3-191329954-G-C

Variant names:

• chr3-191329954-G-C
• rs115986233
• NM_178335.3:c.49+231G>C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_Strong BS2

The NM_178335.3(CCDC50):​c.49+231G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000622 in 138,340 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 𝑓 0.00062 (1 hom., cov: 22)
• Consequence: CCDC50 NM_178335.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.211

Genes affected

CCDC50 (HGNC:18111): (coiled-coil domain containing 50) This gene encodes a soluble, cytoplasmic, tyrosine-phosphorylated protein with multiple ubiquitin-interacting domains. Mutations in this gene cause nonsyndromic, postlingual, progressive sensorineural DFNA44 hearing loss. In mouse, the protein is expressed in the inner ear during development and postnatal maturation and associates with microtubule-based structures. This protein may also function as a negative regulator of NF-kB signaling and as an effector of epidermal growth factor (EGF)-mediated cell signaling. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Oct 2008]

UTS2B (HGNC:30894): (urotensin 2B) Predicted to enable G protein-coupled receptor binding activity. Predicted to be involved in regulation of blood pressure. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -8 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).
• BS2: High AC in GnomAd4 at 86 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC50	NM_178335.3	c.49+231G>C		intron_variant	Intron 1 of 11	ENST00000392455.9	NP_848018.1
UTS2B	NM_198152.5	c.-665+460C>G		intron_variant	Intron 1 of 8	ENST00000340524.10	NP_937795.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC50	ENST00000392455.9	c.49+231G>C		intron_variant	Intron 1 of 11	1	NM_178335.3	ENSP00000376249.4
UTS2B	ENST00000340524.10	c.-665+460C>G		intron_variant	Intron 1 of 8	2	NM_198152.5	ENSP00000340526.5
CCDC50	ENST00000392456.4	c.49+231G>C		intron_variant	Intron 1 of 10	1		ENSP00000376250.4
UTS2B	ENST00000432514.5	c.-832+460C>G		intron_variant	Intron 1 of 6	5		ENSP00000401028.1

Frequencies

GnomAD3 genomes AF: 0.000622 AC: 86 AN: 138236 Hom.: 1 Cov.: 22

Gnomad AFR AF: 0.000941

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000667

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000229

Gnomad SAS AF: 0.000251

Gnomad FIN AF: 0.00174

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000389

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.000622 AC: 86 AN: 138340 Hom.: 1 Cov.: 22 AF XY: 0.000675 AC XY: 45 AN XY: 66648

Gnomad4 AFR AF: 0.000938

Gnomad4 AMR AF: 0.000666

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.000229

Gnomad4 SAS AF: 0.000252

Gnomad4 FIN AF: 0.00174

Gnomad4 NFE AF: 0.000389

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000395 Hom.: 61

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	2.4
DANN	Benign	0.41

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

Other links and lift over

dbSNP: rs115986233; hg19: chr3-191047743;