The elution volume of an enzyme on a gel filtration column can be predicted from a) its enzyme activity b) its protein absorbance at 280 nm c) subunit composition and monomer molecular mass(es) d) Choices a) and b) are both correct.

3269

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DNA binding by proteins with the helix-turn-helix (HTH) motif does not involve a) altered stacking of the DNA at the center of symmetry. b) hydrogen bonds, salt bridges, and van der Waals contacts. c) interactions with base pairs in the major groove of DNA. d) interactions with the sugar-phosphate backbone of DNA.

2140

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When it functions as a "second messenger", cAMP a) acts outside the cell to influence cellular processes. b) acts "second in importance" to AMP. c) activates all cytosolic protein kinases. d) activates the cAMP-dependent protein kinase.

2408

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Can DeCypher be used for protein struc-ture modeling?

2098

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How to Insert Genomic DNA into yeast ?

2155

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What is Phantom Gene Sequence?

2405

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How to Count number of nucleotide substitutions ?

2280

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What is the secondary structure of intron ?

2181

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What are oesophageal molecular markers?

2141

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What is the criteria for LTQ (LC-MS/MS) SEQUEST search?

2362

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How to find flanking region ?

2445

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How to identify common acc.numbers from among a set of files ?

2829

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What is enzyme-ligand interaction?

2010

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How do ESTs work?

1982

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How to Filter & remove non-sequence data from a FASTA FILE using Perl scripts ?

2239

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