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Biomedical subjects

M Sundaralingam

Publications and source records attributed to M Sundaralingam.

At least 163 records · Page 9Linked to original sources

PubMed1973

Crystal structure and molecular conformation of formycin monohydrates. Possible origin of the anomalous circular dichroic spectra in formycin mono- and polynucleotides.

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Antibiotics, Antineoplastic↗

PubMed1973

Conformational studies on guanosine nucleotides and polynucleotides. The effect of the base on the glycosyl and backbone conformations.

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Adenine↗

PubMed1973

Conformational studies on pyrimidine 5'-monophosphates and 3',5'-diphosphates. Effect of the phosphate groups on the backbone conformation of polynucleotides.

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Methods↗

PubMed1972

Stereochemistry of nucleic acids and their constituents. 28. The crystal and molecular structure of N 2 -dimethylguanosine. A transfer ribonucleic acid rare nucleoside located at the junction of the anticodon and dihydrouridine arms.

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Chemical Phenomena↗

PubMed1972

Conformational analysis of the sugar ring in nucleosides and nucleotides. A new description using the concept of pseudorotation.

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Carbohydrates↗

PubMed1972

Crystal structure of the aminoglycosyl antibiotic puromycin dihydrochloride pentahydrate. Models for the terminal 3'-aminoacyladenosine moieties of transfer RNA's and protein-nucleic acid interactions.

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Adenine↗

PubMed1972

Crystallization and molecular packing of E. coli arginine transfer RNA.

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Arginine↗

PubMed1972

Nucleotide conformations.

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Adenine Nucleotides↗

PubMed1972

Crystal and molecular structure of a naturally occurring dinucleoside monophosphate. Uridylyl-(3'-5')-adenosine hemihydrate. Conformational "rigidity" of the nucleotide unit and models for polynucleotide chain folding.

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Adenine Nucleotides↗

PubMed1972

Stereochemistry of nucleic acids and their constituents. XXVII. The crystal structure of 5'-methyleneadenosine 3',5'-cyclic monophosphonate monohydrate, a biologically active analog of the secondary hormonal messenger cyclic adenosine 3',5-monophosphate. Conformational "rigidity" of the furanose ring in cyclic nucleotides.

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Crystallography↗

PubMed1972

Discussion paper: molecular structures and conformations of the phospholipids and sphingomyelins.

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Amino Alcohols↗

PubMed1972

Stereochemistry of of nucleic acids and their constituents. XXVI. The crystal and molecular structure of a 1:1 adduct of ethanol and 3'-deoxy-3'-(dihydroxyphosphinylmethyl)adenosine, an analog of adenosine 3'-monophosphate.

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Adenosine↗

PubMed1972

X-ray diffraction study of a new crystal form of yeast phenylalanine tRNA.

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Phenylalanine↗

PubMed1972

Molecular conformation of adenosine 3',5'-monophosphonate monohydrate.

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Cyclic AMP↗

PubMed1972

Structures of the visual chromophores and related pigments: a conformational basis of visual excitation.

A detailed conformational analysis of the known crystal structures of vitamin A, carotenoid, and xanthenoid derivatives has been made. These studies suggest that the visual chromophore 11-cis retinal and its isomers may each occur in several different conformational states, which would be expected to have different lightabsorbing characteristics. The presence of such states for 11-cis retinal and all-trans retinal may contribute to the observed rhodopsin intermediates that have been characterized by different lambda(max) values, and to the breadth of spectral response in scotopic and color vision.

Carotenoids↗

PubMed1971

Stereochemistry of nucleic acids and their constituents. XXII. The crystal and molecular structure of N 6-(2-isopentenyl)-2-methylthioadenine, a modified base of transfer ribonucleic acid essential for messenger ribonucleic acid directed ribosome binding to transfer ribonucleic acid.

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Adenine↗

PubMed1971

Stereochemistry of nucleic acids and their constituents. 23. Crystal and molecular structure of dihydrouridine "hemihydrate," a rare nucleoside with a saturated base occurring in the dihydrouridine loop of transfer ribonucleic acids.

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Chemical Phenomena↗

PubMed1971

Crystal structure of a naturally occurring dinucleoside monophosphate: uridylyl (3',5') adenosine hemihydrate.

The crystal structure of uridylyl (3',5') adenosine hemihydrate has been analyzed by x-ray diffraction. The two independent molecules found in the asymmetric unit exhibit conformations that differ significantly from those found in double-helical RNA. The conformational information obtained from this analysis provides considerable insight into the possible conformations of nonhelical "loop" regions of transfer RNA, as well as single-stranded regions of nucleic acids in general.

Base Sequence↗