1hp8: Difference between revisions
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==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== | |||
<StructureSection load='1hp8' size='340' side='right'caption='[[1hp8]]' scene=''> | |||
| | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1hp8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HP8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HP8 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 1 model</td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1hp8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hp8 OCA], [https://pdbe.org/1hp8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hp8 RCSB], [https://www.ebi.ac.uk/pdbsum/1hp8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hp8 ProSAT]</span></td></tr> | |||
</table> | |||
== Disease == | |||
[https://www.uniprot.org/uniprot/CMC4_HUMAN CMC4_HUMAN] Note=Overexpressed in T-cell leukemia bearing a t(X;14) translocation. | |||
== Function == | |||
[https://www.uniprot.org/uniprot/CMC4_HUMAN CMC4_HUMAN] | |||
== | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | |||
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. | 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. | ||
Solution structure of human p8MTCP1, a cysteine-rich protein encoded by the MTCP1 oncogene, reveals a new alpha-helical assembly motif.,Barthe P, Yang YS, Chiche L, Hoh F, Strub MP, Guignard L, Soulier J, Stern MH, van Tilbeurgh H, Lhoste JM, Roumestand C J Mol Biol. 1997 Dec 19;274(5):801-15. PMID:9405159<ref>PMID:9405159</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1hp8" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Barthe | [[Category: Barthe P]] | ||
[[Category: Chiche | [[Category: Chiche L]] | ||
[[Category: Roumestand | [[Category: Roumestand C]] | ||
[[Category: Strub | [[Category: Strub MP]] | ||