Alternative base in tRNA?

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LeeQian
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Alternative base in tRNA?

Post by LeeQian » Tue Sep 27, 2005 3:02 pm

How to understand this statement:All tRNA molecules contain bases other
than A,G,C,and U,and these "unusual"bases are not present in oringinal
transcript.
Thanks a lot~~

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GreenDog
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Post by GreenDog » Tue Sep 27, 2005 5:40 pm

After transcription the tRNA undergoes "post transcriptional modification" which includes deletions, additions and alterations of bases. Alteration usually in means methylation on the regular bases, or a structural change to Inosine.

look here for additional information
http://medlib.med.utah.edu/RNAmods/

lara
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trna

Post by lara » Tue Oct 04, 2005 9:54 am

trna has dihydroxyuridine puedouracilarm etc.out of convention.go 4 the struc.detailz.

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