This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


2hin

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 1: Line 1:
-
[[Image:2hin.gif|left|200px]]
+
{{Seed}}
 +
[[Image:2hin.png|left|200px]]
<!--
<!--
Line 9: Line 10:
{{STRUCTURE_2hin| PDB=2hin | SCENE= }}
{{STRUCTURE_2hin| PDB=2hin | SCENE= }}
-
'''Structure of N15 Cro at 1.05 A: an ortholog of lambda Cro with a completely different but equally effective dimerization mechanism'''
+
===Structure of N15 Cro at 1.05 A: an ortholog of lambda Cro with a completely different but equally effective dimerization mechanism===
-
==Overview==
+
<!--
-
Bacteriophage Cro proteins bind to target DNA as dimers but do not all dimerize with equal strength, and differ in fold in the region of the dimer interface. We report the structure of the Cro protein from Enterobacteria phage N15 at 1.05 A resolution. The subunit fold contains five alpha-helices and is closely similar to the structure of P22 Cro (1.3 A backbone room mean square difference over 52 residues), but quite different from that of lambda Cro, a structurally diverged member of this family with a mixed alpha-helix/beta-sheet fold. N15 Cro crystallizes as a biological dimer with an extensive interface (1303 A(2) change in accessible surface area per dimer) and also dimerizes in solution with a K(d) of 5.1 +/- 1.5 microM. Its dimerization is much stronger than that of its structural homolog P22 Cro, which does not self-associate detectably in solution. Instead, the level of self-association and interfacial area for N15 Cro is similar to that of lambda Cro, even though these two orthologs do not share the same fold and have dimer interfaces that are qualitatively different in structure. The common Cro ancestor is thought to be an all-helical monomer similar to P22 Cro. We propose that two Cro descendants independently developed stronger dimerization by entirely different mechanisms.
+
The line below this paragraph, {{ABSTRACT_PUBMED_18369196}}, adds the Publication Abstract to the page
 +
(as it appears on PubMed at http://www.pubmed.gov), where 18369196 is the PubMed ID number.
 +
-->
 +
{{ABSTRACT_PUBMED_18369196}}
==About this Structure==
==About this Structure==
Line 31: Line 35:
[[Category: Helix-turn-helix]]
[[Category: Helix-turn-helix]]
[[Category: Transcription factor]]
[[Category: Transcription factor]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu May 22 22:24:33 2008''
+
 
 +
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 23:54:20 2008''

Revision as of 20:54, 28 July 2008

Image:2hin.png

Template:STRUCTURE 2hin

Structure of N15 Cro at 1.05 A: an ortholog of lambda Cro with a completely different but equally effective dimerization mechanism

Template:ABSTRACT PUBMED 18369196

About this Structure

2HIN is a Single protein structure of sequence from Enterobacteria phage n15. Full crystallographic information is available from OCA.

Reference

N15 Cro and lambda Cro: orthologous DNA-binding domains with completely different but equally effective homodimer interfaces., Dubrava MS, Ingram WM, Roberts SA, Weichsel A, Montfort WR, Cordes MH, Protein Sci. 2008 May;17(5):803-12. Epub 2008 Mar 27. PMID:18369196

Page seeded by OCA on Mon Jul 28 23:54:20 2008

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2hin"
Personal tools