free hosting   image hosting   hosting reseller   online album   e-shop   famous people 
Free Website Templates
Free Installer

Aflatoxin B2:

General Information:
Aflatoxin B2 is a mycotoxin, which may be produced by mold species of the genus Aspergillus in areas of the world with hot and humid climate.

Physicochemical Data:
2,3,6aα,8,9,9aα-Hexahydro-4-methoxycyclo penta[c]furo[3´,2´:4,5]furo[2,3-h][l]benzopyran-1,11-dione
CAS registry number: 7220-81-7
Synonyms: Aflatoxin B2, AFB2,
Dihydroaflatoxin B1

 

Conversion of a new metabolite to aflatoxin B2 by Aspergillus parasiticus.

T E Cleveland, D Bhatnagar, C J Foell, and S P McCormick

Southern Regional Research Center, U.S. Department of Agriculture, New Orleans, Louisiana 70179.
Appl Environ Microbiol. 1987 December; 53(12): 2804–2807.

A new metabolite which could be converted to aflatoxin (AF) B2 was detected during cofermentation analysis of two nonaflatoxigenic strains (SRRC 2043 and SRRC 163) of Aspergillus parasiticus. SRRC 2043, which accumulates the xanthone O-methylsterigmatocystin (OMST), a late precursor in the AFB1 pathway, was observed to accumulate another chemically related compound (HOMST; molecular weight, 356); SRRC 163 is blocked early in the pathway and accumulates averantin. During cofermentation of the two strains, levels of OMST and HOMST were observed to be greatly reduced in the culture, with simultaneous production of AFB1, AFB2, and AFG1. Intact cells of SRRC 163 were able to convert pure OMST or its precursor, sterigmatocystin, to AFB1 and AFG1 without AFB2 accumulation; the same cells converted isolated HOMST to AFB2 with no AFB1 or AFG1 production. The results indicate that AFB2 is produced from a separate branch in the AF biosynthetic pathway than are AFB1 and AFG1; AFB2 arises from HOMST, and AFB1 and AFG1 arise from sterigmatocystin and OMST.

  

Disclaimer:

This page was made by the students of bioinformatics, the OpenUniversity, BirZeit P.A., as a homework in the Survival in the iJungle. It has no intelectual value whatsoever.

If you think your copyright has been violated, we shall remove the offending content at once. Please eMail to: Abuse17@biochem-openu.cjb.net and start your SUBJECT field with the word Abuse17 (Case sensitive) that it might penetrate our spam protection.

HABASAR

Links of the YOLL itself
We must have at least 100 pages here.

  1. 17dmag

  2. 7aad

  3. actinomycin

  4. alfatoxin-b1

  5. aflatoxin-b2

  6. aflatoxin-g1

  7. aflatoxin-g2

  8. aflatoxin-m1

  9. aflatoxin-m2

  10. anisomycin

  11. ascomycin

  12. Blukher

  13. Bukharin

  14. dybenko

  15. frinovsky

  16. geldanamycin

  17. k252a

  18. k252b

  19. kt5720

  20. kt5823

  21. leptomycin

  22. Link-Exchange

  23. mithramycin

  24. mitomycin

  25. nonactin

  26. Ochratoxin

  27. parthenolide

  28. Snorring

  29. staurosporine

  30. tinnitus

  31. trichostatin

  32. tukhachevsky

  33. verruculogen

  34. vomitoxin

  35. wortmannin

  36. yakir

  37. yegorov

  38. yezhov

  39. zearalenone

Here come some links to top-rated hrefs, such as Microsoft, wikipedia, Google and Yahoo :google, microsoft, yahoo, wikipedia

Now come links to these of fermentek product pages, that are needy :  .the homepage of fermentek, FK506 or tacrolimus, products of Fermentek: staurosporine, K252A, aflatoxin, Sirolimus (Rapamycin)

And other link beggars:

Tinnitus. about some guys that had tinnitus

Nonactin at noneto. Some facts about nonactin. Why nobody needs it. Who is prof Nigel mister nonactin, and what is his role in promiliad