Variant chr20-56513339-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_016407.5(RTF2):c.502G>A(p.Asp168Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

RTF2
NM_016407.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.38

Variant links:

Genes affected

RTF2 (HGNC:15890): (replication termination factor 2) Enables DNA binding activity. Involved in cellular response to hydroxyurea and regulation of DNA stability. Located in replication fork. [provided by Alliance of Genome Resources, Apr 2022]

RTF2 links:

GCNT7 (HGNC:16099): (glucosaminyl (N-acetyl) transferase family member 7) Predicted to enable acetylglucosaminyltransferase activity. Predicted to be involved in protein glycosylation. Predicted to be located in Golgi membrane. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

GCNT7 links:

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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, 0.947

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RTF2	NM_016407.5 linkuse as main transcript	c.502G>A	p.Asp168Asn	missense_variant	6/9	ENST00000357348.10
GCNT7	NR_160308.1 linkuse as main transcript	n.406+457C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RTF2	ENST00000357348.10 linkuse as main transcript	c.502G>A	p.Asp168Asn	missense_variant	6/9	1	NM_016407.5	P1
GCNT7	ENST00000243913.8 linkuse as main transcript	c.-667+457C>T		intron_variant		2		P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1453084

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

721620

Gnomad4 AFR exome

AF:

0.00

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:

0.00

GnomAD4 genome

Cov.:

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

Jun 28, 2022

The c.502G>A (p.D168N) alteration is located in exon 6 (coding exon 6) of the RTFDC1 gene. This alteration results from a G to A substitution at nucleotide position 502, causing the aspartic acid (D) at amino acid position 168 to be replaced by an asparagine (N). 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

0.26

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.40

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.066

.;.;T;T

Eigen

Uncertain

0.57

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.89

D;D;D;D

M_CAP

Benign

0.013

MetaRNN

Pathogenic

0.95

D;D;D;D

MetaSVM

Benign

-0.85

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.61

PROVEAN

Pathogenic

-4.8

.;.;D;D

REVEL

Uncertain

0.33

Sift

Benign

0.053

.;.;T;D

Sift4G

Uncertain

0.041

D;D;D;D

Polyphen

1.0

.;.;D;.

Vest4

0.82

MutPred

0.88

Gain of catalytic residue at D198 (P = 0.1788);.;.;Gain of catalytic residue at D198 (P = 0.1788);

MVP

0.78

MPC

0.48

ClinPred

0.99

GERP RS

4.7

gMVP

0.70

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