9-128822500-C-T

Position:

chr9-128822500-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004435.2(ENDOG):c.784C>T(p.Arg262Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000113 in 1,409,988 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R262H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00011 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ENDOG
NM_004435.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.34

Variant links:

Genes affected

ENDOG (HGNC:3346): (endonuclease G) The protein encoded by this gene is a nuclear encoded endonuclease that is localized in the mitochondrion. The encoded protein is widely distributed among animals and cleaves DNA at GC tracts. This protein is capable of generating the RNA primers required by DNA polymerase gamma to initiate replication of mitochondrial DNA. [provided by RefSeq, Jul 2008]

ENDOG links:

SPOUT1 (HGNC:26933): (SPOUT domain containing methyltransferase 1) Enables miRNA binding activity. Involved in maintenance of centrosome location and production of miRNAs involved in gene silencing by miRNA. Located in kinetochore; mitotic spindle; and spindle pole centrosome. [provided by Alliance of Genome Resources, Apr 2022]

SPOUT1 links:

KYAT1-SPOUT1 (HGNC:):

KYAT1-SPOUT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ENDOG	NM_004435.2 linkuse as main transcript	c.784C>T	p.Arg262Cys	missense_variant	3/3	ENST00000372642.5
SPOUT1	NM_016390.4 linkuse as main transcript	c.*265G>A		3_prime_UTR_variant	12/12	ENST00000361256.10
KYAT1-SPOUT1	NR_182311.1 linkuse as main transcript	n.3307G>A		non_coding_transcript_exon_variant	25/25

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
ENDOG	ENST00000372642.5 linkuse as main transcript	c.784C>T	p.Arg262Cys	missense_variant	3/3	1	NM_004435.2	P1
SPOUT1	ENST00000361256.10 linkuse as main transcript	c.*265G>A		3_prime_UTR_variant	12/12	1	NM_016390.4	P1
SPOUT1	ENST00000467582.1 linkuse as main transcript	c.*225G>A		3_prime_UTR_variant	3/3	2

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

152220

Hom.:

Cov.:

FAILED QC

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

167200

Hom.:

AF XY:

0.0000113

AC XY:

AN XY:

88608

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000603

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000113

AC:

159

AN:

1409988

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

696408

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000274

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:

0.000141

Gnomad4 OTH exome

AF:

0.0000855

GnomAD4 genome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74356

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000554

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000508

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

Sep 28, 2022

The c.784C>T (p.R262C) alteration is located in exon 3 (coding exon 3) of the ENDOG gene. This alteration results from a C to T substitution at nucleotide position 784, causing the arginine (R) at amino acid position 262 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

0.32

BayesDel_addAF

Benign

-0.029

BayesDel_noAF

Benign

-0.090

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.23

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.95

M_CAP

Uncertain

0.19

MetaRNN

Uncertain

0.74

MetaSVM

Uncertain

-0.044

MutationAssessor

Benign

2.0

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.72

PROVEAN

Uncertain

-2.7

REVEL

Uncertain

0.50

Sift

Benign

0.051

Sift4G

Uncertain

0.051

Polyphen

0.99

Vest4

0.65

MutPred

0.56

Gain of sheet (P = 0.0827);

MVP

0.74

MPC

1.1

ClinPred

0.56

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.16

gMVP

0.74

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