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- Medical English LInking keywords finder for the PubMed Zipped Archive (ELIZA) -

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288503 occurrences (No.86 in the rank) during 5 years in the PubMed. [cache]
397) Recently determined crystal structure of truncated form of α-subunit of cyanobacterial phycoerythrin (αC-PE) from Phormidium tenue provides a new insight into the structure-function relationship of αC-PE.
--- ABSTRACT ---
PMID:24279700 DOI:10.1080/07391102.2013.855144
2015 Journal of biomolecular structure & dynamics
* Role of N-terminal residues on folding and stability of C-phycoerythrin: simulation and urea-induced denaturation studies.
- The conformational state of biliproteins can be determined by optical properties of the covalently linked chromophores. Recently determined crystal structure of truncated form of α-subunit of cyanobacterial phycoerythrin (αC-PE) from Phormidium tenue provides a new insight into the structure-function relationship of αC-PE. To compare their stabilities, we have measured urea-induced denaturation transitions of the full length αC-PE (FL-αC-PE) and truncated αC-PE (Tr-αC-PE) followed by observing changes in absorbance at 565 nm, fluorescence at 350 and 573 nm, and circular dichroism at 222 nm as a function of [urea], the molar concentration of urea. The transition curve of each protein was analyzed for ΔG(D)(0), the value of Gibbs free energy change on denaturation (ΔG(D)) in the absence of urea; m, the slope (=∂∆G(D)/∂[urea]), and C(m), the midpoint of the denaturation curve, i.e. [urea] at which ΔG(D) = 0. A difference of about 10% in ΔG(D)(0) observed between FL-αC-PE and Tr-αC-PE, suggests that the two proteins are almost equally stable, and the natural deletion of 31 residues from the N-terminal side of the full length protein does not alter its stability. Furthermore, normalization of probes shows that the urea-induced denaturation of both the proteins is a two-state process. Folding of both structural variants (Tr-αC-PE and FL-αC-PE) of P. tenue were also studied using molecular dynamics simulations at 300 K. The results show clearly that the stability of the proteins is evenly distributed over the whole structure indicating no significant role of N-terminal residues in the stability of both proteins.
[frequency of next (right) word to function]
(1)94 of (10)7 with (19)3 for (28)2 leading
(2)74 *null* (11)5 during (20)3 has (29)2 mutations
(3)53 and (12)5 tests (21)3 over (30)2 on
(4)47 in (13)5 that (22)3 relationships (31)2 or
(5)17 was (14)4 among (23)2 at (32)2 physical
(6)12 as (15)4 to (24)2 but (33)2 relationship
(7)12 is (16)4 which (25)2 can (34)2 remains
(8)7 Index (17)3 after (26)2 could (35)2 using
(9)7 were (18)3 by (27)2 grades

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--- WordNet output for function --- =>1.機能, 関数, 役割, 働き, 2.機能する, 作用する, 働く, 役目を果たす, 3.社交的会合, パーティー, 儀式 Overview of noun function The noun function has 7 senses (first 3 from tagged texts) 1. (43) function, mathematical function, single-valued function, map, mapping -- ((mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)) 2. (24) function, purpose, role, use -- (what something is used for; "the function of an auger is to bore holes"; "ballet is beautiful but what use is it?") 3. (7) function, office, part, role -- (the actions and activities assigned to or required or expected of a person or group; "the function of a teacher"; "the government must do its part"; "play its role") 4. function -- (a relation such that one thing is dependent on another; "height is a function of age"; "price is a function of supply and demand") 5. function -- (a formal or official social gathering or ceremony; "it was a black-tie function") 6. affair, occasion, social occasion, function, social function -- (a vaguely specified social event; "the party was quite an affair"; "an occasion arranged to honor the president"; "a seemingly endless round of social functions") 7. routine, subroutine, subprogram, procedure, function -- (a set sequence of steps, part of larger computer program) Overview of verb function The verb function has 3 senses (first 3 from tagged texts) 1. (9) function, work, operate, go, run -- (perform as expected when applied; "The washing machine won't go unless it's plugged in"; "Does this old car still run well?"; "This old radio doesn't work anymore") 2. (3) serve, function -- (serve a purpose, role, or function; "The tree stump serves as a table"; "The female students served as a control group"; "This table would serve very well"; "His freedom served him well"; "The table functions as a desk") 3. (1) officiate, function -- (perform duties attached to a particular office or place or function; "His wife officiated as his private secretary") --- WordNet end ---