chr9-128820787-C-T

Position:

chr9-128820787-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_004435.2(ENDOG):c.550C>T(p.Arg184Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000434 in 1,612,456 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

ENDOG
NM_004435.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.73

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 Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.97

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ENDOG	NM_004435.2 linkuse as main transcript	c.550C>T	p.Arg184Cys	missense_variant	2/3	ENST00000372642.5
SPOUT1	NM_016390.4 linkuse as main transcript	c.*1978G>A		3_prime_UTR_variant	12/12	ENST00000361256.10
KYAT1-SPOUT1	NR_182311.1 linkuse as main transcript	n.5020G>A		non_coding_transcript_exon_variant	25/25

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ENDOG	ENST00000372642.5 linkuse as main transcript	c.550C>T	p.Arg184Cys	missense_variant	2/3	1	NM_004435.2	P1
SPOUT1	ENST00000361256.10 linkuse as main transcript	c.*1978G>A		3_prime_UTR_variant	12/12	1	NM_016390.4	P1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152090

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000363

AC:

AN:

247962

Hom.:

AF XY:

0.0000298

AC XY:

AN XY:

134120

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000146

Gnomad ASJ exome

AF:

0.000100

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000332

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000891

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000452

AC:

AN:

1460248

Hom.:

Cov.:

AF XY:

0.0000344

AC XY:

AN XY:

726220

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000135

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000233

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000486

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152208

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74412

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000579

Hom.:

Bravo

AF:

0.0000340

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 25, 2023

The c.550C>T (p.R184C) alteration is located in exon 2 (coding exon 2) of the ENDOG gene. This alteration results from a C to T substitution at nucleotide position 550, causing the arginine (R) at amino acid position 184 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.89

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Pathogenic

0.32

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.45

Eigen

Pathogenic

0.86

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

0.98

M_CAP

Uncertain

0.25

MetaRNN

Pathogenic

0.97

MetaSVM

Uncertain

0.76

MutationAssessor

Pathogenic

4.3

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.72

PROVEAN

Pathogenic

-7.8

REVEL

Pathogenic

0.83

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.96

MVP

0.94

MPC

1.2

ClinPred

1.0

GERP RS

4.0

Varity_R

0.89

gMVP

0.88

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