chr10-89402920-C-G

Position:

• chr10-89402920-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001548.5(IFIT1):​c.645C>G​(p.Asp215Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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: not found (cov: 33)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: IFIT1 NM_001548.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.82

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 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=0.035648465).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IFIT1	NM_001548.5	c.645C>G	p.Asp215Glu	missense_variant	2/2	ENST00000371804.4	NP_001539.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IFIT1	ENST00000371804.4	c.645C>G	p.Asp215Glu	missense_variant	2/2	1	NM_001548.5	ENSP00000360869.3
IFIT1	ENST00000546318.2	c.552C>G	p.Asp184Glu	missense_variant	3/3	3		ENSP00000441968.1
LIPA	ENST00000371837.5	c.61+9871G>C		intron_variant		2		ENSP00000360903.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.0000119 AC: 3 AN: 251204 Hom.: 0 AF XY: 0.0000221 AC XY: 3 AN XY: 135778

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000579

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: 0.00

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1461842 Hom.: 0 Cov.: 36 AF XY: 0.00000825 AC XY: 6 AN XY: 727238

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000447

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: 0.00000450

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Benign	-0.42	T
BayesDel_noAF	Benign	-0.67
CADD	Benign	0.024
DANN	Benign	0.55
DEOGEN2	Benign	0.050	T;.
Eigen	Benign	-1.5
Eigen_PC	Benign	-1.5
FATHMM_MKL	Benign	0.017	N
LIST_S2	Benign	0.64	T;T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.036	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.29	N;.
PrimateAI	Benign	0.22	T
PROVEAN	Benign	0.77	N;N
REVEL	Benign	0.073
Sift	Benign	0.63	T;T
Sift4G	Benign	0.75	T;T
Polyphen		0.0	B;.
Vest4		0.046
MutPred		0.43		Loss of catalytic residue at D215 (P = 0.1561);.;
MVP		0.45
MPC		0.062
ClinPred		0.030	T
GERP RS		-1.7
Varity_R		0.084
gMVP		0.079

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: rs303210; hg19: chr10-91162677;