Mikrotubula: Béda antara owahan
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== Delengen uga == |
== Delengen uga == |
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* [[Mikrofilamen]] |
* [[Mikrofilamen]] |
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* [[Silia]] |
* [[Silia]] |
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* [[Sel]] |
* [[Sel]] |
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== Cathetan suku == |
== Cathetan suku == |
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Révisi kala 20 Dhésèmber 2012 23.13
Mikrotubula yaiku organel sel,ing jero sitoplasma kabeh sel eukariot, arupa silinder dawa kang duweni rongga kanthi diameter njaba kira-kira 25 nm lan diameter njero ± 12 nm.[1][2] Dawane werna-werna saka pirang-pirang nanometer nganti prang-pirang mikrometer.[1] Mikrotubula kasusun saka molekul-molekul bunder protein globular kang diarani tubulin, kang sacara spontan nggabung ing kaanan tertemtu mbentuk silinder dawa kang nduweni rongga.[1][2] Saben molekul tubulin kasusun saka rong subunit polipeptida kang arupa,α-tubulin lan β-tubulin.[2] Saben molekul tubulin duweni bobot molekul 110.000 Dalton lan minangka dimer saka protein tubulin α lan tubulin β.[1] Ing irisane, mikrotubula katon kasusun saka 13 subunit ing susunan heliks.[1] Subunit iki yaiku bageyan saka 13 benang tubulin, saben subnit karonce mbentuk heliks kang minangka bageyan saka dinding mikrotubula.[1] Sakloron macam tubulin iki kasusun kanthi selang seling sadawaning benang.[1]
Enzim protease aspartat kang disekresi dening HIV lan avian myeloblastosis virus ditemokake nggondheli proses ronce mikrotubula, kanthi ngiris hormon MAP.[3]
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Cathetan suku
- ↑ a b c d e f g Salisbury FB, Ross CW. 1995.Fisiologi Tumbuhan. Indonesia: Penerbit ITB Bandung. Hal 22. ISBN 979-8591-20-8.
- ↑ a b c Campbell NA, Reece JB, Mitchell LG. 2002. Biologi, Edisi Kelima, Jilid I. Jakarta: Erlangga. Hal:130, 126 ISBN 979-688-468-2
- ↑ Masalah transklusi: {{En}} mung bisa kaanggo ing mandhala aran Barkas. Anggonen {{lang-en}} utawa {{en icon}} baé."Proteolytic cleavage of microtubule-associated proteins by retroviral proteinases". Department of Zoophysiology, University of Göteborg; Wallin M, Deinum J, Goobar L, Danielson UH. Dibukak ing 2010-06-25.
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