rs303215

Positions:

• chr10-89397074-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001548.5(IFIT1):​c.5+4357T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.173 in 152,216 control chromosomes in the GnomAD database, including 2,924 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.17 (2924 hom., cov: 32)
• Consequence: IFIT1 NM_001548.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.158

Genes affected

IFIT1 (HGNC:5407): (interferon induced protein with tetratricopeptide repeats 1) This gene encodes a protein containing tetratricopeptide repeats that was originally identified as induced upon treatment with interferon. The encoded protein may inhibit viral replication and translational initiation. This gene is located in a cluster on chromosome 10 with five other closely related genes. There is a pseudogene for this gene on chromosome 13. Alternatively spliced transcript variants encoding multiple isoforms have been observed. [provided by RefSeq, Aug 2012]

LIPA (HGNC:6617): (lipase A, lysosomal acid type) This gene encodes lipase A, the lysosomal acid lipase (also known as cholesterol ester hydrolase). This enzyme functions in the lysosome to catalyze the hydrolysis of cholesteryl esters and triglycerides. Mutations in this gene can result in Wolman disease and cholesteryl ester storage disease. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jan 2014]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.431 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IFIT1	NM_001548.5	c.5+4357T>C		intron_variant		ENST00000371804.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IFIT1	ENST00000371804.4	c.5+4357T>C		intron_variant		1	NM_001548.5	P1
LIPA	ENST00000371837.5	c.61+15717A>G		intron_variant		2
IFIT1	ENST00000546318.2	c.-89+3733T>C		intron_variant		3

Frequencies

GnomAD3 genomes AF: 0.173 AC: 26272 AN: 152098 Hom.: 2925 Cov.: 32

Gnomad AFR AF: 0.0515

Gnomad AMI AF: 0.158

Gnomad AMR AF: 0.237

Gnomad ASJ AF: 0.238

Gnomad EAS AF: 0.446

Gnomad SAS AF: 0.340

Gnomad FIN AF: 0.224

Gnomad MID AF: 0.152

Gnomad NFE AF: 0.188

Gnomad OTH AF: 0.178

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.173 AC: 26272 AN: 152216 Hom.: 2924 Cov.: 32 AF XY: 0.180 AC XY: 13421 AN XY: 74410

Gnomad4 AFR AF: 0.0514

Gnomad4 AMR AF: 0.236

Gnomad4 ASJ AF: 0.238

Gnomad4 EAS AF: 0.446

Gnomad4 SAS AF: 0.341

Gnomad4 FIN AF: 0.224

Gnomad4 NFE AF: 0.188

Gnomad4 OTH AF: 0.178

Alfa AF: 0.169 Hom.: 284

Bravo AF: 0.164

Asia WGS AF: 0.315 AC: 1088 AN: 3466

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	2.8
DANN	Benign	0.83

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

Other links and lift over

dbSNP: rs303215; hg19: chr10-91156831;