UniProtKB - P95480 (PRNA_PSEFL)
Protein
Flavin-dependent tryptophan halogenase PrnA
Gene
prnA
Organism
Pseudomonas fluorescens
Status
Functioni
Involved in the biosynthesis of the antifungal antibiotic pyrrolnitrin. Catalyzes the chlorination of tryptophan (Trp) at C7 position to yield 7-chloro-L-tryptophan (7-CLT). The reaction between FADH2, Cl-, and O2 generates the powerful oxidant HOCl, which is presumed to carry out the chlorination reaction. The reaction of HOCl with the active site Lys-79 generates a lysine chloramine, which plays a key role in directing regiospecific chlorination of substrate in this important class of biosynthetic enzymes. It is also able to use bromide ions to generate monobrominated Trp.3 Publications
Catalytic activityi
- EC:1.14.19.91 Publication
Kineticsi
- KM=17.1 µM for tryptophan (with FAD at pH 7.2 and 30 degrees Celsius)1 Publication
- Vmax=43 pmol/min/mg enzyme1 Publication
: Antibiotic biosynthesis Pathwayi
This protein is involved in Antibiotic biosynthesis.View all proteins of this organism that are known to be involved in Antibiotic biosynthesis.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 79 | 1 Publication | 1 | |
Binding sitei | 79 | L-tryptophan | 1 | |
Sitei | 79 | Role in guiding and activating HOCl | 1 | |
Binding sitei | 187 | FAD; via amide nitrogen and carbonyl oxygen2 Publications | 1 | |
Binding sitei | 337 | FAD; via amide nitrogen2 Publications | 1 | |
Binding sitei | 346 | L-tryptophan; via carbonyl oxygen | 1 | |
Sitei | 346 | Role in stabilization and deprotonation of the intermediate | 1 | |
Binding sitei | 350 | FAD; via amide nitrogen2 Publications | 1 | |
Binding sitei | 450 | L-tryptophan | 1 | |
Binding sitei | 454 | L-tryptophan; via carbonyl oxygen | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 13 – 16 | FAD2 Publications | 4 | |
Nucleotide bindingi | 39 – 50 | FAD2 PublicationsAdd BLAST | 12 |
GO - Molecular functioni
- nucleotide binding Source: UniProtKB-KW
- oxidoreductase activity Source: UniProtKB-KW
GO - Biological processi
- antibiotic biosynthetic process Source: UniProtKB-KW
Keywordsi
Molecular function | Oxidoreductase |
Biological process | Antibiotic biosynthesis |
Ligand | FAD, Flavoprotein, Nucleotide-binding |
Enzyme and pathway databases
BioCyci | MetaCyc:MONOMER-16710 |
BRENDAi | 1.14.14.7, 5121 |
SABIO-RKi | P95480 |
Names & Taxonomyi
Protein namesi | |
Gene namesi | Name:prnA |
Organismi | Pseudomonas fluorescens |
Taxonomic identifieri | 294 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Pseudomonadales › Pseudomonadaceae › Pseudomonas › |
Pathology & Biotechi
Disruption phenotypei
Cells lacking this gene lose the ability to produce pyrrolnitrin.2 Publications
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 79 | K → A: Loss of halogenase activity. 1 Publication | 1 | |
Mutagenesisi | 272 | W → A: No change in halogenase activity. 1 Publication | 1 | |
Mutagenesisi | 272 | W → F: No change in halogenase activity. 1 Publication | 1 | |
Mutagenesisi | 274 | W → A: No change in halogenase activity. 1 Publication | 1 | |
Mutagenesisi | 274 | W → F: No change in halogenase activity. 1 Publication | 1 | |
Mutagenesisi | 346 | E → D: Loss of halogenase activity. 2 Publications | 1 | |
Mutagenesisi | 346 | E → Q: The catalytic efficiency decreases by about two orders of magnitude, however the binding affinity is unchanged. 2 Publications | 1 | |
Mutagenesisi | 347 | S → A: Does not completely abolish halogenase activity. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000422330 | 1 – 538 | Flavin-dependent tryptophan halogenase PrnAAdd BLAST | 538 |
Proteomic databases
PRIDEi | P95480 |
Interactioni
Subunit structurei
Homodimer.
2 PublicationsStructurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
SMRi | P95480 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | P95480 |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 348 – 349 | Chloride binding | 2 | |
Regioni | 443 – 444 | L-tryptophan binding | 2 |
Sequence similaritiesi
Belongs to the flavin-dependent halogenase family. Bacterial tryptophan halogenase subfamily.Curated
Family and domain databases
Gene3Di | 3.50.50.60, 1 hit |
InterProi | View protein in InterPro IPR036188, FAD/NAD-bd_sf IPR006905, Flavin_halogenase IPR033856, Trp_halogen |
Pfami | View protein in Pfam PF04820, Trp_halogenase, 1 hit |
PIRSFi | PIRSF011396, Trp_halogenase, 1 hit |
SUPFAMi | SSF51905, SSF51905, 1 hit |
i Sequence
Sequence statusi: Complete.
P95480-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MNKPIKNIVI VGGGTAGWMA ASYLVRALQQ QANITLIESA AIPRIGVGEA
60 70 80 90 100
TIPSLQKVFF DFLGIPEREW MPQVNGAFKA AIKFVNWRKS PDPSRDDHFY
110 120 130 140 150
HLFGNVPNCD GVPLTHYWLR KREQGFQQPM EYACYPQPGA LDGKLAPCLS
160 170 180 190 200
DGTRQMSHAW HFDAHLVADF LKRWAVERGV NRVVDEVVDV RLNNRGYISN
210 220 230 240 250
LLTKEGRTLE ADLFIDCSGM RGLLINQALK EPFIDMSDYL LCDSAVASAV
260 270 280 290 300
PNDDARDGVE PYTSSIAMNS GWTWKIPMLG RFGSGYVFSS HFTSRDQATA
310 320 330 340 350
DFLKLWGLSD NQPLNQIKFR VGRNKRAWVN NCVSIGLSSC FLEPLESTGI
360 370 380 390 400
YFIYAALYQL VKHFPDTSFD PRLSDAFNAE IVHMFDDCRD FVQAHYFTTS
410 420 430 440 450
RDDTPFWLAN RHDLRLSDAI KEKVQRYKAG LPLTTTSFDD STYYETFDYE
460 470 480 490 500
FKNFWLNGNY YCIFAGLGML PDRSLPLLQH RPESIEKAEA MFASIRREAE
510 520 530
RLRTSLPTNY DYLRSLRDGD AGLSRGQRGP KLAAQESL
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U74493 Genomic DNA Translation: AAB97504.1 |
Genome annotation databases
KEGGi | ag:AAB97504 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U74493 Genomic DNA Translation: AAB97504.1 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
2APG | X-ray | 1.90 | A | 1-538 | [»] | |
2AQJ | X-ray | 1.80 | A | 1-538 | [»] | |
2AR8 | X-ray | 2.20 | A | 1-538 | [»] | |
2ARD | X-ray | 2.60 | A | 1-538 | [»] | |
2JKC | X-ray | 2.30 | A | 1-538 | [»] | |
4Z43 | X-ray | 2.29 | A | 1-538 | [»] | |
4Z44 | X-ray | 2.20 | A | 1-538 | [»] | |
SMRi | P95480 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Proteomic databases
PRIDEi | P95480 |
Genome annotation databases
KEGGi | ag:AAB97504 |
Enzyme and pathway databases
BioCyci | MetaCyc:MONOMER-16710 |
BRENDAi | 1.14.14.7, 5121 |
SABIO-RKi | P95480 |
Miscellaneous databases
EvolutionaryTracei | P95480 |
Family and domain databases
Gene3Di | 3.50.50.60, 1 hit |
InterProi | View protein in InterPro IPR036188, FAD/NAD-bd_sf IPR006905, Flavin_halogenase IPR033856, Trp_halogen |
Pfami | View protein in Pfam PF04820, Trp_halogenase, 1 hit |
PIRSFi | PIRSF011396, Trp_halogenase, 1 hit |
SUPFAMi | SSF51905, SSF51905, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | PRNA_PSEFL | |
Accessioni | P95480Primary (citable) accession number: P95480 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | May 29, 2013 |
Last sequence update: | May 1, 1997 | |
Last modified: | December 2, 2020 | |
This is version 71 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structureDocuments
- 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