(Below N is a link to NCBI taxonomic web page and E link to ESTHER at designed phylum.) > cellular organisms: NE > Eukaryota: NE > Opisthokonta: NE > Fungi: NE > Dikarya: NE > Ascomycota: NE > saccharomyceta: NE > Pezizomycotina: NE > leotiomyceta: NE > Eurotiomycetes: NE > Eurotiomycetidae: NE > Eurotiales: NE > Aspergillaceae: NE > Aspergillus: NE > Aspergillus nidulans: NE
Warning: This entry is a compilation of different species or line or strain with more than 90% amino acide identity. You can retrieve all strain data
(Below N is a link to NCBI taxonomic web page and E link to ESTHER at designed phylum.) Aspergillus nidulans FGSC A4: N, E.
Aspergillus nidulans: N, E.
Molecular evidence
Database
No mutation 1 structure: 6GUN: Emericella nidulans (Aspergillus nidulans) siderophore-degrading esterase AnEstB No kinetic
LegendThis sequence has been compared to family alignement (MSA) red => minority aminoacid blue => majority aminoacid color intensity => conservation rate title => sequence position(MSA position)aminoacid rate Catalytic site Catalytic site in the MSA GSTQIDKPAVVSLPSSEQFYLNNSRGERYLIQVSWPLHWKDHKPDTDRND VPLIYIVDGNALFLTATEALWRRSADSHYCGGGIVVAIGYPLEGTGKVYH RVRRGFDLTVPTPDSPVEGHGGADILLDFIAETVRPAVRERFPDVSVSRE ALYGHSYGGLFALHALFTRPSMFDAYIASSPSIWWNGRCILNEAKAFTRK IKENGAYTNGEKKLPSLMMYLGGLEQDPRRWNDEPDESWEGRKRDAEAFN MKVNLLELMGLIRGCTRLHAVSFSEYAGEDHGTVMACSLGRGFSTFMEDW PVPREESV
Reference
Title: Iron Scavenging in Aspergillus Species: Structural and Biochemical Insights into Fungal Siderophore Esterases Ecker F, Haas H, Groll M, Huber EM Ref: Angew Chem Int Ed Engl, 57:14624, 2018 : PubMed
Fungi utilize high-affinity chelators termed siderophores with chemically diverse structures to scavenge the essential nutrient iron from their surroundings. Since they are among the strongest known Fe(3+) binding agents, intracellular release of the heavy metal atom is facilitated by the activity of specific hydrolases. In this work, we report the characterization and X-ray crystal structures of four siderophore esterases: AfEstB and AfSidJ from Aspergillus fumigatus, as well as AnEstB and AnEstA from Aspergillus nidulans. Even though they all display the conserved alpha/beta-hydrolase fold, we found significant structural and enzymatic discrepancies in their adaption to both related and chemically diverse substrates. A structure of AfEstB in complex with its substrate triacetylfusarinine C gives insight into the active enzyme and shows tetrahedral coordination between the catalytic serine and the scissile ester bond.