2LD4

Solution structure of the N-terminal domain of human anamorsin


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 30 
  • Selection Criteria: target function 

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Literature

Anamorsin Is a [2Fe-2S] Cluster-Containing Substrate of the Mia40-Dependent Mitochondrial Protein Trapping Machinery.

Banci, L.Bertini, I.Ciofi-Baffoni, S.Boscaro, F.Chatzi, A.Mikolajczyk, M.Tokatlidis, K.Winkelmann, J.

(2011) Chem Biol 18: 794-804

  • DOI: 10.1016/j.chembiol.2011.03.015
  • Primary Citation of Related Structures:  
    2LD4

  • PubMed Abstract: 
  • Human anamorsin was implicated in cytosolic iron-sulfur (Fe/S) protein biogenesis. Here, the structural and metal-binding properties of anamorsin and its interaction with Mia40, a well-known oxidoreductase involved in protein trapping in the mitochondria ...

    Human anamorsin was implicated in cytosolic iron-sulfur (Fe/S) protein biogenesis. Here, the structural and metal-binding properties of anamorsin and its interaction with Mia40, a well-known oxidoreductase involved in protein trapping in the mitochondrial intermembrane space (IMS), were characterized. We show that (1), anamorsin contains two structurally independent domains connected by an unfolded linker; (2), the C-terminal domain binds a [2Fe-2S] cluster through a previously unknown cysteine binding motif in Fe/S proteins; (3), Mia40 specifically introduces two disulfide bonds in a twin CX(2)C motif of the C-terminal domain; (4), anamorsin and Mia40 interact through an intermolecular disulfide-bonded intermediate; and (5), anamorsin is imported into mitochondria. Hence, anamorsin is the first identified Fe/S protein imported into the IMS, raising the possibility that it plays a role in cytosolic Fe/S cluster biogenesis also once trapped in the IMS.


    Organizational Affiliation

    Magnetic Resonance Center CERM, University of Florence, Via L. Sacconi 6, 50019, Sesto Fiorentino, Florence, Italy. banci@cerm.unifi.it



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Anamorsin A176Homo sapiensMutation(s): 0 
Gene Names: CIAPIN1CUA001PRO0915
Find proteins for Q6FI81 (Homo sapiens)
Explore Q6FI81 
Go to UniProtKB:  Q6FI81
NIH Common Fund Data Resources
PHAROS:  Q6FI81
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 30 
  • Selection Criteria: target function 
  • OLDERADO: 2LD4 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-07-13
    Type: Initial release