00003352
2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -0.00800
Variant links:
Genes affected
RNPC3 (HGNC:18666): (RNA binding region (RNP1, RRM) containing 3) Two types of spliceosomes catalyze splicing of pre-mRNAs. The major U2-type spliceosome is found in all eukaryotes and removes U2-type introns, which represent more than 99% of pre-mRNA introns. The minor U12-type spliceosome is found in some eukaryotes and removes U12-type introns, which are rare and have distinct splice consensus signals. The U12-type spliceosome consists of several small nuclear RNAs and associated proteins. This gene encodes a 65K protein that is a component of the U12-type spliceosome. This protein contains two RNA recognition motifs (RRMs), suggesting that it may contact one of the small nuclear RNAs of the minor spliceosome. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 1-103536119-C-T is Benign according to our data. Variant chr1-103536119-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3058769.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000204 (31/152208) while in subpopulation AFR AF= 0.000529 (22/41558). AF 95% confidence interval is 0.000358. There are 0 homozygotes in gnomad4. There are 16 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
RNPC3NM_017619.4 linkc.556-7C>T splice_region_variant, intron_variant Intron 5 of 14 ENST00000423855.7 NP_060089.1 Q96LT9-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
RNPC3ENST00000423855.7 linkc.556-7C>T splice_region_variant, intron_variant Intron 5 of 14 1 NM_017619.4 ENSP00000391432.1 Q96LT9-1
RNPC3ENST00000533099.5 linkc.556-7C>T splice_region_variant, intron_variant Intron 6 of 15 5 ENSP00000432886.1 Q96LT9-1
RNPC3ENST00000524631.5 linkc.556-7C>T splice_region_variant, intron_variant Intron 5 of 14 2 ENSP00000437278.1 Q96LT9-2
RNPC3ENST00000527062.5 linkc.79-7C>T splice_region_variant, intron_variant Intron 5 of 7 5 ENSP00000436315.1 E9PPV2

Frequencies

GnomAD3 genomes
AF:
0.000197
AC:
30
AN:
152090
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000507
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000212
AC:
3
AN:
141408
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
75640
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000517
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000312
AC:
43
AN:
1377140
Hom.:
0
Cov.:
28
AF XY:
0.0000265
AC XY:
18
AN XY:
680024
show subpopulations
Gnomad4 AFR exome
AF:
0.000605
Gnomad4 AMR exome
AF:
0.00
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:
0.0000196
Gnomad4 OTH exome
AF:
0.0000520
GnomAD4 genome
AF:
0.000204
AC:
31
AN:
152208
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74410
show subpopulations
Gnomad4 AFR
AF:
0.000529
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.000166

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

RNPC3-related disorder Benign:1
Apr 25, 2019
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
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.73
DANN
Benign
0.31

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000034
dbscSNV1_RF
Benign
0.0020
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: rs544104212; hg19: chr1-104078741; API