chr5-150846690-C-CG

Variant names:

• chr5-150846690-C-CG
• rs33993564
• NM_001145805.2:c.-942dupG

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001145805.2(IRGM):​c.-942dupG variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000263 in 151,974 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 28)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: IRGM NM_001145805.2 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.00
• Publications: 5 publications found

Genes affected

IRGM (HGNC:29597): (immunity related GTPase M) This gene encodes a member of the p47 immunity-related GTPase family. The encoded protein may play a role in the innate immune response by regulating autophagy formation in response to intracellular pathogens. Polymorphisms that affect the normal expression of this gene are associated with a susceptibility to Crohn's disease and tuberculosis. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2016]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IRGM	NM_001145805.2	c.-942dupG		5_prime_UTR_variant	Exon 1 of 2	ENST00000522154.2	NP_001139277.1
IRGM	NR_170598.1	n.174dupG		non_coding_transcript_exon_variant	Exon 1 of 5
IRGM	NM_001346557.2	c.-942dupG		5_prime_UTR_variant	Exon 1 of 4		NP_001333486.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IRGM	ENST00000522154.2	c.-942dupG		5_prime_UTR_variant	Exon 1 of 2	1	NM_001145805.2	ENSP00000428220.1
IRGM	ENST00000609660.1	n.-113_-112insG		upstream_gene_variant		6

Frequencies

GnomAD3 genomes AF: 0.0000329 AC: 5 AN: 151856 Hom.: 0 Cov.: 28

Gnomad AFR AF: 0.0000728

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00316

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 348 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 266

African (AFR) AF: 0.00 AC: 0 AN: 8

American (AMR) AC: 0 AN: 0

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 4

East Asian (EAS) AF: 0.00 AC: 0 AN: 16

South Asian (SAS) AF: 0.00 AC: 0 AN: 6

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 12

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 296

Other (OTH) AF: 0.00 AC: 0 AN: 4

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 151974 Hom.: 0 Cov.: 28 AF XY: 0.0000135 AC XY: 1 AN XY: 74328

African (AFR) AF: 0.0000725 AC: 3 AN: 41352

American (AMR) AF: 0.0000654 AC: 1 AN: 15282

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3464

East Asian (EAS) AF: 0.00 AC: 0 AN: 5156

South Asian (SAS) AF: 0.00 AC: 0 AN: 4814

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10588

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68004

Other (OTH) AF: 0.00 AC: 0 AN: 2110

Alfa AF: 0.00 Hom.: 9

Bravo AF: 0.0000718

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.0

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs33993564; hg19: chr5-150226252;