PubAg

Main content area

You searched for: Subject "protein secondary structure" Remove constraint Subject: "protein secondary structure"
Start Over

Search

909  Search Results

« Previous | 1 - 20 of 909 |
Number of results to display per page

Search Results

1. Optical rotatory dispersion, circular dichroism, and infrared studies of wheat gluten proteins in various solvents

Author:
Cluskey, J.E.; Wu, Y.V.
Source:
Cereal chemistry 1971 v.48 no.3 pp. 203
ISSN:
0009-0352
Subject:
protein secondary structure,   etc   ; wheat gluten; glutenins; gliadin; infrared spectroscopy; optical properties; circular dichroism spectroscopy; solvents; organofluorine compounds; urea;     Show all 10 Subjects
Abstract:
... The influence of various solvents upon the conformation of gluten proteins. glutenin and gliadin, has been studied by optical rotatory dispersion (ORD), circular dichroism (CD), and IR absorption measurements. From ORD data an alpha-helix content of 38% has been calculated for gliadin in trifluoroethanol; 35% for glutenin. Conversely, little or no alpha-helix was found when the proteins were dispe ...
Handle:
10113/31237

2. Sorghum prolamins: their optical rotatory dispersion, circular dichroism, and infrared spectra

Author:
Wu, Y.V.; Cluskey, J.E.; Jones, R.W.
Source:
Journal of agricultural and food chemistry 1971 v.19 no.6 pp. 1139
ISSN:
0021-8561
Subject:
protein secondary structure,   etc   ; Sorghum bicolor; grain sorghum; prolamins; protein conformation; infrared spectroscopy; optical properties; circular dichroism spectroscopy; solvents;     Show all 9 Subjects
Abstract:
... The molecular conformation of sorghum prolamin was explored because of its high levels of nonpolar amino acids, its strong tendency to gel, and its poor solubility. Conformations of prolamin from 4 hybrids of grain sorghum were studied by optical rotatory dispersion (ORD), circular dichroism (CD), and IR spectra in several solvents. IR absorption spectrum of prolamin in 60% tert-butyl alcohol (ter ...
Handle:
10113/31073
DOI:
10.1021/jf60178a008

3. Analysis of periodic patterns in amino acid sequences: collagen

Author:
McLachlan, A.D.
Source:
Biopolymers 1977 v.16 no.6 pp. 1271-1297
ISSN:
0006-3525
Subject:
protein secondary structure,   etc   ; mathematics and statistics; collagen; amino acid sequences; hydrophobicity; molecular conformation;     Show all 6 Subjects
Abstract:
... Methods are given for analyzing regularly spaced patterns of amino acids in proteins and applied to the alpha 1 chain of collagen. Fourier methods use the transform of the sequence either embedded in a very long array or folded onto a fundamental base period. Filtering through a moveable "window" of definite width is used to display almost regular features at any chosen frequency. A pattern detect ...
DOI:
10.1002/bip.1977.360160609
PubMed:
880354

4. Effects of distance constraints on macromolecular conformation. II. Simulation of experimental results and theoretical predictions

Author:
Havel, T.F.; Crippen, G.M.; Kuntz, I.D.
Source:
Biopolymers 1979 v.18 no.1 pp. 73-81
ISSN:
0006-3525
Subject:
protein secondary structure,   etc   ; mathematical models; proteins; molecular conformation; prediction;     Show all 5 Subjects
Abstract:
... By generating classes of random structures for trypsin inhibitor and carp myogen, each consistent with a given set of experimental or theoretical information, we have assessed the relative utility of various experiments and theories in deducing the conformation of macromolecules We compare the calculated structures with known x-ray coordinates and compute for each class an average error. Small err ...
DOI:
10.1002/bip.1979.360180108

5. Sequence studies on the soybean chloroplast 16S-23S rDNA spacer region: comparison with other angiosperm sequences and proposal of a generalized RNA secondary structure model for the intergenic regions

Author:
Lanversin, G. de.; Pillay, D.T.N.; Jacq, B.
Source:
Plant molecular biology 1987 v.10 no.1 pp. 65-82
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; Glycine max; ribosomal RNA; restriction mapping; ribosomal DNA; chloroplast DNA; transfer RNA; alanine; genes; isoleucine; nucleotide sequences; DNA conformation; genomics; intergenic DNA; chloroplasts;     Show all 15 Subjects
Abstract:
... The sequence of the ribosomal spacer region of soybean chloroplast DNA including the 3' end of the 16S rRNA gene, the tRNA(Ala) and tRNA(Ile) genes (but not their introns), the three intergenic regions and the 5' end of the 23S rRNA gene, has been determined. This sequence has been compared to corresponding regions of other angiosperm chloroplast DNAs. Secondary structure models are proposed for t ...
DOI:
10.1007/BF00014187
PubMed:
24277464

6. The relatively large beta-tubulin gene family of Arabidopsis contains a member with an unusual transcribed 5' noncoding sequence

Author:
Marks, M.D.; West, J.; Weeks, D.P.
Source:
Plant molecular biology 1987 v.10 no.2 pp. 91-104
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; Arabidopsis thaliana; multigene family; tubulin; restriction mapping; Southern blotting; nucleotide sequences; amino acid sequences; messenger RNA; molecular conformation; linkage (genetics);     Show all 11 Subjects
Abstract:
... We have characterized the beta-tubulin gene family of Arabidopsis thaliana. Five distinct genes were cloned. and analyzed by restriction enzyme mapping and cross-hybridization studies. Three of the genes appear to be dispersed, whereas two others are linked within 1.5 kb of one another. The two linked genes are closely related and appear to have resulted from a fairly recent duplication. The three ...
DOI:
10.1007/BF00016147
PubMed:
24277495

7. Genes for tRNA(Asp), tRNA(Pro), tRNA(Tyr) and two tRNAs(Ser) in wheat mitochondrial DNA

Author:
Joyce, P.B.M.; Spencer, D.F.; Bonen, L.; Gray, M.W.
Source:
Plant molecular biology 1988 v.10 no.3 pp. 251-262
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; serine; aspartic acid; restriction mapping; mitochondrial DNA; transfer RNA; proline; tyrosine; genes; Triticum aestivum; molecular conformation; promoter regions;     Show all 12 Subjects
Abstract:
... We have begun a systematic search for potential tRNA genes in wheat mtDNA, and present here the sequences of regions of the wheat mitochondrial genome that encode genes for tRNA Asp (anticodon GUC), tRNAPro (UGG), tRNATyr (GUA), and two tRNAsSer (UGA and GCU). These genes are all solitary, not immediately adjacent to other tRNA or known protein coding genes. Each of the encoded tRNAs can assume a ...
DOI:
10.1007/BF00027402
PubMed:
24277519

8. Multiple sequence rearrangements accompanying the duplication of a tRNA(Pro) gene in wheat mitochondrial DNA

Author:
Joyce, P.B.M.; Spencer, D.F.; Gray, M.W.
Source:
Plant molecular biology 1988 v.11 no.6 pp. 833-843
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; Triticum aestivum; mitochondrial DNA; transfer RNA; proline; nucleotide sequences; restriction mapping; molecular conformation; genetic recombination;     Show all 9 Subjects
Abstract:
... In the course of isolating tRNA genes from wheat mtDNA, we have found the same tRNAPro gene in two different Hind III restriction fragments, H-P1 (0.7 kbp) and H-P2 (1.7 kbp). Sequences immediately flanking these duplicate genes are closely related, although not identical; sequence comparisons suggest that multiple rearrangements have occurred in the vicinity of the H-P2 tRNAPro gene, relative to ...
DOI:
10.1007/BF00019523
PubMed:
24272633

9. Nucleotide sequence of cDNA clones encoding the complete precursor for subunit delta of thylakoid-located ATP synthase from spinach

Author:
Hermans, J.; Rother, C.; Bichler, J.; Steppuhn, J.; Herrmann, R.G.
Source:
Plant molecular biology 1988 v.10 no.4 pp. 323-330
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; Spinacia oleracea; genes; adenosinetriphosphatase; zymogens; messenger RNA; nucleotide sequences; amino acid sequences; thylakoids; molecular conformation; plasma membrane; H-transporting ATP synthase;     Show all 12 Subjects
Abstract:
... The nucleotide sequence of the entire nuclear-encoded precursor for subunit delta of the ATP synthase from spinach thylakoid membranes was determined by cDNA sequencing. Appropriate recombinant DNAs were selected from pBr322 and lambda gt11 libraries made from polyadenylated RNA of greening spinach seedlings. The mature protein consists of 187 amino acid residues corresponding to a molecular weigh ...
DOI:
10.1007/BF00029882
PubMed:
24277563

10. Sequence of the plastid rDNA spacer region of the brown alga Pylaiella littoralis (L.) Kjellm. Evolutionary significance

Author:
Markowicz, Y.; Mache, R.; Loiseaux-de Goer, S.
Source:
Plant molecular biology 1988 v.10 no.5 pp. 465-469
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; ribosomal RNA; restriction mapping; evolution; ribosomal DNA; chloroplast DNA; transfer RNA; Phaeophyceae; alanine; genes; isoleucine; nucleotide sequences; genomics; intergenic DNA; molecular conformation; chloroplasts;     Show all 16 Subjects
Abstract:
... The DNA segment situated between the 16S and 23S rRNA genes belonging to the plastid genome of the brown alga Pylaiella littoralis (L.) Kjellm. has been sequenced. This small region (322bp) contains two unsplit tRNA genes separated by 3 bp. A comparison with similar regions from different plants shows that this region has evolved in two different ways according to the place of plants in evolution. ...
DOI:
10.1007/BF00014952
PubMed:
24277594

11. Transcription of ten ribosomal protein genes from tobacco chloroplasts: a compilation of ribosomal protein genes found in the tobacco chloroplast genome

Author:
Ohto, C.; Torazawa, K.; Tanaka, M.; Shinozaki, K.; Sugiura, M.
Source:
Plant molecular biology 1988 v.11 no.5 pp. 589-600
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; proteins; messenger RNA; genetic code; open reading frames; chloroplast DNA; ribosomes; gene expression; amino acid sequences; chromosome mapping; Nicotiana tabacum; genomics; transcription (genetics); introns; molecular conformation; chloroplasts;     Show all 16 Subjects
Abstract:
... Transcription of rps2, rps4, rps7, rps11, rps14, rps15, rps18, rp120, rp133 and rp136 from the tobacco chloroplast genome has been studied. Northern blot analysis has revealed that all these genes are transcribed in the chloroplast. Multiple transcripts were detected for all the genes and amounts of the transcripts were quite different among the ten genes. These ten ribosomal protein genes togethe ...
DOI:
10.1007/BF00017459
PubMed:
24272493

12. Transcription study of the genes encoded in the region of the junction between the large single copy and the inverted repeat A of spinach chloroplast DNA

Author:
Thomas, F.; Zeng, G.Q.; Mache, R.; Briat, J.F.
Source:
Plant molecular biology 1988 v.10 no.5 pp. 447-457
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; messenger RNA; histidine; plant proteins; transfer RNA; Spinacia oleracea; chloroplast DNA; ribosomes; gene expression; transcription (genetics); genes; nucleotide sequences; genomics; molecular conformation; chloroplasts; Escherichia coli;     Show all 16 Subjects
Abstract:
... The expression of the psbA, trnH-GUG and rps19' genes from spinach chloroplasts, coding respectively for the 32 kDa protein, the tRNAHis (GUG), and the putative ribosomal protein CS19', has been studied by cloning, Northern hybridization and 3' and 5' S1 mapping experiments. It is demonstrated that the putative transcription termination signal of the psbA gene does not function as a rho-independen ...
DOI:
10.1007/BF00014950
PubMed:
24277592

13. Modeling DNA supercoils and knots with B-spline functions

Author:
Hao, M.H.; Olson, W.K.
Source:
Biopolymers 1989 v.28 no.4 pp. 873-900
ISSN:
0006-3525
Subject:
protein secondary structure,   etc   ; mathematical models; DNA; DNA conformation;     Show all 4 Subjects
Abstract:
... A method is offered to model the complex trajectories of closed circular DNA supercoils and knots. The trajectories are approximated by polygons and analytical expressions of the curves are generated from the polygons with B-spline functions. The resulting curves are used to evaluate the writhe and elastic energy of a series of interrelated supercoils and to generate detailed atomic models of the ...
DOI:
10.1002/bip.360280407
PubMed:
2720128

14. A plant pseudogene for U1 RNA

Author:
Kiss, T.; Abel, S.; Solymosy, F.
Source:
Plant molecular biology 1989 v.12 no.6 pp. 709-711
ISSN:
0167-4412
Subject:
protein secondary structure,   etc   ; Solanum lycopersicum var. lycopersicum; pseudogenes; messenger RNA; loci; restriction mapping; small nuclear RNA; nucleotide sequences; molecular conformation; uridine;     Show all 10 Subjects
DOI:
10.1007/BF00044161
PubMed:
24271203

15. Gene expression during induction of somatic embryogenesis in carrot cell suspensions

Author:
Aleith, F.; Richter, G.
Source:
Planta 1991 v.183 no.1 pp. 17-24
ISSN:
0032-0935
Subject:
protein secondary structure,   etc   ; Daucus carota; somatic embryogenesis; embryo (plant); gene expression; genes; messenger RNA; complementary DNA; nucleotide sequences; plant proteins; molecular conformation; cell suspension culture; amino acid sequences; transcription (genetics);     Show all 14 Subjects
Abstract:
... We report the identification, via their cDNAs, of genes which are temporarily transcribed during the initiation of somatic embryogenesis in carrot (Daucus carota L.) cells cultured in an auxin-free medium. Their expression is roughly associated with the first morphogenetic, or globular, stage. A cDNA library (lambda gt 10) was established using poly(A)+-rich RNAs from cells deprived of auxin for 8 ...
DOI:
10.1007/BF00197562
PubMed:
24193528

16. Water Sorption of Gliadin

Author:
IL, BARBARA; DAUN, HENRYK; GILBERT, SEYMOUR G.
Source:
Journal of food science 1991 v.56 no.2 pp. 510-512
ISSN:
0022-1147
Subject:
protein secondary structure,   etc   ; acetic acid; gas chromatography; gliadin; hydrogen bonding; sorption; water uptake;     Show all 7 Subjects
Abstract:
... Crude wheat gliadin from acetic acid solution showed lower water sorption by pulse and frontal Inverse Gas Chromatography methods as compared to a static method but the pulse data for a highly purified Ponca wheat gliadin from ethanol agreed with static data for crude gliadin. Use of ethanol for dissolving gliadins for IGC column preparation gave sorption equivalent to the static method whereas ac ...
DOI:
10.1111/j.1365-2621.1991.tb05315.x

17. Molecular cloning and immunolocalization of two variants of the major basic nuclear protein (HCc) from the histone-less eukaryote Crypthecodinium cohnii (Pyrrhophyta)

Author:
Sala-Rovira, M.; Geraud, M.L.; Caput, D.; Jacques, F.; Soyer-Gobillard, M.O.; Vernet, G.; Herzog, M.
Source:
Chromosoma 1991 v.100 no.8 pp. 510-518
ISSN:
0009-5915
Subject:
protein secondary structure,   etc   ; nucleoproteins; structural genes; chromosomes; complementary DNA; amino acid sequences; amino acids; nucleotide sequences; amino acid composition; immunocytochemistry; molecular conformation;     Show all 11 Subjects
Abstract:
... Two clones that encode variants (HCc1 and HCc2) of the major basic nuclear protein of the dinoflagellate Crypthecodinium cohnii, were identified by immunoscreening of a cDNA expression library. The first clone carries a full-length cDNA with an open reading frame (HCc1) encoding 113 amino acids. The cDNA from the second clone lacks some of the 5' end, and the coding sequence is only 102 residues. ...
DOI:
10.1007/BF00352201
PubMed:
1764969

18. Conformational studies of anionic melittin analogues: effect of peptide concentration, pH, ionic strength, and temperature--models for protein folding and halophilic proteins

Author:
Ramalingam, K.; Aimoto, S.; Bello, J.
Source:
Biopolymers 1992 v.32 no.8 pp. 981-992
ISSN:
0006-3525
Subject:
protein secondary structure,   etc   ; Apis mellifera; melittin; molecular conformation; pH; ionic strength; temperature; salinity; sodium chloride; charge characteristics;     Show all 10 Subjects
Abstract:
... Melittin (MLT), a 26-residue cationic (net charge +5 at pH 7.2) peptide from bee venom, is well known to be a monomeric, approximately random coil; but when its charges are reduced by titration, by acetylation (net charge +2) or succinylation (net charge -2), or by screening by salt, it goes over to tetrameric alpha-helix. The conversion is promoted by raising the peptide concentration. The tetram ...
DOI:
10.1002/bip.360320809
PubMed:
1420981

19. The shapes of backbones of chain molecules: three-dimensional characterization by spherical shape maps

Author:
Arteca, G.A.; Mezey, P.G.
Source:
Biopolymers 1992 v.32 no.12 pp. 1609-1621
ISSN:
0006-3525
Subject:
protein secondary structure,   etc   ; proteins; molecular conformation; simulation models; equations;     Show all 5 Subjects
Abstract:
... In this work we present a new method to characterize the shape of flexible chain molecules. The procedure associates a sphere and a spherical shape map with each given molecular backbone. Each point on the sphere is classified according to the crossing pattern obtained when the backbone is looked at along a direction defined by the center of the sphere and the chosen point. The approach is simple ...
DOI:
10.1002/bip.360321204

20. Conformational preference functions for predicting helices in membrane proteins

Author:
Juretic, D.; Lee, B.; Trinajstic, N.; Williams, R.W.
Source:
Biopolymers 1993 v.33 no.2 pp. 255-273
ISSN:
0006-3525
Subject:
protein secondary structure,   etc   ; proteins; cell membranes; molecular conformation; prediction; computer software; computer analysis; amino acid sequences; algorithms;     Show all 9 Subjects
Abstract:
... A suite of FORTRAN programs, PREF, is described for calculating preference functions from the data base of known protein structures and for comparing smoothed profiles of sequence-dependent preferences in proteins of unknown structure. Amino acid preferences for a secondary structure are considered as functions of a sequence environment. Sequence environment of amino acid residue in a protein is d ...
DOI:
10.1002/bip.360330208
PubMed:
8485300