Genetic Variant RUNDC3A:p.Ser55Leu (chr17-44312636-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_001144825.2(RUNDC3A):c.164C>T(p.Ser55Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000227 in 1,587,630 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

RUNDC3A
NM_001144825.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.81

Variant links:

Genes affected

RUNDC3A (HGNC:16984): (RUN domain containing 3A) Predicted to enable GTPase regulator activity. Predicted to be involved in positive regulation of cGMP-mediated signaling. Located in intracellular membrane-bounded organelle. [provided by Alliance of Genome Resources, Apr 2022]

RUNDC3A links:

RUNDC3A-AS1 (HGNC:51344): (RUNDC3A antisense RNA 1)

RUNDC3A-AS1 links:

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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 rank	MANE	Protein	UniProt
RUNDC3A	NM_001144825.2 link	c.164C>T	p.Ser55Leu	missense_variant	Exon 2 of 11	ENST00000426726.8	NP_001138297.1	Q59EK9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RUNDC3A	ENST00000426726.8 link	c.164C>T	p.Ser55Leu	missense_variant	Exon 2 of 11	1	NM_001144825.2	ENSP00000410862.2		Q59EK9-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000244

AC:

AN:

1435492

Hom.:

Cov.:

AF XY:

0.0000211

AC XY:

AN XY:

711388

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000260

Gnomad4 SAS exome

AF:

0.0000122

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000300

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000278

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000166

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 08, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.164C>T (p.S55L) alteration is located in exon 2 (coding exon 2) of the RUNDC3A gene. This alteration results from a C to T substitution at nucleotide position 164, causing the serine (S) at amino acid position 55 to be replaced by a leucine (L). 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

0.24

BayesDel_addAF

Benign

-0.0015

BayesDel_noAF

Benign

-0.24

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.31

T;.;.

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.94

D;D;D

M_CAP

Benign

0.040

MetaRNN

Uncertain

0.52

D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.4

M;M;M

PrimateAI

Pathogenic

0.79

PROVEAN

Uncertain

-3.2

D;.;D

REVEL

Benign

0.25

Sift

Benign

0.10

T;.;T

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

0.98

D;D;D

Vest4

0.82

MutPred

0.37

Loss of disorder (P = 0.0048);Loss of disorder (P = 0.0048);Loss of disorder (P = 0.0048);

MVP

0.082

MPC

1.8

ClinPred

0.71

GERP RS

4.1

Varity_R

0.31

gMVP

0.68

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over