Genetic Variant NM_006332.5:c.227G>C (chr19-18175134-G-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_006332.5(IFI30):c.227G>C(p.Arg76Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0000031 in 1,611,514 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

IFI30
NM_006332.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.77

Publications

73 publications found

Variant links:

Genes affected

IFI30 (HGNC:5398): (IFI30 lysosomal thiol reductase) The protein encoded by this gene is a lysosomal thiol reductase that at low pH can reduce protein disulfide bonds. The enzyme is expressed constitutively in antigen-presenting cells and induced by gamma-interferon in other cell types. This enzyme has an important role in MHC class II-restricted antigen processing. [provided by RefSeq, Jul 2008]

IFI30 links:

ENSG00000268173 (HGNC:):

ENSG00000268173 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.979

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006332.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IFI30	NM_006332.5	MANE Select	c.227G>C	p.Arg76Pro	missense	Exon 2 of 7	NP_006323.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
IFI30	ENST00000407280.4	TSL:1 MANE Select	c.227G>C	p.Arg76Pro	missense	Exon 2 of 7	ENSP00000384886.1
ENSG00000268173	ENST00000593731.1	TSL:2	n.*1663G>C		non_coding_transcript_exon	Exon 20 of 25	ENSP00000471914.1
ENSG00000268173	ENST00000593731.1	TSL:2	n.*1663G>C		3_prime_UTR	Exon 20 of 25	ENSP00000471914.1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151986

Hom.:

Cov.:

show subpopulations

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1459528

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725858

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33448

American (AMR)

AF:

0.00

AC:

AN:

44334

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26048

East Asian (EAS)

AF:

0.00

AC:

AN:

39654

South Asian (SAS)

AF:

0.00

AC:

AN:

85926

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53248

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1110808

Other (OTH)

AF:

0.00

AC:

AN:

60300

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151986

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74232

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41374

American (AMR)

AF:

0.00

AC:

AN:

15252

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10582

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67992

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

16252

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Pathogenic

0.43

BayesDel_noAF

Pathogenic

0.38

CADD

Uncertain

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.34

Eigen

Uncertain

0.32

Eigen_PC

Benign

0.17

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.87

M_CAP

Uncertain

0.12

MetaRNN

Pathogenic

0.98

MetaSVM

Uncertain

0.23

MutationAssessor

Pathogenic

3.7

PhyloP100

5.8

PrimateAI

Uncertain

0.61

PROVEAN

Pathogenic

-6.6

REVEL

Pathogenic

0.70

Sift

Uncertain

0.0060

Sift4G

Uncertain

0.0030

Polyphen

1.0

Vest4

0.84

MutPred

0.68

Loss of methylation at R76 (P = 0.0322)

MVP

0.42

MPC

0.17

ClinPred

0.97

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.96

gMVP

0.93

Mutation Taster

=66/34

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over