2MF9 | pdb_00002mf9

Solution structure of the N-terminal domain of human FKBP38 (FKBP38NTD)

• PDB DOI: https://doi.org/10.2210/pdb2MF9/pdb
• Entry: 2MF9 supersedes: 2JWX
• BMRB: 6923

• Classification: APOPTOSIS, ISOMERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-10-08 Released: 2013-11-06 
• Deposition Author(s): Kang, C., Ye, H., Simon, B., Sattler, M., Yoon, H.S.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Functional role of the flexible N-terminal extension of FKBP38 in catalysis.

Kang, C., Ye, H., Chia, J., Choi, B.H., Dhe-Paganon, S., Simon, B., Schutz, U., Sattler, M., Yoon, H.S.

(2013) Sci Rep 3: 2985-2985

• PubMed: 24145868 
• DOI: https://doi.org/10.1038/srep02985
• Primary Citation Related Structures: 
  2MF9


• PubMed Abstract: 
  

  FKBP38 regulates apoptosis through unique interactions with multiple regulators including Bcl-2. Interestingly, the peptidylprolyl isomerase activity of FKBP38 is only detectable when it binds to calcium-saturated calmodulin (CaM/Ca(2+)). This, in turn, permits the formation of a complex with Bcl-2. FKBP38 thereby provides an important link between isomerase activity and apoptotic pathways. Here, we show that the N-terminal extension (residues 1-32) preceding the catalytic domain of FKBP38 has an autoinhibitory activity. The core isomerase activity of FKBP38 is inhibited by transient interactions involving the flexible N-terminal extension that precedes the catalytic domain. Notably, CaM/Ca(2+) binds to this N-terminal extension and thereby releases the autoinhibitory contacts between the N-terminal extension and the catalytic domain, thus potentiating the isomerase activity of FKBP38. Our data demonstrate how CaM/Ca(2+) modulates the catalytic activity of FKBP38.

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Organizational Affiliation: 
• 1] School of Biological Science, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore [2] [3].

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 16.91 kDa 
• Atom Count: 1,186 
• Modeled Residue Count: 157 
• Deposited Residue Count: 157 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptidyl-prolyl cis-trans isomerase FKBP8	A	157	Homo sapiens	Mutation(s): 0  Gene Names: FKBP8, FKBP38 EC: 5.2.1.8
UniProt & NIH Common Fund Data Resources
Find proteins for Q14318 (Homo sapiens) Explore Q14318  Go to UniProtKB:  Q14318
PHAROS:  Q14318 GTEx:  ENSG00000105701

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-11-06 
Deposition Author(s): Kang, C., Ye, H., Simon, B., Sattler, M., Yoon, H.S.
• This entry supersedes: 2JWX

Revision History  

• Version 1.0: 2013-11-06
  Type: Initial release
  
• Version 1.1: 2024-05-01
  Changes: Data collection, Database references