Genetic Variant NM_001039374.5:c.822C>G (chr9-136804791-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001039374.5(CCDC183):c.822C>G(p.Asn274Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,613,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

CCDC183
NM_001039374.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.76

Variant links:

Genes affected

CCDC183 (HGNC:28236): (coiled-coil domain containing 183)

CCDC183 links:

CCDC183-AS1 (HGNC:44105): (CCDC183 antisense RNA 1)

CCDC183-AS1 links:

ENSG00000273066 (HGNC:):

ENSG00000273066 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05653301).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC183	NM_001039374.5 link	c.822C>G	p.Asn274Lys	missense_variant	Exon 8 of 14	ENST00000338005.7	NP_001034463.4	Q5T5S1-1Q96IG8
CCDC183-AS1	NR_024580.1 link	n.1522G>C		non_coding_transcript_exon_variant	Exon 5 of 5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC183	ENST00000338005.7 link	c.822C>G	p.Asn274Lys	missense_variant	Exon 8 of 14	1	NM_001039374.5	ENSP00000338013.6		Q5T5S1-1

Frequencies

GnomAD3 genomes

AF:

0.0000855

AC:

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000803

AC:

AN:

249146

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135224

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS 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:

0.00000547

AC:

AN:

1461630

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727100

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000855

AC:

AN:

152114

Hom.:

Cov.:

AF XY:

0.0000808

AC XY:

AN XY:

74298

show subpopulations

Gnomad4 AFR

AF:

0.000314

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 15, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.822C>G (p.N274K) alteration is located in exon 8 (coding exon 8) of the CCDC183 gene. This alteration results from a C to G substitution at nucleotide position 822, causing the asparagine (N) at amino acid position 274 to be replaced by a lysine (K). 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

0.18

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.77

CADD

Benign

0.26

DANN

Benign

0.76

DEOGEN2

Benign

0.011

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.092

LIST_S2

Benign

0.60

M_CAP

Benign

0.0035

MetaRNN

Benign

0.057

MetaSVM

Benign

-0.95

MutationAssessor

Uncertain

2.3

PrimateAI

Benign

0.35

PROVEAN

Benign

-1.8

REVEL

Benign

0.019

Sift

Benign

0.31

Sift4G

Uncertain

0.020

Polyphen

0.0010

Vest4

0.34

MutPred

0.22

Gain of ubiquitination at N274 (P = 0.0042);

MVP

0.048

MPC

0.19

ClinPred

0.032

GERP RS

-1.5

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.0

Varity_R

0.069

gMVP

0.060

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

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