Peptide

... high level 4. It would remain at a very low level I think the answer is 1 2,Which of the following proteins are least likely to contain a signal peptide? Options: 1.Cytosolic proteins 2. Nuclear Proteins 3. Secretory proteins 4. Membrane proteins I think the answer is membrane proteins

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... to be identified. Also: Alternative start codons Alternative poly-A tailing RNA editing (such as conversion of a base to inosine) Association of peptide chains into quartenary structures, with potential for alternative quartenary structures and differences in function So, if you decide to study ...

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proteolytic cleavage is breaking of peptide bond

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no, signal peptide is on protein sequence. You need to analyse it on-line to see whether there is some predicted signal peptide http://www.cbs.dtu.dk/services/

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... he wants is primer for cloning, not for sequencing. Imagine you have sequence ATG GTC ATC GTC TGA GTC and first three amino acids belong to signal peptide (in reality it's much longer). In such case, you want your primer to start at GTC and go on further. By lipoprotein motif he probably meant ...

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