rs9306300

Variant names:

• chr22-35382285-A-G
• rs9306300
• NM_002133.3:c.24-821A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002133.3(HMOX1):​c.24-821A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.16 in 152,034 control chromosomes in the GnomAD database, including 4,183 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 0.16 (4183 hom., cov: 32)
• Consequence: HMOX1 NM_002133.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.918
• Publications: 5 publications found

Genes affected

HMOX1 (HGNC:5013): (heme oxygenase 1) Heme oxygenase, an essential enzyme in heme catabolism, cleaves heme to form biliverdin, which is subsequently converted to bilirubin by biliverdin reductase, and carbon monoxide, a putative neurotransmitter. Heme oxygenase activity is induced by its substrate heme and by various nonheme substances. Heme oxygenase occurs as 2 isozymes, an inducible heme oxygenase-1 and a constitutive heme oxygenase-2. HMOX1 and HMOX2 belong to the heme oxygenase family. [provided by RefSeq, Jul 2008]

HMOX1 Gene-Disease associations (from GenCC):

• heme oxygenase 1 deficiency

  Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics, Orphanet
• cystic fibrosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• chronic obstructive pulmonary disease

  Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.0).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.43 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HMOX1	NM_002133.3	c.24-821A>G		intron_variant	Intron 1 of 4	ENST00000216117.9	NP_002124.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HMOX1	ENST00000216117.9	c.24-821A>G		intron_variant	Intron 1 of 4	1	NM_002133.3	ENSP00000216117.8

Frequencies

GnomAD3 genomes AF: 0.160 AC: 24339 AN: 151916 Hom.: 4174 Cov.: 32

Gnomad AFR AF: 0.435

Gnomad AMI AF: 0.102

Gnomad AMR AF: 0.0905

Gnomad ASJ AF: 0.0441

Gnomad EAS AF: 0.0406

Gnomad SAS AF: 0.100

Gnomad FIN AF: 0.0136

Gnomad MID AF: 0.101

Gnomad NFE AF: 0.0529

Gnomad OTH AF: 0.132

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

GnomAD4 genome AF: 0.160 AC: 24393 AN: 152034 Hom.: 4183 Cov.: 32 AF XY: 0.155 AC XY: 11493 AN XY: 74328

African (AFR) AF: 0.435 AC: 18024 AN: 41410

American (AMR) AF: 0.0904 AC: 1380 AN: 15266

Ashkenazi Jewish (ASJ) AF: 0.0441 AC: 153 AN: 3470

East Asian (EAS) AF: 0.0405 AC: 210 AN: 5186

South Asian (SAS) AF: 0.100 AC: 484 AN: 4826

European-Finnish (FIN) AF: 0.0136 AC: 144 AN: 10578

Middle Eastern (MID) AF: 0.112 AC: 33 AN: 294

European-Non Finnish (NFE) AF: 0.0529 AC: 3597 AN: 67994

Other (OTH) AF: 0.131 AC: 275 AN: 2102

Alfa AF: 0.108 Hom.: 836

Bravo AF: 0.178

Asia WGS AF: 0.102 AC: 359 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	2.0
DANN	Benign	0.74
PhyloP100		-0.92
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs9306300; hg19: chr22-35778278;