Genetic Variant CCDC107:p.Ala225Val (chr9-35661009-C-T) – 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_174923.3(CCDC107):c.674C>T(p.Ala225Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,613,958 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 (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

CCDC107
NM_174923.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.351

Variant links:

Genes affected

CCDC107 (HGNC:28465): (coiled-coil domain containing 107) This gene encodes a membrane protein which contains a coiled-coil domain in the central region. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2013]

CCDC107 links:

ARHGEF39 (HGNC:25909): (Rho guanine nucleotide exchange factor 39) Predicted to enable guanyl-nucleotide exchange factor activity. Involved in positive regulation of cell migration. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ARHGEF39 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=0.018601209).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC107	NM_174923.3 link	c.674C>T	p.Ala225Val	missense_variant	Exon 5 of 5	ENST00000426546.7	NP_777583.2	Q8WV48-1
ARHGEF39	NM_032818.3 link	c.*978G>A		3_prime_UTR_variant	Exon 9 of 9	ENST00000378387.4	NP_116207.2	Q8N4T4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CCDC107	ENST00000426546.7 link	c.674C>T	p.Ala225Val	missense_variant	Exon 5 of 5	1	NM_174923.3	ENSP00000414964.2		Q8WV48-1
ARHGEF39	ENST00000378387 link	c.*978G>A		3_prime_UTR_variant	Exon 9 of 9	1	NM_032818.3	ENSP00000367638.3		Q8N4T4-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152200

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:

0.000385

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:

0.0000723

AC:

AN:

249044

Hom.:

AF XY:

0.0000445

AC XY:

AN XY:

134848

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000979

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:

0.00000958

AC:

AN:

1461758

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727174

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000353

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000385

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.0000576

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 03, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.674C>T (p.A225V) alteration is located in exon 5 (coding exon 5) of the CCDC107 gene. This alteration results from a C to T substitution at nucleotide position 674, causing the alanine (A) at amino acid position 225 to be replaced by a valine (V). 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

0.11

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.59

CADD

Benign

7.9

DANN

Benign

0.84

DEOGEN2

Benign

0.013

.;T

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.64

T;T

M_CAP

Benign

0.0089

MetaRNN

Benign

0.019

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.3

.;L

PrimateAI

Benign

0.28

PROVEAN

Benign

-1.6

N;N

REVEL

Benign

0.038

Sift

Benign

0.033

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

0.0020

.;B

Vest4

0.12

MutPred

0.45

.;Loss of helix (P = 0.0444);

MVP

0.10

MPC

0.27

ClinPred

0.016

GERP RS

1.2

Varity_R

0.064

gMVP

0.019

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