NM_014806.5:c.3952C>T

Variant names:

• chr9-35560592-C-T
• rs1554645052
• NM_014806.5:c.3952C>T

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_014806.5(RUSC2):​c.3952C>T​(p.Arg1318*) 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 1,461,260 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. R1318R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RUSC2 NM_014806.5 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 2.12
• Publications: 1 publications found

Genes affected

RUSC2 (HGNC:23625): (RUN and SH3 domain containing 2) This gene encodes a RUN and SH3 domain containing protein that interacts with Rab1b and Rab1-binding protein GM130. Alternatively spliced transcript variants have been observed for this gene. [provided by RefSeq, Jun 2012]

RUSC2 Gene-Disease associations (from GenCC):

• intellectual disability, autosomal recessive 61

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: Illumina, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 9-35560592-C-T is Pathogenic according to our data. Variant chr9-35560592-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 446386.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RUSC2	NM_014806.5	c.3952C>T	p.Arg1318*	stop_gained	Exon 10 of 12	ENST00000361226.8	NP_055621.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RUSC2	ENST00000361226.8	c.3952C>T	p.Arg1318*	stop_gained	Exon 10 of 12	2	NM_014806.5	ENSP00000355177.3
RUSC2	ENST00000455600.1	c.3952C>T	p.Arg1318*	stop_gained	Exon 10 of 12	1		ENSP00000393922.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461260 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726894

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44688

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.00 AC: 0 AN: 39676

South Asian (SAS) AF: 0.00 AC: 0 AN: 86226

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53248

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111736

Other (OTH) AF: 0.00 AC: 0 AN: 60322

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Intellectual disability, autosomal recessive 61 Pathogenic:1

Apr 07, 2022

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.53	D
BayesDel_noAF	Pathogenic	0.53
CADD	Pathogenic	36
DANN	Uncertain	1.0
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Uncertain	0.94	D
PhyloP100		2.1
Vest4		0.26
GERP RS		4.4
Mutation Taster		=2/198	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs1554645052; hg19: chr9-35560589;