Genetic Variant NM_178335.3:c.1231C>G (chr3-191380921-C-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_178335.3(CCDC50):c.1231C>G(p.Pro411Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,459,754 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P411S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CCDC50
NM_178335.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.239

Publications

1 publications found

Variant links:

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]

CCDC50 Gene-Disease associations (from GenCC):

autosomal dominant nonsyndromic hearing loss 44
Inheritance: AD, Unknown Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia
autosomal dominant nonsyndromic hearing loss
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
nonsyndromic genetic hearing loss
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

CCDC50 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.027457088).

BS2

High AC in GnomAdExome4 at 20 AD,Unknown gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC50	NM_178335.3 link	c.1231C>G	p.Pro411Ala	missense_variant	Exon 9 of 12	ENST00000392455.9	NP_848018.1	Q8IVM0-2
CCDC50	NM_174908.4 link	c.703C>G	p.Pro235Ala	missense_variant	Exon 8 of 11		NP_777568.1	Q8IVM0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC50	ENST00000392455.9 link	c.1231C>G	p.Pro411Ala	missense_variant	Exon 9 of 12	1	NM_178335.3	ENSP00000376249.4		Q8IVM0-2
CCDC50	ENST00000392456.4 link	c.703C>G	p.Pro235Ala	missense_variant	Exon 8 of 11	1		ENSP00000376250.4		Q8IVM0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000137

AC:

AN:

1459754

Hom.:

Cov.:

AF XY:

0.00000964

AC XY:

AN XY:

726176

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33392

American (AMR)

AF:

0.00

AC:

AN:

44558

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26070

East Asian (EAS)

AF:

0.00

AC:

AN:

39592

South Asian (SAS)

AF:

0.00

AC:

AN:

86120

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53348

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.0000171

AC:

AN:

1110622

Other (OTH)

AF:

0.00

AC:

AN:

60296

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

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.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.061

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.67

CADD

Benign

1.6

(source)

DANN

Benign

0.49

DEOGEN2

Benign

0.0073

.;T

Eigen

Benign

-0.76

Eigen_PC

Benign

-0.76

FATHMM_MKL

Benign

0.10

LIST_S2

Benign

0.83

T;T

M_CAP

Benign

0.0032

MetaRNN

Benign

0.027

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Uncertain

2.3

.;M

PhyloP100

-0.24

PrimateAI

Benign

0.28

REVEL

Benign

0.091

Polyphen

0.0020

B;B

MutPred

0.17

.;Loss of glycosylation at P235 (P = 0.0347);

MVP

0.17

MPC

0.21

ClinPred

0.080

GERP RS

0.60

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.052

gMVP

0.016

Mutation Taster

=86/14

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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