Variant 12-411782-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_032358.4(CCDC77):c.74G>A(p.Ser25Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S25R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

CCDC77
NM_032358.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.944

Variant links:

Genes affected

CCDC77 (HGNC:28203): (coiled-coil domain containing 77) Located in centrosome. [provided by Alliance of Genome Resources, Apr 2022]

CCDC77 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.13216662).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
CCDC77	NM_032358.4 linkuse as main transcript	c.74G>A	p.Ser25Asn	missense_variant	4/13	ENST00000239830.9	NP_115734.1
CCDC77	NM_001130146.2 linkuse as main transcript	c.-23G>A		5_prime_UTR_variant	3/12		NP_001123618.1
CCDC77	NM_001130147.2 linkuse as main transcript	c.-23G>A		5_prime_UTR_variant	3/12		NP_001123619.1
CCDC77	NM_001130148.2 linkuse as main transcript	c.-23G>A		5_prime_UTR_variant	2/11		NP_001123620.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CCDC77	ENST00000239830.9 linkuse as main transcript	c.74G>A	p.Ser25Asn	missense_variant	4/13	2	NM_032358.4	ENSP00000239830	P1	Q9BR77-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251350

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135860

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461764

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727198

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152160

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 12, 2023

The c.74G>A (p.S25N) alteration is located in exon 4 (coding exon 2) of the CCDC77 gene. This alteration results from a G to A substitution at nucleotide position 74, causing the serine (S) at amino acid position 25 to be replaced by an asparagine (N). 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

0.094

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.64

CADD

Benign

8.5

DANN

Benign

0.95

DEOGEN2

Benign

0.0029

.;T

Eigen

Benign

-0.81

Eigen_PC

Benign

-0.81

FATHMM_MKL

Benign

0.060

LIST_S2

Benign

0.32

T;T

M_CAP

Benign

0.0053

MetaRNN

Benign

0.13

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

.;L

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.80

N;N

REVEL

Benign

0.0070

Sift

Benign

0.094

T;T

Sift4G

Uncertain

0.049

D;D

Polyphen

0.16

.;B

Vest4

0.11

MutPred

0.24

Gain of catalytic residue at V24 (P = 0);Gain of catalytic residue at V24 (P = 0);

MVP

0.41

MPC

0.12

ClinPred

0.063

GERP RS

3.1

Varity_R

0.025

gMVP

0.18

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

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