Christopher Chetsanga
Christopher J. Chetsanga (an haife shi a shekara ta 1935 a Murehwa, Rhodesia) fitaccen masanin kimiyar kasar Zimbabwe ne wanda memba ne a Kwalejin Kimiyya ta Afirka da Cibiyar Kimiyya ta Duniya.[1][2] Ya gano enzymes guda biyu da ke cikin gyaran DNA.[3][4] Ya kuma riƙe muƙaman gudanarwa na ilimi daban-daban kamar Mataimakin Shugaban jami'a, Darakta da Dean.
 Christopher Chetsanga | |
|---|---|
| Rayuwa | |
| Haihuwa |
Murewa (en)  , 22 ga Augusta, 1935 (88 shekaru) |
| ƙasa | Zimbabwe |
| Karatu | |
| Makaranta |
University of Toronto (en) University of California, Berkeley (en) Pepperdine University (en) |
| Sana'a | |
| Sana'a |
biochemist (en) |
| Employers |
Jami'ar Harvard University of Zimbabwe (en) University of Michigan (en) |
| Kyaututtuka |
gani
|
Tarihin Rayuwa gyara sashe
An haifi Chetsanga a Murewa, Zimbabwe a ranar 22 ga watan Agusta 1935,[5] kuma ya yi baftisma a shekarar 1948. A lokacin ƙuruciyarsa, ya yi karatu a Nhowe Mission, kuma ya ci gaba da karatu a Jami'ar California, Berkeley inda ya sami BSc a shekara ta 1965. Chetsanga kuma yayi karatu na wani lokaci a Jami'ar Pepperdine.[6] A cikin shekarar 1969, ya sami MSc da PhD a fannin ilimin sunadarai da ilimin halittu daga Jami'ar Toronto kafin ya zama post-doctoral fellow na biyu a Jami'ar Harvard tsakanin shekarun 1969 da 1972.[5] Tsakanin shekarun 1972 zuwa 1983 ya zama Farfesa a Jami'ar Michigan, sannan a shekara ta 1983 ya tafi ya zama babban malami a Biochemistry na Jami'ar Zimbabwe.[7] A cikin shekarar 1990, Shugaba Robert Mugabe ya ba shi lambar yabo ta shugaban ƙasa don ba da gudummawa mai mahimmanci ga kimiyya da fasaha.[5][8][9] An kuma ba shi lambar yabo ta Tauraron Zimbabwe.[10] A halin yanzu shi ne mataimakin shugaban jami'ar Zimbabwe Ezekiel Guti.[11]
A shekara ta 2004, lokacin da aka kafa Kwalejin Kimiyya ta Zimbabwe, an naɗa Chetsanga a matsayin shugaban makarantar na farko.[12] Chetsanga ya ba da shawarar yin amfani da hanyoyin samar da abinci da aka gyara a matsayin mafita mai yuwuwar matsalar karancin abinci a Afirka a cikin shekarar 2020.[13]
Nasarorin Kimiyya gyara sashe
Chetsanga ya gano enzymes guda biyu da ke cikin gyaran (repair) DNA da ya lalace: na farko, foramidopyrimidine DNA glycosylase, wanda ke cire 7-methylguanine da ya lalace daga DNA (1979),[4] da na biyu, purine imidazole-ring cyclase, wanda ya sake rufe imidazole zobba na guanin dan adenine lalacewa ta x-irradiation (1985).[3]
A cewar Chetsanga, binciken da ya mayar da hankali a cikin aikinsa na kimiyya ya kasance akan DNA da RNA tsarin da cikakkun bayanai na aiki kamar yadda suke da alaƙa da ƙwayar salula da ci gaban cuta.[14]
Zaɓaɓɓun wallafe-wallafe gyara sashe
- C. J. Chetsanga; V. Boyd; L. Peterson; K. Rushlow (1 January 1975). "Single-stranded regions in DNA of old mice" (PDF). Nature. 253 (5487): 130–131. doi:10.1038/253130A0. ISSN 1476-4687. PMID 1110761. Wikidata Q59071826.
- C. J. Chetsanga; Tomas Lindahl (10 August 1979). "Release of 7-methylguanine residues whose imidazole rings have been opened from damaged DNA by a DNA glycosylase from Escherichia coli". Nucleic Acids Research. 6 (11): 3673–84. doi:10.1093/NAR/6.11.3673. ISSN 0305-1048. PMC 327965. PMID 386277. Wikidata Q24632415.
- C J Chetsanga; C Grigorian (February 1985). "In situ enzymatic reclosure of opened imidazole rings of purines in DNA damaged by gamma-irradiation". Proceedings of the National Academy of Sciences of the United States of America. 82 (3): 633–7. Bibcode:1985PNAS...82..633C. doi:10.1073/PNAS.82.3.633. ISSN 0027-8424. PMC 397099. PMID 3856219. Wikidata Q24568209.
Manazarta gyara sashe
- ↑ AAS. "Chetsanga, J. Christophe, Prof." Archived 2014-09-03 at the Wayback Machine, Fellow of AAS since 1986; Biochemistry and Molecular Biology, Nairobi, unknown. Retrieved on 28 August 2014.
- ↑ "Christopher Chetsanga - Pepperdine's Outstanding Alumni Abroad | Pepperdine University". www.pepperdine.edu. Retrieved 2022-10-03.
- ↑ 3.0 3.1 Chetsanga, C.J.; Grigorian, C. (1985). "In situ enzymatic reclosure of opened imidazole rings of purines in DNA damaged by gamma-irradiation". Proceedings of the National Academy of Sciences of the United States of America. 82 (3): 633–637. Bibcode:1985PNAS...82..633C. doi:10.1073/pnas.82.3.633. JSTOR 25324. PMC 397099. PMID 3856219.
- ↑ 4.0 4.1 Chetsanga, C.J.; Lindahl, T. (1979). "Release of 7-methylguanine residues whose imidazole rings have been opened from damaged DNA by a DNA glycosylase from Escherichia coli". Nucleic Acids Res. 6 (11): 3673–84. doi:10.1093/nar/6.11.3673. PMC 327965. PMID 386277.
- ↑ 5.0 5.1 5.2 "CHETSANGA Christopher J." TWAS. The World Academy of Science. Retrieved 19 July 2020.
- ↑ David Mubvumbi, Paradzayi (2016). Christianity And Traditional Religions Of Zimbabwe : Contrasts And Similarities. Westbow Press. ISBN 9781512745108. Retrieved 19 July 2020.
- ↑ "Prof. Christopher James Chetsanga". University of Zimbabwe. Retrieved 19 July 2020.
- ↑ "EAI International Conference for Research, Innovation and Development for Africa". EAI. June 2017. Archived from the original on 13 September 2019. Retrieved 19 July 2020.
- ↑ "Chetsanga Christopher". African Academy of Sciences. Archived from the original on 19 October 2019. Retrieved 19 July 2020.
- ↑ Ziana, New (2021-08-09). "Zimbabwe awards civilian heroes - New Ziana" (in Turanci). Retrieved 2022-10-03.[permanent dead link]
- ↑ "Zimbabwe Ezekiel Guti University - Home". www.zegu.ac.zw. Retrieved 2021-06-02.
- ↑ "OWSD Zimbabwe National Chapter is Launched". Organization for women in science for the developing world. 20 November 2018. Archived from the original on 19 July 2020. Retrieved 19 July 2020.
- ↑ "GMB to import GMO Maize". NewsdzeZimbabwe. 23 April 2020. Retrieved 19 July 2020.
- ↑ "Christopher J. Chetsanga". Pepperdine. Archived from the original on 19 July 2020. Retrieved 19 July 2020.