1I16 | pdb_00001i16

STRUCTURE OF INTERLEUKIN 16: IMPLICATIONS FOR FUNCTION, NMR, 20 STRUCTURES

• PDB DOI: https://doi.org/10.2210/pdb1I16/pdb

• Classification: CYTOKINE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 1998-05-20 Released: 1999-05-25 
• Deposition Author(s): Muehlhahn, P., Zweckstetter, M., Georgescu, J., Ciosto, C., Renner, C., Lanzendoerfer, M., Lang, K., Ambrosius, D., Baier, M., Kurth, R., Holak, T.A.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATION, LEAST TOTAL ENERGY 

Literature

Structure of interleukin 16 resembles a PDZ domain with an occluded peptide binding site.

Muhlhahn, P., Zweckstetter, M., Georgescu, J., Ciosto, C., Renner, C., Lanzendorfer, M., Lang, K., Ambrosius, D., Baier, M., Kurth, R., Holak, T.A.

(1998) Nat Struct Biol 5: 682-686

• PubMed: 9699630 
• DOI: https://doi.org/10.1038/1376
• Primary Citation Related Structures: 
  1I16


• PubMed Abstract: 
  

  The structure of a folded core of IL-16 is similar to that of intracellular protein modules called PDZ domains. IL-16 is thus the first extracellular protein found to have a PDZ-like fold. However, it does not exhibit normal peptide binding properties of PDZ domains. This is due to alterations of the structure at the 'PDZ-like binding site' of IL-16 (the GLGF cleft): the GLGF cleft of IL-16 is much smaller than those of PDZ-domains and is additionally blocked with a tryptophan side chain at its center. Our experiments indicate also that IL-16 nonspecifically aggregates in solution; but formation of a homo-tetrameric protein is not required, in contrast to previous suggestions, for its chemo-attractant activity.

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Organizational Affiliation: 
• Max Planck Institute for Biochemistry, Martinsried, F.R.G., Germany.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 13.39 kDa 
• Atom Count: 936 
• Modeled Residue Count: 130 
• Deposited Residue Count: 130 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
INTERLEUKIN 16	A	130	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for Q14005 (Homo sapiens) Explore Q14005  Go to UniProtKB:  Q14005
PHAROS:  Q14005 GTEx:  ENSG00000172349

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: LEAST RESTRAINT VIOLATION, LEAST TOTAL ENERGY 

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-05-25 
Deposition Author(s): Muehlhahn, P., Zweckstetter, M., Georgescu, J., Ciosto, C., Renner, C., Lanzendoerfer, M., Lang, K., Ambrosius, D., Baier, M., Kurth, R., Holak, T.A.

Revision History  

• Version 1.0: 1999-05-25
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Database references, Derived calculations, Other
• Version 1.4: 2024-05-22
  Changes: Data collection