Genetic Variant YTHDF1:p.Ala302Gly (chr20-63203035-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017798.4(YTHDF1):c.905C>G(p.Ala302Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000547 in 1,607,336 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

YTHDF1
NM_017798.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.67

Variant links:

Genes affected

YTHDF1 (HGNC:15867): (YTH N6-methyladenosine RNA binding protein F1) Enables N6-methyladenosine-containing RNA binding activity and ribosome binding activity. Involved in mRNA destabilization; positive regulation of translational initiation; and stress granule assembly. Located in P-body and cytoplasmic stress granule. [provided by Alliance of Genome Resources, Apr 2022]

YTHDF1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06646299).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
YTHDF1	NM_017798.4 link	c.905C>G	p.Ala302Gly	missense_variant	Exon 4 of 5	ENST00000370339.8	NP_060268.2	Q9BYJ9-1
YTHDF1	XM_024451914.2 link	c.755C>G	p.Ala252Gly	missense_variant	Exon 3 of 4		XP_024307682.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
YTHDF1	ENST00000370339.8 link	c.905C>G	p.Ala302Gly	missense_variant	Exon 4 of 5	1	NM_017798.4	ENSP00000359364.3		Q9BYJ9-1
YTHDF1	ENST00000370334.4 link	c.133-6301C>G		intron_variant	Intron 3 of 3	3		ENSP00000359359.4		Q5JXC6

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000163

AC:

AN:

244972

Hom.:

AF XY:

0.00000752

AC XY:

AN XY:

133016

show subpopulations

Gnomad AFR exome

AF:

0.0000648

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:

0.0000271

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000570

AC:

AN:

1455100

Hom.:

Cov.:

AF XY:

0.0000581

AC XY:

AN XY:

722954

show subpopulations

Gnomad4 AFR exome

AF:

0.0000599

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:

0.0000686

Gnomad4 OTH exome

AF:

0.0000832

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152236

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.0000482

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:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000904

Hom.:

Bravo

AF:

0.0000340

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 04, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.905C>G (p.A302G) alteration is located in exon 4 (coding exon 4) of the YTHDF1 gene. This alteration results from a C to G substitution at nucleotide position 905, causing the alanine (A) at amino acid position 302 to be replaced by a glycine (G). 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

0.073

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.73

CADD

Benign

5.3

DANN

Benign

0.59

DEOGEN2

Benign

0.022

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.72

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.26

M_CAP

Benign

0.015

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.20

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.99

REVEL

Benign

0.034

Sift

Benign

0.52

Sift4G

Benign

0.35

Polyphen

0.0010

Vest4

0.076

MutPred

0.29

Loss of loop (P = 0.0986);

MVP

0.043

MPC

0.42

ClinPred

0.014

GERP RS

3.5

Varity_R

0.023

gMVP

0.084

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