P51271 (HO_PORPU) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Heme oxygenase
EC=1.14.99.3

Gene names

Name:

pbsA

Encoded on

Plastid; Chloroplast

Organism

Porphyra purpurea

Taxonomic identifier

2787 [NCBI]

Taxonomic lineage

cellular organisms › Eukaryota › Rhodophyta › Bangiophyceae › Bangiales › Bangiaceae › Porphyra

Protein attributes

Sequence length	236 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Catalyzes the opening of the heme ring with the release of iron. Key enzyme in the synthesis of the chromophoric part of the photosynthetic antennae By similarity.
Catalytic activity	Heme + 3 AH2 + 3 O2 = biliverdin + Fe2+ + CO + 3 A + 3 H2O.
Subcellular location	Plastid › chloroplast.
Sequence similarities	Belongs to the heme oxygenase family.

Ontologies

Keywords
Biological process	Photosynthesis
Cellular component	Chloroplast Plastid
Ligand	Heme Iron Metal-binding
Molecular function	Oxidoreductase
Gene Ontology (GO)
Biological_process	heme oxidation Inferred from electronic annotation. Source: InterPro photosynthesis Inferred from electronic annotation. Source: UniProtKB-KW
Cellular_component	chloroplast Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular_function	heme oxygenase (decyclizing) activity Inferred from electronic annotation. Source: EC metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 236	236	Heme oxygenase		PRO_0000209699
Sites
	Metal binding	17	1	Iron (heme axial ligand) By similarity

Sequences

	Sequence		Length	Mass (Da)
	P51271 [UniParc]. Last modified October 1, 1996. Version 1. Checksum: 8C512D8C4DA2F0ED	FASTA	236	26,752
	10 20 30 40 50 60 MVSSLANELR EGTTKSHSMA ENVSFVKSFL GGVVDKKSYR KLIANLYFVY SAIEEEILLN 70 80 90 100 110 120 KDHPAIKPIY FTELNRKTSL AKDLNYYYGP DWLNIIEPSS ATQVYVNRIH NIGNKQPELL 130 140 150 160 170 180 VAHAYTRYLG DLSGGQVLKK IARGAMNLSD ERGTKFYDFD EIEDDKIFKN NYRSALDTIP 190 200 210 220 230 LSDEQVQNVV AEANISFTLN MKMFEELNSS IVKIITMIIV STVRKFTLKS ILATAD

References

[1]	"Complete nucleotide sequence of the Porphyra purpurea chloroplast genome." Reith M.E., Munholland J. Plant Mol. Biol. Rep. 13:333-335(1995) Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: Avonport.

Cross-references

Sequence databases
EMBL GenBank DDBJ	U38804 Genomic DNA. Translation: AAC08157.1.
PIR	S73192.
RefSeq	NP_053881.1. NC_000925.1.
3D structure databases
ProteinModelPortal	P51271.
SMR	P51271. Positions 4-220.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	809900.
Phylogenomic databases
ProtClustDB	CHL00168.
Family and domain databases
Gene3D	1.20.910.10. 1 hit.
InterPro	IPR002051. Haem_Oase. IPR016053. Haem_Oase-like. IPR016084. Haem_Oase-like_multi-hlx. IPR018207. Haem_oxygenase_CS. [Graphical view]
PANTHER	PTHR10720. PTHR10720. 1 hit.
Pfam	PF01126. Heme_oxygenase. 1 hit. [Graphical view]
PIRSF	PIRSF000343. Haem_Oase. 1 hit.
PRINTS	PR00088. HAEMOXYGNASE.
SUPFAM	SSF48613. Heme_oxygenase. 1 hit.
PROSITE	PS00593. HEME_OXYGENASE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

HO_PORPU

Accession

Primary (citable) accession number: P51271

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 1, 1996
Last sequence update:	October 1, 1996
Last modified:	March 6, 2013
This is version 58 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)