Bioinformatics Answers

If two domains from a single protein are aligned with each other, what would be the reason for the positions of i.e. 15 cysteine residues being conserved in both?

The challenge with protein arrays is?

Proteins are NOT good as biomarkers because?

They're levels are more accurately quantified

They have low levels of expression

They have different 3D structures

If two domains from a single protein are aligned with each other, what would be the reason for the positions of i.e. 15 cysteine residues being conserved in both?

If two domains from a single protein are aligned with each other, what would be the reason for the positions of i.e. 15 alanine residues being conserved in both?

What criteria do restriction enzymes have to meet when deciding which to choose in order to clone a specific gene into the multiple cloning site of a plasmid (e.g. pUC18)?

Biological Sequence alignment.
a) Calculate the alignment score for different alignments and indicate the best possible
aligned sequence for the following sequence:
ACCTAGCTAGCCGAT
ACCCCTAGGCGAAA
Use Match: +1, Mismatch:-1 and Indel: -2
i. Show all possible alignments and their scores
ii. Which is the best possible alignment? State the reason.
b) Carry out a Multiple Sequence Alignment (MSA) for the protein Ras 1. Use the UniProt
(http://www.uniprot.org/) database for retrieving the protein sequence of keratin type2.
The protein sequences from the following organisms must be included in your MSA.
1) Homo sapiens (Human)
2) Drosophila melanogaster (Fruit Fly)
3) Candida albicans (Yeast)
4) Mus musculus (Mouse)
5) Gallus gallus (Chicken)