Reviewed, UniProtKB/Swiss-Prot P09601 (HMOX1_HUMAN)

Names and origin

Protein names

Recommended name:
    Heme oxygenase 1
      Short name=HO-1
    EC=1.14.99.3

Gene names

Name:	HMOX1
Synonyms:	HO, HO1

Organism

Homo sapiens (Human) [Complete proteome]

Taxonomic identifier

9606 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo

Protein attributes

Sequence length	288 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Evidence at protein level.

General annotation (Comments)

Function	Heme oxygenase cleaves the heme ring at the alpha methene bridge to form biliverdin. Biliverdin is subsequently converted to bilirubin by biliverdin reductase. Under physiological conditions, the activity of heme oxygenase is highest in the spleen, where senescent erythrocytes are sequestrated and destroyed.
Catalytic activity	Heme + 3 AH2 + 3 O2 = biliverdin + Fe2+ + CO + 3 A + 3 H2O.
Subcellular location	Microsome. Endoplasmic reticulum.
Induction	Heme oxygenase 1 activity is highly inducible by its substrate heme and by various non-heme substances such as heavy metals, bromobenzene, endotoxin, oxidizing agents and UVA.
Sequence similarities	Belongs to the heme oxygenase family.

Ontologies

Keywords
Cellular component	Endoplasmic reticulum Microsome
Coding sequence diversity	Polymorphism
Ligand	Heme Iron Metal-binding
Molecular function	Oxidoreductase
PTM	Phosphoprotein
Technical term	3D-structure Complete proteome
Gene Ontology (GO)
Biological process	angiogenesis Traceable author statement. Source: UniProtKB anti-apoptosis Inferred from mutant phenotype. Source: UniProtKB cell death Inferred from sequence or structural similarity. Source: UniProtKB endothelial cell proliferation Traceable author statement. Source: UniProtKB erythrocyte homeostasis Inferred from mutant phenotype. Source: UniProtKB excretion Inferred by curator. Source: UniProtKB healing during inflammatory response Inferred from mutant phenotype. Source: UniProtKB heme catabolic process Inferred from direct assay. Source: UniProtKB heme oxidation Inferred from direct assay. Source: UniProtKB iron ion homeostasis Inferred from direct assay. Source: UniProtKB low-density lipoprotein particle clearance Traceable author statement. Source: UniProtKB negative regulation of leukocyte migration Traceable author statement. Source: UniProtKB oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW positive regulation of I-kappaB kinase/NF-kappaB cascade Inferred from mutant phenotype. Source: UniProtKB positive regulation of chemokine biosynthetic process Traceable author statement. Source: UniProtKB positive regulation of vasodilation Inferred by curator. Source: UniProtKB protein kinase cascade Traceable author statement. Source: UniProtKB regulation of angiogenesis Traceable author statement. Source: UniProtKB regulation of transcription from RNA polymerase II promoter in response to oxidative stress Inferred from sequence or structural similarity. Source: UniProtKB response to hydrogen peroxide Inferred from sequence or structural similarity. Source: UniProtKB response to nicotine Inferred from direct assay. Source: UniProtKB smooth muscle hyperplasia Traceable author statement. Source: UniProtKB
Cellular component	endoplasmic reticulum Ref.1 Inferred from sequence or structural similarity. Source: UniProtKB extracellular space Traceable author statement. Source: UniProtKB microsome Inferred from sequence or structural similarity. Source: UniProtKB
Molecular function	enzyme binding Inferred from sequence or structural similarity. Source: UniProtKB heme binding Inferred from direct assay. Source: UniProtKB heme oxygenase (decyclizing) activity Inferred from direct assay. Source: UniProtKB signal transducer activity Inferred from mutant phenotype. Source: UniProtKB
Complete GO annotation...

Sequence annotation (Features)

Feature key

Position(s)

Length

Description

Graphical view

Feature identifier

Molecule processing

Chain

1 – 288

288

Heme oxygenase 1

PRO_0000209687

Sites

Metal binding

25

1

Iron (heme axial ligand)

Amino acid modifications

Modified residue

229

1

Phosphoserine Ref.7

Natural variations

Natural variant

7

1

D → H: dbSNP rs2071747. Ref.3

VAR_019165

Natural variant

106

1

P → L: dbSNP rs9282702.

VAR_022156

Secondary structure

1

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288

Helix Strand Turn

Details...

Helix

6 – 8

3

Helix

13 – 20

8

Helix

22 – 30

9

Helix

32 – 38

7

Helix

44 – 68

25

Turn

72 – 74

3

Helix

75 – 77

3

Helix

80 – 83

4

Helix

86 – 97

12

Helix

101 – 103

3

Helix

109 – 124

16

Helix

126 – 128

3

Helix

129 – 155

27

Helix

165 – 167

3

Helix

175 – 188

14

Helix

193 – 220

28

Sequences

	Sequence		Length	Mass (Da)
	P09601-1 [UniParc]. Last modified July 1, 1989. Version 1. Checksum: AB47827778694064	FASTA	288	32,819
	10 20 30 40 50 60 MERPQPDSMP QDLSEALKEA TKEVHTQAEN AEFMRNFQKG QVTRDGFKLV MASLYHIYVA 70 80 90 100 110 120 LEEEIERNKE SPVFAPVYFP EELHRKAALE QDLAFWYGPR WQEVIPYTPA MQRYVKRLHE 130 140 150 160 170 180 VGRTEPELLV AHAYTRYLGD LSGGQVLKKI AQKALDLPSS GEGLAFFTFP NIASATKFKQ 190 200 210 220 230 240 LYRSRMNSLE MTPAVRQRVI EEAKTAFLLN IQLFEELQEL LTHDTKDQSP SRAPGLRQRA 250 260 270 280 SNKVQDSAPV ETPRGKPPLN TRSQAPLLRW VLTLSFLVAT VAVGLYAM

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Human heme oxygenase cDNA and induction of its mRNA by hemin." Yoshida T., Biro P., Cohen T., Mueller R.M., Shibahara S. Eur. J. Biochem. 171:457-461(1988) [PubMed: 3345742] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA].
[2]	"A genome annotation-driven approach to cloning the human ORFeome." Collins J.E., Wright C.L., Edwards C.A., Davis M.P., Grinham J.A., Cole C.G., Goward M.E., Aguado B., Mallya M., Mokrab Y., Huckle E.J., Beare D.M., Dunham I. Genome Biol. 5:RESEARCH84.1-RESEARCH84.11(2004) [PubMed: 15461802] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[3]	SeattleSNPs variation discovery resource Submitted (NOV-2003) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], VARIANT HIS-7.
[4]	"The DNA sequence of human chromosome 22." Dunham I., Hunt A.R., Collins J.E., Bruskiewich R., Beare D.M., Clamp M., Smink L.J., Ainscough R., Almeida J.P., Babbage A.K., Bagguley C., Bailey J., Barlow K.F., Bates K.N., Beasley O.P., Bird C.P., Blakey S.E., Bridgeman A.M. , Buck D., Burgess J., Burrill W.D., Burton J., Carder C., Carter N.P., Chen Y., Clark G., Clegg S.M., Cobley V.E., Cole C.G., Collier R.E., Connor R., Conroy D., Corby N.R., Coville G.J., Cox A.V., Davis J., Dawson E., Dhami P.D., Dockree C., Dodsworth S.J., Durbin R.M., Ellington A.G., Evans K.L., Fey J.M., Fleming K., French L., Garner A.A., Gilbert J.G.R., Goward M.E., Grafham D.V., Griffiths M.N.D., Hall C., Hall R.E., Hall-Tamlyn G., Heathcott R.W., Ho S., Holmes S., Hunt S.E., Jones M.C., Kershaw J., Kimberley A.M., King A., Laird G.K., Langford C.F., Leversha M.A., Lloyd C., Lloyd D.M., Martyn I.D., Mashreghi-Mohammadi M., Matthews L.H., Mccann O.T., Mcclay J., Mclaren S., McMurray A.A., Milne S.A., Mortimore B.J., Odell C.N., Pavitt R., Pearce A.V., Pearson D., Phillimore B.J.C.T., Phillips S.H., Plumb R.W., Ramsay H., Ramsey Y., Rogers L., Ross M.T., Scott C.E., Sehra H.K., Skuce C.D., Smalley S., Smith M.L., Soderlund C., Spragon L., Steward C.A., Sulston J.E., Swann R.M., Vaudin M., Wall M., Wallis J.M., Whiteley M.N., Willey D.L., Williams L., Williams S.A., Williamson H., Wilmer T.E., Wilming L., Wright C.L., Hubbard T., Bentley D.R., Beck S., Rogers J., Shimizu N., Minoshima S., Kawasaki K., Sasaki T., Asakawa S., Kudoh J., Shintani A., Shibuya K., Yoshizaki Y., Aoki N., Mitsuyama S., Roe B.A., Chen F., Chu L., Crabtree J., Deschamps S., Do A., Do T., Dorman A., Fang F., Fu Y., Hu P., Hua A., Kenton S., Lai H., Lao H.I., Lewis J., Lewis S., Lin S.-P., Loh P., Malaj E., Nguyen T., Pan H., Phan S., Qi S., Qian Y., Ray L., Ren Q., Shaull S., Sloan D., Song L., Wang Q., Wang Y., Wang Z., White J., Willingham D., Wu H., Yao Z., Zhan M., Zhang G., Chissoe S., Murray J., Miller N., Minx P., Fulton R., Johnson D., Bemis G., Bentley D., Bradshaw H., Bourne S., Cordes M., Du Z., Fulton L., Goela D., Graves T., Hawkins J., Hinds K., Kemp K., Latreille P., Layman D., Ozersky P., Rohlfing T., Scheet P., Walker C., Wamsley A., Wohldmann P., Pepin K., Nelson J., Korf I., Bedell J.A., Hillier L.W., Mardis E., Waterston R., Wilson R., Emanuel B.S., Shaikh T., Kurahashi H., Saitta S., Budarf M.L., McDermid H.E., Johnson A., Wong A.C.C., Morrow B.E., Edelmann L., Kim U.J., Shizuya H., Simon M.I., Dumanski J.P., Peyrard M., Kedra D., Seroussi E., Fransson I., Tapia I., Bruder C.E., O'Brien K.P., Wilkinson P., Bodenteich A., Hartman K., Hu X., Khan A.S., Lane L., Tilahun Y., Wright H. Nature 402:489-495(1999) [PubMed: 10591208] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[5]	"Heme oxygenase is the major 32-kDa stress protein induced in human skin fibroblasts by UVA radiation, hydrogen peroxide, and sodium arsenite." Keyse S.M., Tyrrell R.M. Proc. Natl. Acad. Sci. U.S.A. 86:99-103(1989) [PubMed: 2911585] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 1-103. Tissue: Foreskin.
[6]	"Structural organization of the human heme oxygenase gene and the function of its promoter." Shibahara S., Sato M., Muller R.M., Yoshida T. Eur. J. Biochem. 179:557-563(1989) [PubMed: 2537723] [Abstract] Cited for: NUCLEOTIDE SEQUENCE OF 1-7.
[7]	"Global, in vivo, and site-specific phosphorylation dynamics in signaling networks." Olsen J.V., Blagoev B., Gnad F., Macek B., Kumar C., Mortensen P., Mann M. Cell 127:635-648(2006) [PubMed: 17081983] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-229, MASS SPECTROMETRY. Tissue: Epithelium.
[8]	"Crystal structure of human heme oxygenase-1." Schuller D.J., Wilks A., Ortiz de Montellano P.R., Poulos T.L. Nat. Struct. Biol. 6:860-867(1999) [PubMed: 10467099] [Abstract] Cited for: X-RAY CRYSTALLOGRAPHY (2.08 ANGSTROMS).
+	Additional computationally mapped references.

Web resources

SeattleSNPs

Cross-references

Sequence databases

EMBLGenBankDDBJ

X06985 mRNA. Translation: CAA30045.1.
CR456505 mRNA. Translation: CAG30391.1.
AY460337 Genomic DNA. Translation: AAR23262.1.
Z82244 Genomic DNA. Translation: CAB05109.1.
M23041 mRNA. Translation: AAA50403.1.
X14782 Genomic DNA. Translation: CAA32886.1.

IPI

IPI00215893.

PIR

S00325.

RefSeq

NP_002124.1.

UniGene

Hs.517581

3D structure databases

PDBPDBe

Entry	Method	Resolution (Å)	Chain	Positions	PDBsum
1N3U	X-ray	2.58	A/B	1-233	[»]
1N45	X-ray	1.50	A/B	1-233	[»]
1NI6	X-ray	2.10	A/B/C/D	1-224	[»]
1OYK	X-ray	2.59	A/B	1-233	[»]
1OYL	X-ray	1.59	A/B	1-233	[»]
1OZE	X-ray	2.19	A/B	1-233	[»]
1OZL	X-ray	1.58	A/B	1-233	[»]
1OZR	X-ray	1.74	A/B	1-233	[»]
1OZW	X-ray	1.55	A/B	1-233	[»]
1S13	X-ray	2.29	A/B	1-233	[»]
1S8C	X-ray	2.19	A/B/C/D	1-233	[»]
1T5P	X-ray	2.11	A/B	1-233	[»]
1TWN	X-ray	2.20	A/B	1-233	[»]
1TWR	X-ray	2.10	A/B	1-233	[»]
1XJZ	X-ray	1.88	A/B	1-233	[»]
1XK0	X-ray	2.18	A/B	1-233	[»]
1XK1	X-ray	2.08	A/B	1-233	[»]
1XK2	X-ray	2.20	A/B	1-233	[»]
1XK3	X-ray	2.08	A/B	1-233	[»]
3CZY	X-ray	1.54	A/B	1-233	[»]

ModBase

Search...

PTM databases

PhosphoSite

P09601.

Proteomic databases

PRIDE

P09601.

Genome annotation databases

Ensembl

ENSG00000100292. Homo sapiens. [Contig view]

GeneID

3162.

KEGG

hsa:3162.

UCSC

uc003ant.1. human.

Organism-specific databases

GeneCards

GC22P034101.

H-InvDB

HIX0016414.

HGNC

HGNC:5013. HMOX1.

HPA

CAB017444.
HPA000635.

MIM

141250. gene+phenotype.

PharmGKB

PA29341.

GenAtlas

Search...

Phylogenomic databases

HOGENOM

P09601.

HOVERGEN

P09601.

OMA

P09601. LEQDMAF.

Enzyme and pathway databases

BioCyc

MetaCyc:MON-13861.

BRENDA

1.14.99.3. 247.

Pathway_Interaction_DB

hif1_tfpathway. HIF-1-alpha transcription factor network.

Gene expression databases

ArrayExpress

P09601.

Bgee

P09601.

CleanEx

HS_HMOX1.

GermOnline

ENSG00000100292. Homo sapiens.

Family and domain databases

InterPro

IPR002051. Haem_Oase.
IPR016053. Haem_Oase-like.
IPR016084. Haem_Oase-like_multi-hlx.
IPR018207. Haem_oxygenase_CS.
[Graphical view]

Gene3D

G3DSA:1.20.910.10. Haem_Oase-like_multi-hlx. 1 hit.

PANTHER

PTHR10720. Haem_Oase. 1 hit.

Pfam

PF01126. Heme_oxygenase. 1 hit.
[Graphical view]

PIRSF

PIRSF000343. Haem_Oase. 1 hit.

PRINTS

PR00088. HAEMOXYGNASE.

PROSITE

PS00593. HEME_OXYGENASE. 1 hit.
[Graphical view]

ProtoNet

Search...

Other Resources

DrugBank

DB00157. NADH.

NextBio

12538.

SOURCE

Search...

Entry information

Entry name

HMOX1_HUMAN

Accession

Primary (citable) accession number: P09601

Entry history

Integrated into UniProtKB/Swiss-Prot:	July 1, 1989
Last sequence update:	July 1, 1989
Last modified:	July 7, 2009
This is version 104 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)