NMR paper 13C-NMR investigation of protein synthesis during apoptosis in human leukemic cell li

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[NMR paper] 13C-NMR investigation of protein synthesis during apoptosis in human leukemic cell li

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NMR processing:

MDD

NMR assignment:

Backbone:

Side-chains:

NOEs:

Structure from NMR restraints:

Ab initio:

Fragment-based:

Rosetta-NMR (Robetta)

Template-based:

GeNMR

I-TASSER

Refinement:

Amber

Structure from chemical shifts:

Fragment-based:

Homology-based:

Torsion angles from chemical shifts:

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TALOS

Promega- Proline

Secondary structure from chemical shifts:

CSI (via RCI server)

TALOS

MICS caps, β-turns

d2D

PECAN

Flexibility from chemical shifts:

RCI

Interactions from chemical shifts:

HADDOCK

Chemical shifts re-referencing:

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NOEs, other restraints:

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SAVES2 or SAVES4

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Proshift

PPM

CheShift-2- Cα

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Shifty

Camcoil

Poulsen_rc_CS

Disordered proteins:

MAXOCC

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NMR sample preparation:

Protein disorder:

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Protein solubility:

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11-18-2010, 08:31 PM

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13C-NMR investigation of protein synthesis during apoptosis in human leukemic cell li

13C-NMR investigation of protein synthesis during apoptosis in human leukemic cell lines.

Related Articles 13C-NMR investigation of protein synthesis during apoptosis in human leukemic cell lines.

J Cell Physiol. 1999 Oct;181(1):147-52

Authors: Scott CE, Adebodun F

In order to evaluate the role of protein synthesis in apoptosis, (13)C-NMR has been used to study the levels of protein synthesis in three different human leukemic cell lines in the presence and absence of dexamethasone-induced apoptosis. Measurements were done on one dexamethasone-sensitive (CEM-C7-14) and two different dexamethasone-resistant variants (CEM-4R4 and CEM-ICR27-4). The incorporation of (13)C-labeled amino acids into cellular proteins, which reflects the level of new protein synthesis, was monitored by (13)C-NMR spectroscopy. In the absence of dexamethasone, the level of protein synthesis was found to be significantly different among the three cell lines. Dexamethasone caused a significant reduction ( congruent with 60-87%) in the level of protein synthesis in dexamethasone-sensitive CEM-C7-14 cells, while having no significant effect on protein synthesis in dexamethasone-resistant CEM-4R4 cells. Dexamethasone treatment caused a significant enhancement of the level of protein synthesis in the CEM-ICR27-4 cells. Synthesis of proteins was found to occur during apoptosis, albeit at a low level, suggesting a role for the synthesis of specific proteins in the mechanism of apoptosis.

PMID: 10457362 [PubMed - indexed for MEDLINE]

Source: PubMed

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