+ Translate

Raman and normal mode studies of the polypeptide chain conformations in crystalline magnesium and calcium poly l glutamates

, : Raman and normal mode studies of the polypeptide chain conformations in crystalline magnesium and calcium poly l glutamates. Spectrochimica Acta Part A Molecular Spectroscopy 41(1-2): 205-208

An analysis of the Raman spectra of dry crystalline magnesium and calcium poly(L-glutamate)s, based on a normal mode calculation of .alpha.-helical poly(L-glutamate), shows that the polypeptide chains in both salts have an .alpha.-helix conformation. In the wet crystalline state, chain conformation is also present for the calcium salt.

(PDF 0-2 workdays service)

Accession: 006255764

Submit PDF Full Text: Here

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Related references

Krimm S., 1988: Polypeptide chain conformation by normal mode analysis of ir and raman spectra. Biophysical Journal 53(2 PART 2): 244A

Sengupta, P.K.; Krimm, S., 1987: Raman and normal-mode studies of the extended-helix conformation in polypeptide chains. Biopolymers 26 Suppl: S99-107

Squire, J.M.; Elliott, A., 1972: Side-chain conformations in dry and liquid-crystalline forms of racemic poly- -benzyl glutamate. Journal of Molecular Biology 65(2): 291-321

Bassett, R.; Weir, D.G.; Scott, J.M., 1976: The identification of hexa glutamates hepta glutamates and octo glutamates as the poly glutamyl forms of folate found throughout the growth cycle of yeast. Four p-aminobenzoate (p-AB)-requiring strains of Saccharomyces cerevisiae were studied. All strains grew vigorously on a completely defined medium only when supplemented with 0.025% yeast extract. Strains transferred to fresh media with 14C p-AB r...

Squire J.M.; Elliott A., 1972: Side chain conformations in dry and liquid crystalline forms of racemic poly gamma benzyl glutamate. Journal of Molecular Biology 65(2): 291-321

Sreerama, N.; Woody, R.W., 1999: Molecular dynamics simulations of polypeptide conformations in water: A comparison of alpha, beta, and poly(pro)II conformations. A significant fraction of the so-called "random coil" residues in globular proteins exists in the left-handed poly(Pro)II conformation. In order to compare the behavior of this secondary structure with that of the other regular secondary...

Fodor, S.P.; Starr, P.A.; Spiro, T.G., 1985: Raman spectroscopic elucidation of DNA backbone conformations for poly(dG-dT).poly(dA-dC) and poly(dA-dT).poly(dA-dT) in CsF solution. Biopolymers 24(8): 1493-1500

Ramakrishnan, C.; Ramachandran, G.N., 1965: Stereochemical criteria for polypeptide and protein chain conformations. II. Allowed conformations for a pair of peptide units. The conformation of a polypeptide or protein chain may be specified by stating the orientations of the two linked peptide residues at each alpha carbon atom in the chain, namely the two dihedral angles varphi, varphi' about the single bonds N...

Katakai R., 1979: Critical chain length for the formation of alpha poly peptide and beta poly peptide conformations in the solid state syntheses and conformations of oligo peptides with alternate l alanyl and l leucyl residues. A series of oligopeptides with alternate L-alanyl and L-leucyl residues Nps(o-nitrophenylsulphenyl)-(L-Leu-L-Ala)n-OEt and Nps-L-Ala-(L-Leu-L-Ala)m-OEt (n = 1-6 and 8, and m = 1-5) were prepared from stepwise synthesis with Nps N-carboxy-.alpha.-a...

Eto, I.; Krumdieck, C.L., 1982: Determination of 3 different pools of reduced 1 carbon substituted folates 3. reversed phase high performance liquid chromatography of the azo dye derivatives of p aminobenzoyl poly gamma glutamates and its application to the study of unlabeled endogenous pteroyl poly glutamates of rat liver. A new reversed-phase high-performance liquid chromatographic (HPLC) method is described for the separation and quantitation of picomole amounts of the azo dye derivatives of p-aminobenzoylpoly-.gamma.-glutamates. In conjunction with previously des...