3-53092557-G-T

Position:

• chr3-53092557-G-T

Variant summary

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

The NM_052859.4(RFT1):​c.1270C>A​(p.Arg424Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: RFT1 NM_052859.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.255

Genes affected

RFT1 (HGNC:30220): (RFT1 homolog) This gene encodes an enzyme which catalyzes the translocation of the Man(5)GlcNAc (2)-PP-Dol intermediate from the cytoplasmic to the luminal side of the endoplasmic reticulum membrane in the pathway for the N-glycosylation of proteins. Mutations in this gene are associated with congenital disorder of glycosylation type In.[provided by RefSeq, Dec 2008]

ENSG00000272305 (HGNC:):

ACMG classification

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	Protein	UniProt
RFT1	NM_052859.4	c.1270C>A	p.Arg424Ser	missense_variant	12/13	ENST00000296292.8	NP_443091.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RFT1	ENST00000296292.8	c.1270C>A	p.Arg424Ser	missense_variant	12/13	1	NM_052859.4	ENSP00000296292.3
ENSG00000272305	ENST00000607283.5	n.133C>A		non_coding_transcript_exon_variant	2/5	5		ENSP00000475819.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152114 Hom.: 0 Cov.: 33

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: 0.000480

GnomAD3 exomes AF: 0.00000809 AC: 2 AN: 247068 Hom.: 0 AF XY: 0.0000150 AC XY: 2 AN XY: 133270

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: 0.0000179

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152114 Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1 AN XY: 74306

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: 0.000480

ExAC AF: 0.0000330 AC: 4

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	14
DANN	Benign	0.40
DEOGEN2	Benign	0.16	T;T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.5
FATHMM_MKL	Benign	0.12	N
LIST_S2	Benign	0.69	T;T
M_CAP	Benign	0.036	D
MetaRNN	Benign	0.071	T;T
MetaSVM	Benign	-0.81	T
MutationAssessor	Benign	0.74	N;.
PrimateAI	Benign	0.20	T
PROVEAN	Benign	-0.56	N;N
REVEL	Benign	0.17
Sift	Benign	0.46	T;T
Sift4G	Benign	0.50	T;T
Polyphen		0.0010	B;B
Vest4		0.23
MutPred		0.48		Loss of solvent accessibility (P = 0.1077);.;
MVP		0.30
MPC		0.14
ClinPred		0.0064	T
GERP RS		-4.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.074
gMVP		0.21

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.36		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.36		Position offset: -2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs138803905; hg19: chr3-53126573;