Variant 2-199911521-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBS1_Supporting

The NM_153689.6(C2orf69):c.83C>G(p.Ser28Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,549,496 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000086 ( 0 hom. )

Consequence

C2orf69
NM_153689.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.485

Variant links:

Genes affected

C2orf69 (HGNC:26799): (chromosome 2 open reading frame 69) Involved in oxidative phosphorylation. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

C2orf69 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09463248).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0000788 (12/152230) while in subpopulation AFR AF= 0.000289 (12/41468). AF 95% confidence interval is 0.000167. There are 0 homozygotes in gnomad4. There are 6 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
C2orf69	NM_153689.6 link	c.83C>G	p.Ser28Cys	missense_variant	1/2	ENST00000319974.6	NP_710156.3	Q8N8R5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
C2orf69	ENST00000319974.6 link	c.83C>G	p.Ser28Cys	missense_variant	1/2	1	NM_153689.6	ENSP00000312770.5		Q8N8R5
C2orf69	ENST00000491721.1 link	n.216C>G		non_coding_transcript_exon_variant	1/2	2

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000289

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:

0.0000281

AC:

AN:

142292

Hom.:

AF XY:

0.0000260

AC XY:

AN XY:

76836

show subpopulations

Gnomad AFR exome

AF:

0.000451

Gnomad AMR exome

AF:

0.0000409

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:

0.00000859

AC:

AN:

1397266

Hom.:

Cov.:

AF XY:

0.00000871

AC XY:

AN XY:

689150

show subpopulations

Gnomad4 AFR exome

AF:

0.000285

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:

0.0000518

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.000289

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

Bravo

AF:

0.0000718

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 19, 2022

The c.83C>G (p.S28C) alteration is located in exon 1 (coding exon 1) of the C2orf69 gene. This alteration results from a C to G substitution at nucleotide position 83, causing the serine (S) at amino acid position 28 to be replaced by a cysteine (C). 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

0.072

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.0026

Eigen

Benign

-0.53

Eigen_PC

Benign

-0.66

FATHMM_MKL

Benign

0.019

LIST_S2

Benign

0.43

M_CAP

Benign

0.013

MetaRNN

Benign

0.095

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

PROVEAN

Benign

-0.65

REVEL

Benign

0.037

Sift

Uncertain

0.023

Sift4G

Uncertain

0.060

Polyphen

0.89

Vest4

0.22

MVP

0.055

MPC

0.58

ClinPred

0.11

GERP RS

0.32

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.060

gMVP

0.67

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