what proteins might be associated with DNA?

Answer 1

Prokaryotic proteins -
1. Cro and repressor proteins
2. LacI purine repressor proteins (PurR)
3. FokI restriction endonuclease (DNA-recognition region)
4. Gamma-delta recombinase protein
5. Hin recombinase protein
6. Trp repressor protein
7. Diptheria tox repressor
8. Catabolite gene activator proteins (CAP)

Eukaryotic proteins -
Homeodomain proteins
2. RAP1 protein
3. Prd paired protein
4. Tc3 transposase protein
5. TFIIB family
6. Interferon regulatory factor
7. Transcription factor family
8. ETS domain family
9.TATA Box-Binding Proteins

These are some protiens associated with DNA

Answer 2

Moomoo and Doctor J both have really good answers - all proteins are associated with DNA in the sense that all are produced from being first transcribed and then translated from the order of bases on the DNA.

However it sounds like the question may be referring to physical association, in which case as Doctor J said - DNA polymerases to replicate the DNA etc, repair proteins, RNA polymerase for transcription, and also I'd add in histones - a DNA strand is very long, and needs to be really compacted in order to fit inside the cell, let alone the nucleus! And this is achieved largely by proteins - the helix is wrapped around histone cores (a histone core consists of an octomer of 4 histone proteins - 2 each of histones H2A, H2B, H3 and H4), and then histone H1 is used to further compact the DNA into the chromatin fibre structure. This fibre then loops round a bit more and is attached to a scaffold of other proteins... I'm not really sure if people actually know in any detail about this stage of packing or if they have names for the protein... but basically it's pretty packed up to form a chromosome! So histones are proteins which are pretty important in their association with DNA (in eukaryotes that is - prokaryotes like bacteria compact their DNA a bit differently)

Answer 3

First of all, adenine, thymine, guanine and cytosine are nucleic acids...you know, bases that make up DNA. NOT proteins. That person needs to study a bit harder.

Second, ALL proteins are associatd with DNA. That is a central dogma of genetics. DNA is transcribed into proteins. In other words, one gene makes one protein product. In truth, one gene can be alternatively spliced or regulated to create several versions of a protein product.

On the other hand, if you are talking about proteins that manipulate DNA...think transcription factors and ribosomes.

Answer 4

Hi Miriam. Moomoo gave you a very good answer. I think there are several ways to 'interpret' this question. On a simple level, some common proteins associated with DNA are:
1) DNA repair proteins
2) DNA polymerase (duplicates DNA for cell division and for repair)
3) RNA polymerase (transcribes DNA into RNA for gene expression).

Hope this is helpful. Best wishes.

Answer 5

adenine, thymine, guanine, cytosine