3-9840238-G-T

Variant names:

• chr3-9840238-G-T
• rs767103943
• NM_173659.5:c.646C>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001351738.2(RPUSD3):​c.674C>A​(p.Ser225*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,822 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RPUSD3 NM_001351738.2 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.28
• Publications: 0 publications found

Genes affected

RPUSD3 (HGNC:28437): (RNA pseudouridine synthase D3) This gene encodes a protein that functions in the assembly of the mitochondrial ribosome by adding a pseudouridine group to 16S rRNA. Loss of this gene results in causes defects in mitochondrial protein production. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2017]

TTLL3 (HGNC:24483): (tubulin tyrosine ligase like 3) Enables protein-glycine ligase activity. Predicted to be involved in axoneme assembly and flagellated sperm motility. Predicted to be located in axoneme; microtubule cytoskeleton; and sperm flagellum. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001351738.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPUSD3	NM_173659.5	MANE Select	c.646C>A	p.Arg216Ser	missense	Exon 7 of 9	NP_775930.3	Q6P087-5
	RPUSD3	NM_001351738.2		c.674C>A	p.Ser225*	stop_gained	Exon 7 of 9	NP_001338667.2
	RPUSD3	NM_001142547.3		c.601C>A	p.Arg201Ser	missense	Exon 6 of 8	NP_001136019.2	Q6P087-6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RPUSD3	ENST00000383820.10	TSL:1 MANE Select	c.646C>A	p.Arg216Ser	missense	Exon 7 of 9	ENSP00000373331.6	Q6P087-5
	RPUSD3	ENST00000433535.7	TSL:1	c.601C>A	p.Arg201Ser	missense	Exon 6 of 8	ENSP00000398921.3	Q6P087-6
	RPUSD3	ENST00000427174.5	TSL:5	c.668C>A	p.Ser223*	stop_gained	Exon 7 of 9	ENSP00000400397.1	H7C1H7

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251442 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 6.84e-7 AC: 1 AN: 1461822 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727216

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000224 AC: 1 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5716

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112008

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.24
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.38
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.036	T
Eigen	Uncertain	0.20
Eigen_PC	Benign	0.17
FATHMM_MKL	Benign	0.45	N
LIST_S2	Benign	0.64	T
M_CAP	Benign	0.014	T
MetaRNN	Uncertain	0.43	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		1.3
PrimateAI	Benign	0.24	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.23
Sift	Uncertain	0.015	D
Sift4G	Uncertain	0.047	D
Polyphen		0.85	P
Vest4		0.54
MutPred		0.68		Loss of MoRF binding (P = 0.018)
MVP		0.67
MPC		0.60
ClinPred		0.88	D
GERP RS		3.3
PromoterAI		-0.015	Neutral
Varity_R		0.35
gMVP		0.67
Mutation Taster		=92/8	polymorphism

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

Other links and lift over

dbSNP: rs767103943; hg19: chr3-9881922;