dbSNP rs918108896: RNPC3:p.Arg502Arg (chr1-103551730-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4BP7

The NM_017619.4(RNPC3):c.1504C>A(p.Arg502Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000727 in 1,375,920 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.3e-7 ( 0 hom. )

Consequence

RNPC3
NM_017619.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.31

Publications

0 publications found

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]

RNPC3 Gene-Disease associations (from GenCC):

isolated growth hormone deficiency, type 5
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
isolated growth hormone deficiency type IA
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

RNPC3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.15).

BP7

Synonymous conserved (PhyloP=3.31 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RNPC3	NM_017619.4 link	c.1504C>A	p.Arg502Arg	synonymous_variant	Exon 14 of 15	ENST00000423855.7	NP_060089.1	Q96LT9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RNPC3	ENST00000423855.7 link	c.1504C>A	p.Arg502Arg	synonymous_variant	Exon 14 of 15	1	NM_017619.4	ENSP00000391432.1		Q96LT9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.27e-7

AC:

AN:

1375920

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

679126

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

30410

American (AMR)

AF:

0.00

AC:

AN:

32772

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24842

East Asian (EAS)

AF:

0.00

AC:

AN:

35546

South Asian (SAS)

AF:

0.00

AC:

AN:

75124

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5636

European-Non Finnish (NFE)

AF:

9.39e-7

AC:

AN:

1065022

Other (OTH)

AF:

0.00

AC:

AN:

57154

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.15

CADD

Benign

(source)

DANN

Benign

0.73

PhyloP100

3.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.18

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over