Login

Join for Free!
116769 members


dna architecture and chelates

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

Moderator: BioTeam

dna architecture and chelates

Postby choozi » Sat Oct 10, 2009 12:06 pm

what is DNA architecture? and what sort of chelate are involved in DNA? can anyone tell me the links regarding this information? plz..
choozi
Garter
Garter
 
Posts: 24
Joined: Sat Sep 26, 2009 7:14 pm

Postby JackBean » Sat Oct 10, 2009 12:16 pm

I would guess www.google.com or www.pubmed.com ;)

What about phosphate? Also the bases could have some chelating proparties, but not sure, about that
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5667
Joined: Mon Sep 14, 2009 7:12 pm

Postby kolean » Sun Oct 11, 2009 3:28 am

Chelation usually involves a metal ion (like Ca2+, Fe2+/3+, Mg2+, or even Cu2+), but there is no metal ions involved with DNA and its architecture. It uses pretty much proteins to build its architechure with nucleosomes composed of histones (H2A and H2B, H3, and H4) to form a beads on a string structure. And then the linker histone H1 to form a 30 nm fiber of coiled beads into a rope structure. From there, it can have chromatin modeling protein complexes to make it into heterchromatin (condensed and repressed transcriptionally) or euchromatin (maybe a loose scaffold of DNA and proteins for active transcription).
kolean
Coral
Coral
 
Posts: 345
Joined: Thu Jun 25, 2009 3:15 am



Return to Molecular Biology

Who is online

Users browsing this forum: No registered users and 0 guests

cron