Advertisement

Crystal structure of hirudonine sulphate—a rare polyamine

  • M Nethaji
  • Vasantha Pattabhi
Physical and Theoretical
  • 12 Downloads

Abstract

Hirudonine sulphate (C9H23N7. 1·5 H2SO4. 2·5 H2O) is triclinic inPI space group with cell constantsa=7·168(9),b=14·534(6),c=11·918(5) Å, α=110·50(3), β=108·75(6) and γ=79·16(6)°,V=1097(2)Å3,Mr=421·4,Z=2,d x=1·358(2) gcm−3,d c=1·276 gcm−3. MoKα (λ=0·7903 Å), μ=1·94 cm−1,F(000)=436,T=295 K,R(F)=0·144. The structure was solved by direct methods and refined to a final R factor of 0·144 for 1036 unique reflections. One of the sulphur atoms is in special position and is disordered. The amine molecule is hydrogen-bonded to the sulphate oxygen through water molecules. Water channels are formed at unique places involving water oxygens, amine and sulphate oxygens along thea axis.

Keywords

Polyamines hirudonine sulphate water channels 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Chandrasekar K, Vasantha Pattabhi and Ragunathan S 1982Acta Cryst. B38 2538CrossRefGoogle Scholar
  2. Cohen S S 1971Introduction to polyamines (Englewood Cliffs, NJ: Prentice-Hall)Google Scholar
  3. Fruton J S and Simmonds S 1965General Biochemistry (New Delhi: Asia Publishing House)Google Scholar
  4. Johnson C K 1965ORTEP: A FORTRAN thermal-ellipsoid plot program for crystal structure illustrations Report ORNL-3794, Oakridge National Laboratory, TennesseeGoogle Scholar
  5. Langridge R, Marvin D A, Seeds W E, Wilson H R, Cooper C W, Wilkins M H F and Hamilton L D 1960J. Mol. Biol. 2 38CrossRefGoogle Scholar
  6. Liquori A M, Constantino V, Creseenzi V, Elia V, Giglio E, Puliti R, De Santis Savino M and Vitageino V 1967J. Mol. Biol. 24 113CrossRefGoogle Scholar
  7. Main P, Fiske S J, Hull S E, Lessinger L, Germain G, Declercq J P and Woolfson M M 1980A system of computer programs for the automatic solution of crystal structures from X-ray diffraction data University of York, EnglandGoogle Scholar
  8. Scalabrino G and Ferioli M E 1981Adv. Cancer Res. 35 151Google Scholar
  9. Scalabrino G and Ferioli M E 1982Adv. Cancer Res. 36 1Google Scholar
  10. Sheldrick G M 1976SHELX76: Program for crystal structure determination University of Cambridge, EnglandGoogle Scholar
  11. Stevens L 1967Biochem. J. 103 811Google Scholar
  12. Suevalsky M, Tranb W, Shmueli D and Subirana J A 1969J. Mol. Biol. 42 363CrossRefGoogle Scholar
  13. Thailambal V G, Vasantha Pattabhi, Lee F L, Le Page Y and Gabe E J 1985Acta Cryst. C41 105CrossRefGoogle Scholar
  14. Tsuboi M 1964Bull. Chem. Soc. Jpn. 37 1514CrossRefGoogle Scholar
  15. Vasantha Pattabhi and Chandrasekar K 1982 inConformation in biology (eds) R Srinivasan and R H Sarma (Adenine Press) p. 291Google Scholar
  16. Woo N, Seeman N C and Rich A 1979Biopolymers 18 539CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 1987

Authors and Affiliations

  • M Nethaji
    • 1
  • Vasantha Pattabhi
    • 1
  1. 1.Department of Crystallography and BiophysicsUniversity of MadrasGuindy CampusIndia

Personalised recommendations