1HP8

SOLUTION STRUCTURE OF HUMAN P8-MTCP1, A CYSTEINE-RICH PROTEIN ENCODED BY THE MTCP1 ONCOGENE,REVEALS A NEW ALPHA-HELICAL ASSEMBLY MOTIF, NMR, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Solution structure of human p8MTCP1, a cysteine-rich protein encoded by the MTCP1 oncogene, reveals a new alpha-helical assembly motif.

Barthe, P.Yang, Y.S.Chiche, L.Hoh, F.Strub, M.P.Guignard, L.Soulier, J.Stern, M.H.van Tilbeurgh, H.Lhoste, J.M.Roumestand, C.

(1997) J Mol Biol 274: 801-815

  • DOI: 10.1006/jmbi.1997.1438
  • Primary Citation of Related Structures:  
    2HP8, 1HP8

  • PubMed Abstract: 
  • MTCP1 (for Mature-T-Cell Proliferation) is the first gene unequivocally identified in the group of uncommon leukemias with a mature phenotype. The three-dimensional solution structure of the human p8(MTCP1) protein encoded by the MTCP1 oncogene was determined by homonuclear proton two-dimensional NMR methods at 600 MHz ...

    MTCP1 (for Mature-T-Cell Proliferation) is the first gene unequivocally identified in the group of uncommon leukemias with a mature phenotype. The three-dimensional solution structure of the human p8(MTCP1) protein encoded by the MTCP1 oncogene was determined by homonuclear proton two-dimensional NMR methods at 600 MHz. After sequence specific assignments, a total of 931 distance restraints and 57 dihedral restraints were collected. The location of the three previously unassigned disulfide bridges was determined from preliminary DIANA structures, using a statistical analysis of intercystinyl distances. The solution structure of p8(MTCP1) is presented as a set of 30 DIANA structures, further refined by restrained molecular dynamics using a simulated annealing protocol with the AMBER force field. The r.m.s.d. values with respect to the mean structure for the backbone and all heavy atoms for a family of 30 structures are 0.73(+/-0.28) and 1.17(+/-0.23) A, when the structured core of the protein (residues 5 to 63) is considered. The solution structure of p8(MTCP1) reveals an original scaffold consisting of three alpha helices, associated with a new cysteine motif. Two of the helices are covalently paired by two disulfide bridges, forming an alpha-hairpin which resembles an antiparallel coiled-coil. The third helix is oriented roughly parallel to the plane defined by the alpha-antiparallel motif and its axis forms an angle of approximately 60 degrees with respect to the main axis of this motif.


    Related Citations: 
    • The Mtcp-1/C6.1B Gene Encodes for a Cytoplasmic 8 Kd Protein Overexpressed in T Cell Leukemia Bearing a T(X;14) Translocation
      Soulier, J., Madani, A., Cacheux, V., Rosenzwajg, M., Sigaux, F., Stern, M.H.
      (1994) Oncogene 9: 3565
    • Mtcp-1: A Novel Gene on the Human Chromosome Xq28 Translocated to the T Cell Receptor Alpha/Delta Locus in Mature T Cell Proliferations
      Stern, M.H., Soulier, J., Rosenzwajg, M., Nakahara, K., Canki-Klain, N., Aurias, A., Sigaux, F., Kirsch, I.R.
      (1993) Oncogene 8: 2475

    Organizational Affiliation

    CNRS-UMR 9955, INSERM-U414, Faculté de Pharmacie, Université de Montpellier I, 15 Avenue Charles Flahault, Montpellier Cedex, 34060, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cx9C motif-containing protein 4A79Homo sapiensMutation(s): 0 
Gene Names: CMC4C6.1BMTCP1MTCP1NB
Find proteins for P56277 (Homo sapiens)
Explore P56277 
Go to UniProtKB:  P56277
NIH Common Fund Data Resources
PHAROS:  P56277
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 
  • Selection Criteria: structures with the least restraint violations 
  • OLDERADO: 1HP8 Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-03-04
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 2.0: 2019-08-21
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Other, Polymer sequence, Refinement description, Source and taxonomy, Structure summary