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Hydrolase PDB id
1gpf
Jmol
Contents
Protein chains
497 a.a. *
Ligands
SO4 ×3
Waters ×614
* Residue conservation analysis
PDB id:
1gpf
Name: Hydrolase
Title: Chitinase b from serratia marcescens in complex with inhibitor psammaplin
Structure: Chitinase b. Chain: a, b. Engineered: yes
Source: Serratia marcescens. Organism_taxid: 615. Expressed in: escherichia coli. Expression_system_taxid: 562
Biol. unit: Dimer (from PDB file)
Resolution:
1.85Å     R-factor:   0.200     R-free:   0.245
Authors: D.Komander,D.M.Van Aalten
Key ref: J.N.Tabudravu et al. (2002). Psammaplin A, a chitinase inhibitor isolated from the Fijian marine sponge Aplysinella rhax. Bioorg Med Chem, 10, 1123-1128. PubMed id: 11836123 DOI: 10.1016/S0968-0896(01)00372-8
Date:
03-Nov-01     Release date:   31-Oct-02    
PROCHECK
Go to PROCHECK summary
 Headers
 References

Protein chains
Pfam   ArchSchema ?
Q54276  (Q54276_SERMA) -  Chitinase
Seq:
Struc:
499 a.a.
497 a.a.
Key:    PfamA domain  Secondary structure  CATH domain

 Gene Ontology (GO) functional annotation 
  GO annot!
  Cellular component     extracellular region   1 term 
  Biological process     metabolic process   3 terms 
  Biochemical function     catalytic activity     7 terms  

 

 
DOI no: 10.1016/S0968-0896(01)00372-8 Bioorg Med Chem 10:1123-1128 (2002)
PubMed id: 11836123  
 
 
Psammaplin A, a chitinase inhibitor isolated from the Fijian marine sponge Aplysinella rhax.
J.N.Tabudravu, V.G.Eijsink, G.W.Gooday, M.Jaspars, D.Komander, M.Legg, B.Synstad, D.M.van Aalten.
 
  ABSTRACT  
 
Several brominated tyrosine derived compounds, psammaplins A (1), K (2) and L (3) as well as bisaprasin (4) were isolated from the Fijian marine sponge Aplysinella rhax during a bioassay guided isolation protocol. Their structures were determined using NMR and MS techniques. Psammaplin A was found to moderately inhibit chitinase B from Serratia marcescens, the mode of inhibition being non-competitive. Crystallographic studies suggest that a disordered psammaplin A molecule is bound near the active site. Interestingly, psammaplin A was found to be a potent antifungal agent.
 

Literature references that cite this PDB file's key reference

  PubMed id Reference
19041124 E.Berry, J.L.Hardt, J.Clardy, J.R.Lurain, and J.J.Kim (2009).
Induction of apoptosis in endometrial cancer cells by psammaplysene A involves FOXO1.
  Gynecol Oncol, 112, 331-336.  
19567270 E.Brunner, H.Ehrlich, P.Schupp, R.Hedrich, S.Hunoldt, M.Kammer, S.Machill, S.Paasch, V.V.Bazhenov, D.V.Kurek, T.Arnold, S.Brockmann, M.Ruhnow, and R.Born (2009).
Chitin-based scaffolds are an integral part of the skeleton of the marine demosponge Ianthella basta.
  J Struct Biol, 168, 539-547.  
16216010 B.Bauvois, and D.Dauzonne (2006).
Aminopeptidase-N/CD13 (EC 3.4.11.2) inhibitors: chemistry, biological evaluations, and therapeutic prospects.
  Med Res Rev, 26, 88.  
16953493 J.Saguez, F.Dubois, C.Vincent, J.C.Laberche, B.S.Sangwan-Norreel, and P.Giordanengo (2006).
Differential aphicidal effects of chitinase inhibitors on the polyphagous homopteran Myzus persicae (Sulzer).
  Pest Manag Sci, 62, 1150-1154.  
16249876 N.Dahiya, R.Tewari, and G.S.Hoondal (2006).
Biotechnological aspects of chitinolytic enzymes: a review.
  Appl Microbiol Biotechnol, 71, 773-782.  
16193156 O.A.Andersen, M.J.Dixon, I.M.Eggleston, and D.M.van Aalten (2005).
Natural product family 18 chitinase inhibitors.
  Nat Prod Rep, 22, 563-579.  
14597613 G.Vaaje-Kolstad, A.Vasella, M.G.Peter, C.Netter, D.R.Houston, B.Westereng, B.Synstad, V.G.Eijsink, and D.M.van Aalten (2004).
Interactions of a family 18 chitinase with the designed inhibitor HM508 and its degradation product, chitobiono-delta-lactone.
  J Biol Chem, 279, 3612-3619.
PDB codes: 1ur8 1ur9
15456519 Y.Jiang, E.Y.Ahn, S.H.Ryu, D.K.Kim, J.S.Park, H.J.Yoon, S.You, B.J.Lee, D.S.Lee, and J.H.Jung (2004).
Cytotoxicity of psammaplin A from a two-sponge association may correlate with the inhibition of DNA replication.
  BMC Cancer, 4, 70.  
12093900 D.R.Houston, K.Shiomi, N.Arai, S.Omura, M.G.Peter, A.Turberg, B.Synstad, V.G.Eijsink, and D.M.van Aalten (2002).
High-resolution structures of a chitinase complexed with natural product cyclopentapeptide inhibitors: mimicry of carbohydrate substrate.
  Proc Natl Acad Sci U S A, 99, 9127-9132.
PDB codes: 1h0g 1h0i
The most recent references are shown first. Citation data come partly from CiteXplore and partly from an automated harvesting procedure. Note that this is likely to be only a partial list as not all journals are covered by either method. However, we are continually building up the citation data so more and more references will be included with time. Where a reference describes a PDB structure, the PDB codes are shown on the right.