scholarly journals Complexes between Nucleotide Base and Amino Acid. I. Crystal Structure of Cytosine:N-Formylglycine

1975 ◽  
Vol 48 (3) ◽  
pp. 848-852 ◽  
Author(s):  
Minoru Ohki ◽  
Akio Takenaka ◽  
Hirotaka Shimanouchi ◽  
Yoshio Sasada
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Nucleotide Base

scholarly journals Complexes between Nucleotide Base and Amino Acid. II. Crystal Structure of 5-Bromocytosine :N-Tosyl-L-glutamic Acid

1976 ◽  
Vol 49 (12) ◽  
pp. 3493-3497 ◽  
Author(s):  
Minoru Ohki ◽  
Akio Takenaka ◽  
Hirotaka Shimanouchi ◽  
Yoshio Sasada
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Glutamic Acid ◽  
Nucleotide Base

ChemInform Abstract: COMPLEXES BETWEEN NUCLEOTIDE BASE AND AMINO ACID PART 1, CRYSTAL STRUCTURE OF CYTOSINE, N-FORMYLGLYCINE

1975 ◽  
Vol 6 (23) ◽  
pp. no-no
Author(s):  
MINORU OHKI ◽  
AKIO TAKENAKA ◽  
HIROTAKA SHIMANOUCHI ◽  
YOSHIO SASADA
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Nucleotide Base

HYDROGEN-BONDED COMPLEX BETWEEN NUCLEOTIDE BASE AND AMINO ACID, CRYSTAL STRUCTURE OF 5-BROMOCYTOSINE:N-TOSYL-L-GLUTAMIC ACID

1974 ◽  
Vol 3 (6) ◽  
pp. 551-554
Author(s):  
Minoru Ohki ◽  
Akio Takenaka ◽  
Hirotaka Shimanouchi ◽  
Yoshio Sasada
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Glutamic Acid ◽  
Acid Crystal ◽  
Nucleotide Base ◽  
Amino Acid Crystal ◽  
Hydrogen Bonded

scholarly journals Crystal structure of Aspergillus fumigatus AroH , an aromatic amino acid aminotransferase

2021 ◽  
Author(s):  
Sharon Spizzichino ◽  
Gioena Pampalone ◽  
Mirco Dindo ◽  
Agostino Bruno ◽  
Luigina Romani ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Aspergillus Fumigatus ◽  
Aromatic Amino Acid ◽  
Aromatic Amino Acid Aminotransferase

The first 3′:5′-cyclic nucleotide–amino acid complex:L-His–cIMP

2012 ◽  
Vol 68 (8) ◽  
pp. o311-o316 ◽  
Author(s):  
Katarzyna Ślepokura
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Cyclic Nucleotide ◽  
Phosphate Group ◽  
Specific Amino Acid ◽  
Π Stacking ◽  
Cyclic Phosphate ◽  
Nucleotide Recognition ◽  
Group Play ◽  
Phosphate Groups

In the crystal structure of the L-His–cIMP complex,i.e.L-histidinium inosine 3′:5′-cyclic phosphate [systematic name: 5-(2-amino-2-carboxyethyl)-1H-imidazol-3-ium 7-hydroxy-2-oxo-6-(6-oxo-6,9-dihydro-1H-purin-9-yl)-4a,6,7,7a-tetrahydro-4H-1,3,5,2λ5-furo[3,2-d][1,3,2λ5]dioxaphosphinin-2-olate], C6H10N3O2+·C10H10N4O7P−, the Hoogsteen edge of the hypoxanthine (Hyp) base of cIMP and the Hyp face are engaged in specific amino acid–nucleotide (His...cIMP) recognition,i.e.by abutting edge-to-edge and by π–π stacking, respectively. The Watson–Crick edge of Hyp and the cIMP phosphate group play a role in nonspecific His...cIMP contacts. The interactions between the cIMP anions (anti/C3′–endo/trans–gauche/chair conformers) are realized mainly between riboses and phosphate groups. The results for this L-His–cIMP complex, compared with those for the previously reported solvated L-His–IMP crystal structure, indicate a different nature of amino acid–nucleotide recognition and interactions upon the 3′:5′-cyclization of the nucleotide phosphate group.

Reactivities of Piperazine-2,5-diones in Radical Bromination Reactions

1996 ◽  
Vol 49 (11) ◽  
pp. 1229 ◽  
Author(s):  
CLL Chai ◽  
DCR Hockless ◽  
AR King
Keyword(s):  
Crystal Structure ◽  
Amino Acid ◽  
Chemical Reactivity ◽  
Trans Isomers ◽  
Radical Bromination ◽  
Conformational Effects ◽  
Cis And Trans Isomers ◽  
The Difference ◽  
Cis And Trans

The reactivities of various N,N'- diacetylated piperazine-2,5-diones towards radical bromination reactions are reported. The studies show that glycyl centres of piperazine-2,5-diones are more reactive towards radical bromination reactions compared to α-substituted amino acid centres. In addition, large differences in reactivities were observed for the cis and trans isomers of N,N'-diacetylated alanine anhydride. Single-crystal structure determination of each isomer revealed that conformational effects may account for the difference in chemical reactivity.

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