Reviewed, UniProtKB/Swiss-Prot Q6D245 (HMP_ERWCT)

Names and origin

Protein names

Recommended name:
    Flavohemoprotein
Alternative name(s):
    Hemoglobin-like protein
    Flavohemoglobin
    Nitric oxide dioxygenase
      Short name=NO oxygenase
      Short name=NOD
    EC=1.14.12.17

Gene names

Name:	hmp
Ordered Locus Names:	ECA3251

Organism

Erwinia carotovora subsp. atroseptica (Pectobacterium atrosepticum) [Complete proteome] [HAMAP]

Taxonomic identifier

29471 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacteriales › Enterobacteriaceae › Pectobacterium

Protein attributes

Sequence length	396 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Is involved in NO detoxification in an aerobic process, termed nitric oxide dioxygenase (NOD) reaction that utilizes O(2) and NAD(P)H to convert NO to nitrate, which protects the bacterium from various noxious nitrogen compounds. Therefore, plays a central role in the inducible response to nitrosative stress By similarity.
Catalytic activity	2 NO + 2 O(2) + NAD(P)H = 2 NO(3)(-) + NAD(P)(+).
Cofactor	Binds 1 heme B (iron-protoporphyrin IX) group per subunit By similarity. Binds 1 FAD per subunit By similarity.
Domain	Consists of two distinct domains; an N-terminal heme-containing oxygen-binding domain and a C-terminal reductase domain with binding sites for FAD and NAD(P)H.
Sequence similarities	Belongs to the globin family. Two-domain flavohemoproteins subfamily. In the C-terminal section; belongs to the flavoprotein pyridine nucleotide cytochrome reductase family. Contains 1 FAD-binding FR-type domain.

Ontologies

Keywords
Biological process	Detoxification Oxygen transport Transport
Ligand	FAD Flavoprotein Heme Iron Metal-binding NAD NADP
Molecular function	Oxidoreductase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	oxidation reduction Inferred from electronic annotation. Source: UniProtKB-KW oxygen transport Inferred from electronic annotation. Source: HAMAP response to toxin Inferred from electronic annotation. Source: UniProtKB-KW
Molecular function	electron carrier activity Inferred from electronic annotation. Source: InterPro heme binding Inferred from electronic annotation. Source: InterPro iron ion binding Inferred from electronic annotation. Source: InterPro nitric oxide dioxygenase activity Inferred from electronic annotation. Source: HAMAP oxygen binding Inferred from electronic annotation. Source: InterPro oxygen transporter activity Inferred from electronic annotation. Source: HAMAP
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 396	396	Flavohemoprotein		PRO_0000052435
Regions
	Domain	150 – 255	106	FAD-binding FR-type
	Nucleotide binding	204 – 207	4	FAD By similarity
	Nucleotide binding	268 – 273	6	NADP By similarity
	Nucleotide binding	389 – 392	4	FAD By similarity
	Region	1 – 138	138	Globin
	Region	147 – 396	250	Reductase
	Region	259 – 396	138	NAD or NADP-binding
Sites
	Active site	95	1	Charge relay system By similarity
	Active site	135	1	Charge relay system By similarity
	Metal binding	85	1	Iron (heme proximal ligand) By similarity
	Binding site	188	1	FAD By similarity
	Site	29	1	Involved in heme-bound ligand stabilization and O-O bond activation By similarity
	Site	84	1	Influences the redox potential of the prosthetic heme and FAD groups By similarity
	Site	388	1	Influences the redox potential of the prosthetic heme and FAD groups By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q6D245-1 [UniParc]. Last modified August 16, 2004. Version 1. Checksum: 7F2185F0FA36F34B	FASTA	396	44,356
	10 20 30 40 50 60 MLDNHTIAIV KSTIPLLAET GPKLTAHFYD RMFTHNPELK DIFNMSNQRN GDQREALFNA 70 80 90 100 110 120 ICAYATNIEN LAALLPAVER IAQKHTSFNI QADQYQIVGN HLLATLDEMF SPGQEVLDAW 130 140 150 160 170 180 GKAYGVLANV FIQREDDIYR STETKTGGWS GVRPFRIVNK QLQSSVITSF TLEPTDGQPI 190 200 210 220 230 240 ADFQPGQYLA IYIKHDSFAN QEIRQYSLTH APNGKSYRIA VKREAQGTVS GYLHDTAREG 250 260 270 280 290 300 DIVHLAAPHG DFFLDIPTDT PVALISGGVG QTPMLGMLHT LKQQDHQAKV LWLHAAENGT 310 320 330 340 350 360 AHAFTDEIEQ TGQALPHFDH HIWYREPQQT DRPGEDYHHS GLMQLASLKG ELTTPDMHYY 370 380 390 LCGPVVFMQF VAQQLLAMGI PAEQLHYECF GPHKVV

References

[1]

"Genome sequence of the enterobacterial phytopathogen Erwinia carotovora subsp. atroseptica and characterization of virulence factors." Bell K.S., Sebaihia M., Pritchard L., Holden M.T.G., Hyman L.J., Holeva M.C., Thomson N.R., Bentley S.D., Churcher L.J.C., Mungall K., Atkin R., Bason N., Brooks K., Chillingworth T., Clark K., Doggett J., Fraser A., Hance Z. , Hauser H., Jagels K., Moule S., Norbertczak H., Ormond D., Price C., Quail M.A., Sanders M., Walker D., Whitehead S., Salmond G.P.C., Birch P.R.J., Parkhill J., Toth I.K. Proc. Natl. Acad. Sci. U.S.A. 101:11105-11110(2004) [PubMed: 15263089] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. Strain: SCRI 1043 / ATCC BAA-672.

Cross-references

Sequence databases
EMBLGenBankDDBJ	BX950851 Genomic DNA. Translation: CAG76149.1.
RefSeq	YP_051340.1.
3D structure databases
ModBase	Search...
Genome annotation databases
GeneID	2881853.
GenomeReviews	Gene locus ECA3251 in contig BX950851_GR.
KEGG	eca:ECA3251.
NMPDR	fig|218491.3.peg.1953.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q6D245.
Enzyme and pathway databases
BioCyc	ECAR218491:ECA3251-MON.
Family and domain databases
HAMAP	MF_01252. [Tree]
InterPro	IPR001709. FPN_cyt_redctse. IPR012292. Globin. IPR000971. Globin_subset. IPR008333. OxRdtase_FAD-bd. IPR001433. OxRdtase_FAD/NAD_bd. IPR001221. Phe_hydroxylase. [Graphical view]
Gene3D	G3DSA:1.10.490.10. Globin_related. 1 hit.
Pfam	PF00970. FAD_binding_6. 1 hit. PF00042. Globin. 1 hit. PF00175. NAD_binding_1. 1 hit. [Graphical view]
PRINTS	PR00371. FPNCR. PR00410. PHEHYDRXLASE.
PROSITE	PS51384. FAD_FR. 1 hit. PS01033. GLOBIN. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

HMP_ERWCT

Accession

Primary (citable) accession number: Q6D245

Entry history

Integrated into UniProtKB/Swiss-Prot:	October 25, 2005
Last sequence update:	August 16, 2004
Last modified:	November 25, 2008
This is version 33 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)