Genetic Variant NM_174923.3:c.415A>G (chr9-35660750-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_174923.3(CCDC107):c.415A>G(p.Thr139Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,614 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. T139S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CCDC107
NM_174923.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.55

Publications

0 publications found

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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CCDC107	NM_174923.3 link	c.415A>G	p.Thr139Ala	missense_variant	Exon 5 of 5	ENST00000426546.7	NP_777583.2	Q8WV48-1
ARHGEF39	NM_032818.3 link	c.*1237T>C		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.415A>G	p.Thr139Ala	missense_variant	Exon 5 of 5	1	NM_174923.3	ENSP00000414964.2		Q8WV48-1
ARHGEF39	ENST00000378387.4 link	c.*1237T>C		3_prime_UTR_variant	Exon 9 of 9	1	NM_032818.3	ENSP00000367638.3		Q8N4T4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461614

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727082

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33470

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111808

Other (OTH)

AF:

0.00

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.057

BayesDel_noAF

Benign

-0.32

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.12

.;T

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Benign

0.67

LIST_S2

Benign

0.70

T;T

M_CAP

Benign

0.015

MetaRNN

Uncertain

0.45

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

L;L

PhyloP100

2.5

PrimateAI

Uncertain

0.49

PROVEAN

Uncertain

-3.0

D;D

REVEL

Benign

0.17

Sift

Uncertain

0.015

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

.;D

Vest4

0.57

MutPred

0.51

Loss of catalytic residue at T139 (P = 0.1552);Loss of catalytic residue at T139 (P = 0.1552);

MVP

0.53

MPC

0.84

ClinPred

0.95

GERP RS

4.1

BranchPoint Hunter

3.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.10

gMVP

0.51

Mutation Taster

=89/11

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

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NM_174923.3:c.415A>G

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