UniProtKB - E9QYP0 (SIDA_ASPFU)
L-ornithine N(5)-monooxygenase
sidA
Functioni
L-ornithine N5-monooxygenase; part of the siderophore biosynthetic pathway (PubMed:15504822, PubMed:16113265, PubMed:17845073, PubMed:20614882, PubMed:20650894, PubMed:22465572).
Aspergillus fumigatus produces four types of siderophores, low-molecular-mass iron chelators, including excreted fusarinine C (FsC) and triacetylfusarinine C (TAFC) for iron uptake; and intacellular ferricrocin (FC) for hyphal and hydroxyferricrocin (HFC) for conidial iron distribution and storage. TAFC consists of three N2-acetyl-N5-anhydromevalonyl-N5-hydroxyornithine residues cyclically linked by ester bonds; FC is a cyclic hexapeptide with the structure Gly-Ser-Gly-(N5-acetyl-N5-hydroxyornithine)x3. The biosynthesis of all four siderophores depends on the hydroxylation of ornithine, catalyzed by the monooxygenase sidA (PubMed:15504822, PubMed:16113265, PubMed:20614882, PubMed:20650894, PubMed:22465572).
SidA is highly specific for its substrate, only hydrolyzing l-ornithine, and has preference for NADPH over NADH, NADPH playing a role in stabilization of the C4a-hydroperoxyflavin intermediate (PubMed:20614882, PubMed:22465572).
Subsequently, the pathways for biosynthesis of extra- and intracellular siderophores split (PubMed:17845073).
For biosynthesis of extracellular siderophores, the transacylase sidF transfers anhydromevalonyl to N5-hydroxyornithine (PubMed:17845073).
The required anhydromevalonyl-CoA moiety is derived from mevalonate by CoA ligation and dehydration catalyzed by sidI and sidH respectively (PubMed:22106303).
The acetylation of N5-hydroxyornithine for FC biosynthesis involves the constitutively expressed sidL (PubMed:21622789).
FC is hydroxylated to HFC by an as yet uncharacterized enzyme during conidiation (PubMed:17845073).
Assembly of fusarinine C (FsC) and FC is catalyzed by two different nonribosomal peptide synthetases (NRPS), sidD and sidC respectively (PubMed:17845073).
Subsequently, sidG catalyzes N2-acetylation of FsC for forming TAFC (PubMed:17845073).
Both extra- and intracellular siderophores are crucial for growth during iron limitation and virulence (PubMed:16113265).
8 PublicationsCatalytic activityi
- EC:1.14.13.1962 Publications
- EC:1.14.13.1962 Publications
Cofactori
Kineticsi
- KM=1.7 mM for L-ornithine (in the presence of 1 mM NADH)1 Publication
- KM=1.7 mM for L-ornithine (in the presence of 1 mM NADPH)1 Publication
- KM=0.49 mM for L-ornithine (at 37 degrees Celsius)1 Publication
- KM=0.58 mM for L-ornithine (at 25 degrees Celsius)1 Publication
- KM=0.94 mM for NADPH (in the presence of 15 mM L-ornithine)1 Publication
- KM=0.90 mM for NADH (in the presence of 15 mM L-ornithine)1 Publication
- KM=4.6 µM for NADPH (at 37 degrees Celsius)1 Publication
- KM=2.6 µM for NADPH (at 25 degrees Celsius)1 Publication
- KM=18 µM for O2 (at 37 degrees Celsius)1 Publication
- KM=16 µM for O2 (at 25 degrees Celsius)1 Publication
: ferrichrome biosynthesis Pathwayi
This protein is involved in the pathway ferrichrome biosynthesis, which is part of Siderophore biosynthesis.6 PublicationsView all proteins of this organism that are known to be involved in the pathway ferrichrome biosynthesis and in Siderophore biosynthesis.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 102 | FAD; via amide nitrogen1 Publication | 1 | |
Binding sitei | 107 | Substrate1 Publication | 1 | |
Binding sitei | 168 | FAD; via amide nitrogen and carbonyl oxygen1 Publication | 1 | |
Binding sitei | 279 | NADP1 Publication | 1 | |
Binding sitei | 323 | Substrate1 Publication | 1 | |
Binding sitei | 469 | Substrate1 Publication | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 83 – 91 | FAD1 Publication | 9 | |
Nucleotide bindingi | 254 – 257 | NADP1 Publication | 4 | |
Nucleotide bindingi | 323 – 325 | NADP1 Publication | 3 | |
Nucleotide bindingi | 466 – 468 | FAD1 Publication | 3 |
GO - Molecular functioni
- iron ion binding Source: AspGD
- monooxygenase activity Source: AspGD
- N,N-dimethylaniline monooxygenase activity Source: AspGD
- NADP+ binding Source: AspGD
- ornithine N5-monooxygenase activity Source: RHEA
GO - Biological processi
- cellular iron ion homeostasis Source: AspGD
- cellular response to iron ion starvation Source: AspGD
- ergosterol biosynthetic process Source: AspGD
- ferrichrome biosynthetic process Source: UniProtKB-UniPathway
- secondary metabolite biosynthetic process Source: AspGD
- siderophore biosynthetic process Source: AspGD
- siderophore-dependent iron import into cell Source: AspGD
Keywordsi
Molecular function | Monooxygenase, Oxidoreductase |
Ligand | FAD, Flavoprotein, NADP, Nucleotide-binding |
Enzyme and pathway databases
BRENDAi | 1.14.13.195, 508 1.14.13.196, 508 |
UniPathwayi | UPA00783 |
Names & Taxonomyi
Protein namesi | Recommended name: L-ornithine N(5)-monooxygenase1 Publication (EC:1.14.13.1962 Publications)Short name: OMOBy similarity Alternative name(s): L-ornithine N(5)-oxygenase1 Publication Siderophore biosynthesis protein A1 Publication |
Gene namesi | Name:sidA1 Publication ORF Names:Afu2g07680 |
Organismi | Neosartorya fumigata (strain ATCC MYA-4609 / Af293 / CBS 101355 / FGSC A1100) (Aspergillus fumigatus) |
Taxonomic identifieri | 330879 [NCBI] |
Taxonomic lineagei | Eukaryota › Fungi › Dikarya › Ascomycota › Pezizomycotina › Eurotiomycetes › Eurotiomycetidae › Eurotiales › Aspergillaceae › Aspergillus › Aspergillus subgen. Fumigati › |
Proteomesi |
|
Organism-specific databases
VEuPathDBi | FungiDB:Afu2g07680 |
Pathology & Biotechi
Disruption phenotypei
Miscellaneous databases
PHI-basei | PHI:377 PHI:486 |
Chemistry databases
ChEMBLi | CHEMBL4295542 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000431070 | 1 – 501 | L-ornithine N(5)-monooxygenaseAdd BLAST | 501 |
Interactioni
Subunit structurei
Homotetramer.
1 PublicationProtein-protein interaction databases
STRINGi | 746128.CADAFUBP00002315 |
Structurei
Secondary structure
3D structure databases
AlphaFoldDBi | E9QYP0 |
SMRi | E9QYP0 |
ModBasei | Search... |
PDBe-KBi | Search... |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 1 – 31 | DisorderedSequence analysisAdd BLAST | 31 | |
Regioni | 293 – 296 | Substrate binding1 Publication | 4 | |
Regioni | 366 – 390 | DisorderedSequence analysisAdd BLAST | 25 |
Sequence similaritiesi
Phylogenomic databases
eggNOGi | KOG1399, Eukaryota |
HOGENOMi | CLU_020931_2_0_1 |
InParanoidi | E9QYP0 |
OMAi | YHGNTNY |
OrthoDBi | 1235295at2759 |
Family and domain databases
Gene3Di | 3.50.50.60, 1 hit |
InterProi | View protein in InterPro IPR036188, FAD/NAD-bd_sf IPR025700, Lys/Orn_oxygenase |
PANTHERi | PTHR42802, PTHR42802, 1 hit |
Pfami | View protein in Pfam PF13434, K_oxygenase, 1 hit |
SUPFAMi | SSF51905, SSF51905, 1 hit |
i Sequence
Sequence statusi: Complete.
10 20 30 40 50
MESVERKSES SYLGMRNMQP EQRLSLDPPR LRSTPQDELH DLLCVGFGPA
60 70 80 90 100
SLAIAIALHD ALDPRLNKSA SNIHAQPKIC FLERQKQFAW HSGMLVPGSK
110 120 130 140 150
MQISFIKDLA TLRDPRSSFT FLNYLHQKGR LIHFTNLSTF LPARLEFEDY
160 170 180 190 200
MRWCAQQFSD VVAYGEEVVE VIPGKSDPSS SVVDFFTVRS RNVETGEISA
210 220 230 240 250
RRTRKVVIAI GGTAKMPSGL PQDPRIIHSS KYCTTLPALL KDKSKPYNIA
260 270 280 290 300
VLGSGQSAAE IFHDLQKRYP NSRTTLIMRD SAMRPSDDSP FVNEIFNPER
310 320 330 340 350
VDKFYSQSAA ERQRSLLADK ATNYSVVRLE LIEEIYNDMY LQRVKNPDET
360 370 380 390 400
QWQHRILPER KITRVEHHGP QSRMRIHLKS SKPESEGAAN DVKETLEVDA
410 420 430 440 450
LMVATGYNRN AHERLLSKVQ HLRPTGQDQW KPHRDYRVEM DPSKVSSEAG
460 470 480 490 500
IWLQGCNERT HGLSDSLLSV LAVRGGEMVQ SIFGEQLERA AVQGHQLRAM
L
Mass spectrometryi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY586511 Genomic DNA Translation: AAT84594.1 AY819708 Genomic DNA Translation: AAX40989.1 AAHF01000001 Genomic DNA Translation: EAL93065.1 |
RefSeqi | XP_755103.1, XM_750010.1 |
Genome annotation databases
EnsemblFungii | EAL93065; EAL93065; AFUA_2G07680 |
GeneIDi | 3513640 |
KEGGi | afm:AFUA_2G07680 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY586511 Genomic DNA Translation: AAT84594.1 AY819708 Genomic DNA Translation: AAX40989.1 AAHF01000001 Genomic DNA Translation: EAL93065.1 |
RefSeqi | XP_755103.1, XM_750010.1 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
4B63 | X-ray | 1.90 | A | 1-501 | [»] | |
4B64 | X-ray | 2.28 | A | 1-501 | [»] | |
4B65 | X-ray | 2.32 | A | 1-501 | [»] | |
4B66 | X-ray | 2.90 | A | 1-501 | [»] | |
4B67 | X-ray | 2.75 | A | 1-501 | [»] | |
4B68 | X-ray | 2.29 | A | 1-501 | [»] | |
4B69 | X-ray | 2.30 | A | 1-501 | [»] | |
4NZH | X-ray | 2.00 | A | 1-501 | [»] | |
5CKU | X-ray | 2.10 | A | 1-501 | [»] | |
6X0H | X-ray | 2.09 | A/B/C/D | 29-501 | [»] | |
6X0I | X-ray | 1.95 | A/B/C/D | 1-501 | [»] | |
6X0J | X-ray | 2.33 | A/B/C/D | 29-501 | [»] | |
6X0K | X-ray | 2.23 | A/B/C/D/E/F/G/H | 29-501 | [»] | |
7JVK | X-ray | 2.20 | A/B/C/D | 1-501 | [»] | |
7JVL | X-ray | 2.10 | A/B/C/D | 1-501 | [»] | |
AlphaFoldDBi | E9QYP0 | |||||
SMRi | E9QYP0 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
STRINGi | 746128.CADAFUBP00002315 |
Chemistry databases
ChEMBLi | CHEMBL4295542 |
Genome annotation databases
EnsemblFungii | EAL93065; EAL93065; AFUA_2G07680 |
GeneIDi | 3513640 |
KEGGi | afm:AFUA_2G07680 |
Organism-specific databases
VEuPathDBi | FungiDB:Afu2g07680 |
Phylogenomic databases
eggNOGi | KOG1399, Eukaryota |
HOGENOMi | CLU_020931_2_0_1 |
InParanoidi | E9QYP0 |
OMAi | YHGNTNY |
OrthoDBi | 1235295at2759 |
Enzyme and pathway databases
UniPathwayi | UPA00783 |
BRENDAi | 1.14.13.195, 508 1.14.13.196, 508 |
Miscellaneous databases
PHI-basei | PHI:377 PHI:486 |
Family and domain databases
Gene3Di | 3.50.50.60, 1 hit |
InterProi | View protein in InterPro IPR036188, FAD/NAD-bd_sf IPR025700, Lys/Orn_oxygenase |
PANTHERi | PTHR42802, PTHR42802, 1 hit |
Pfami | View protein in Pfam PF13434, K_oxygenase, 1 hit |
SUPFAMi | SSF51905, SSF51905, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | SIDA_ASPFU | |
Accessioni | E9QYP0Primary (citable) accession number: E9QYP0 Secondary accession number(s): Q4X250, Q5SE95 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 26, 2014 |
Last sequence update: | April 5, 2011 | |
Last modified: | May 25, 2022 | |
This is version 64 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Fungal Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structure, Reference proteomeDocuments
- PATHWAY comments
Index of metabolic and biosynthesis pathways - PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families