Báo cáo khoa học: Structural characterization of photosystem II complex from red alga Porphyridium cruentum retaining extrinsic subunits of the oxygen-evolving complex docx

... Structural characterization of photosystem II complex from red alga Porphyridium cruentum retaining extrinsic subunits of the oxygen-evolving complex Ladislav Bumba 1,2 , ... on the presence of other extrinsic proteins [44], whereas effective binding of red algal cyt c 550 to the red algal PSII requires the presence of all of the other...

Ngày tải lên: 16/03/2014, 18:20

... even in the absence of Ca 2+ . Studies on the disruption of the holoenzyme produced two functional complexes, the acd complex and the cd complex dem- onstrating that CaM interacts with the kinase ... regulated by the binding of extrinsic calmodulin (CaM). The c subunit is the catalytic subunit and the d subunit is an intrinsic mole- cule of CaM that binds to...

Ngày tải lên: 19/02/2014, 17:20

... Hep Hep b | Hex 2 -Hex-Hep-AnKdo-ol | Hep | Hep a Major isomer of the Hex3 glycoform (estimated from the intensity of the fragments in MS 2 experiments). b Minor isomer of the Hex3 glycoform (estimated from the intensity of the fragments in MS 2 experiments). Fig. ... PEtnresiduewasdemonstratedtobe linked to O-3 of HepIII as the 31 P resonance at d )0.50 correlated...

Ngày tải lên: 08/03/2014, 02:21

... National University of Singapore, Singapore The recent discovery of the Nogo family of myelin inhibitors and the Nogo-66 receptor opens up a very promising avenue for the development of therapeutic agents ... observation, together with results from secondary structure predictions, offered the rationale to study the structure of Nogo-40 after its intrinsic helix-forming...

Ngày tải lên: 16/03/2014, 16:20

... being composed of a L -FucN component originating from the O-PS residue A and the D -FucN from the reduced residue B. The isolation of optically pure 2-amino-2,6-dideoxy- D - glucose (D-QuiN), the major reduction ... of note that the structure of the LPS O-antigen of F. columnare differs structurally from the LPS O-antigen of the fish pathogen Flavobacterium...

Ngày tải lên: 17/03/2014, 10:20

... Alanine-scanning of the 50’s loop in the Clostridium beijerinckii flavodoxin: evaluation of additivity and the importance of interac- tions provided by the main chain in the modulation of the oxidation-reduction ... highly dependent on the approach and colinear orientation of the N5 of the flavin, the hydride to be transferred, and C4 of the nicotinamide. In...

Ngày tải lên: 18/02/2014, 11:20

... independent of the binding of the minifiber to the penton base, because it is attached at the C-terminal extremity of the foldon domain and is remote from the penton base-binding region. The system ... fiber loss, the low micromolar affinity of the penton base for fiber protein minimizes reattachment of the fiber to the viral particle. The altered conformation...

Ngày tải lên: 19/02/2014, 06:20

... products, the cleavage site protected by the presence of ubiquitin was Ser341, located in the ‘fingers’ region of the catalytic core domain involved in the recognition of the ubiquitin core. These ... Based on these predictions, we stud- ied the localization of deletion mutants of the first 20, 50 and 70 amino acids of USP7. Surprisingly, these variants were found pr...

Ngày tải lên: 07/03/2014, 05:20

... In these equations, q is the solvent density,  t is the partial specific volume of the Iba protein, x is the angular velocity, R is the gas constant and T the absolute temperature. A r is the ... with the consensus sequence, the crucial glutamate in the last position of the motif (the ‘)Z’ position) [28] is substituted mostly by serines or glycines. The coordinati...

Ngày tải lên: 16/03/2014, 06:20

... respectively, of that of HPRT. This low activity could be explained by the fact that PRTFDC1 has a Gly in the position of the proposed catalytic Asp of HPRT. In PRTFDC1, a water molecule at the position of ... strength [20]. In the present study, we report the structural and functional characterization of the human HPRT homolog PRTFDC1. To shed light on the pot...

Ngày tải lên: 15/02/2014, 01:20