Q318G0 (HEM6_PROM9) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names

Recommended name:
Coproporphyrinogen-III oxidase, aerobic
Short name=Coprogen oxidase
Short name=Coproporphyrinogenase
EC=1.3.3.3

Gene names

Name:	hemF
Ordered Locus Names:	PMT9312_1674

Organism

Prochlorococcus marinus (strain MIT 9312) [Complete proteome] [HAMAP]

Taxonomic identifier

74546 [NCBI]

Taxonomic lineage

Bacteria › Cyanobacteria › Prochlorophytes › Prochlorococcaceae › Prochlorococcus

Protein attributes

Sequence length	342 AA.
Sequence status	Complete.
Protein existence	Inferred from homology

General annotation (Comments)

Function	Key enzyme in heme biosynthesis. Catalyzes the oxidative decarboxylation of propionic acid side chains of rings A and B of coproporphyrinogen III By similarity. HAMAP MF_00333
Catalytic activity	Coproporphyrinogen-III + O2 + 2 H+ = protoporphyrinogen-IX + 2 CO2 + 2 H2O. HAMAP MF_00333
Pathway	Porphyrin metabolism; protoporphyrin-IX biosynthesis; protoporphyrinogen-IX from coproporphyrinogen-III (O2 route): step 1/1. HAMAP MF_00333
Subunit structure	Homodimer By similarity. HAMAP MF_00333
Subcellular location	Cytoplasm By similarity HAMAP MF_00333.
Sequence similarities	Belongs to the aerobic coproporphyrinogen-III oxidase family.

Ontologies

Keywords
Biological process	Porphyrin biosynthesis
Cellular component	Cytoplasm
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	porphyrin-containing compound biosynthetic process Inferred from electronic annotation. Source: UniProtKB-KW
Cellular component	cytoplasm Inferred from electronic annotation. Source: UniProtKB-SubCell
Molecular function	coproporphyrinogen oxidase activity Inferred from electronic annotation. Source: EC protein homodimerization activity Inferred from sequence or structural similarity. Source: UniProtKB
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 342	342	Coproporphyrinogen-III oxidase, aerobic HAMAP MF_00333		PRO_1000019479
Regions
	Region	54 – 63	10	Important for dimerization By similarity
	Region	114 – 116	3	Substrate binding By similarity
	Region	266 – 301	36	Important for dimerization By similarity
	Region	284 – 289	6	Substrate binding By similarity
Sites
	Active site	112	1	Proton donor By similarity
	Binding site	98	1	Substrate By similarity
	Site	176	1	Important for dimerization By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q318G0 [UniParc]. Last modified December 6, 2005. Version 1. Checksum: 317D7A7BF8D60B71	FASTA	342	39,538
	10 20 30 40 50 60 MLKEPPKNSR EKTKNLLLTL QDKICSGLEN IDGKGKFTEE SWLRDEGGGG RSRVLKNGSI 70 80 90 100 110 120 FEQAGVNFSE VQGKELPQSI ISQRPEAKGH EWFATGTSMV LHPKNPFIPT VHLNYRYFEA 130 140 150 160 170 180 GPVWWFGGGA DLTPFYPYLS DVRNFHKEHK KACEKVDKDL HKVFKPWCDE YFFLKHRNES 190 200 210 220 230 240 RGIGGIFYDY QDGSGNIYRG NNQNGEASKV SENIGKSNLN WDNLFSLAEN CGQAFLPSYL 250 260 270 280 290 300 PIIEKRANKT YTSKEREFQL YRRGRYVEFN LVWDRGTIFG LQTNGRTESI LMSLPPLARW 310 320 330 340 EYGYKAKKGS REEFLTSIFT KPQDWLNDKD LENFCMENNI FD

References

[1]

"Complete sequence of Prochlorococcus marinus str. MIT 9312." Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Thiel J., Schmutz J., Larimer F., Land M., Kyrpides N., Lykidis A., Richardson P. Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: MIT 9312.

Cross-references

Sequence databases
EMBL GenBank DDBJ	CP000111 Genomic DNA. Translation: ABB50735.1.
RefSeq	YP_398171.1. NC_007577.1.
3D structure databases
ProteinModelPortal	Q318G0.
ModBase	Search...
Protein-protein interaction databases
STRING	Q318G0.
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Genome annotation databases
GeneID	3766496.
GenomeReviews	Gene locus PMT9312_1674 in contig CP000111_GR.
KEGG	pmi:PMT9312_1674.
PATRIC	23007378. VBIProMar70153_1848.
Organism-specific databases
CMR	Search...
Phylogenomic databases
eggNOG	COG0408.
HOGENOM	HBG631180.
OMA	VFKPWCD.
PhylomeDB	Q318G0.
ProtClustDB	PRK05330.
Enzyme and pathway databases
BioCyc	PMAR74546:PMT9312_1674-MONOMER.
Family and domain databases
HAMAP	MF_00333. Coprogen_oxidas. [Tree]
InterPro	IPR001260. Coprogen_oxidase_aer. IPR018375. Coprogen_oxidase_CS. [Graphical view]
Gene3D	G3DSA:3.40.1500.10. Coprogen_oxidas. 1 hit.
KO	K00228.
PANTHER	PTHR10755. Coprogen_oxidas. 1 hit.
Pfam	PF01218. Coprogen_oxidas. 2 hits. [Graphical view]
PIRSF	PIRSF000166. Coproporphyri_ox. 1 hit.
PRINTS	PR00073. COPRGNOXDASE.
SUPFAM	SSF102886. Coprogen_oxidas. 1 hit.
PROSITE	PS01021. COPROGEN_OXIDASE. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

HEM6_PROM9

Accession

Primary (citable) accession number: Q318G0

Entry history

Integrated into UniProtKB/Swiss-Prot:	January 15, 2008
Last sequence update:	December 6, 2005
Last modified:	January 25, 2012
This is version 43 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Prokaryotic Protein Annotation Program