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.

1j2o

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 07:12, 10 February 2016

Structure of FLIN2, a complex containing the N-terminal LIM domain of LMO2 and ldb1-LID

Structural highlights

1j2o is a 1 chain structure with sequence from Lk3 transgenic mice. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1m3v
Gene:	LMO2, Ldb1 (LK3 transgenic mice)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[RBTN2_MOUSE] Acts with TAL1/SCL to regulate red blood cell development. Also acts with LDB1 to maintain erythroid precursors in an immature state.^[1]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

LMO2 and LMO4 are members of a small family of nuclear transcriptional regulators that are important for both normal development and disease processes. LMO2 is essential for hemopoiesis and angiogenesis, and inappropriate overexpression of this protein leads to T-cell leukemias. LMO4 is developmentally regulated in the mammary gland and has been implicated in breast oncogenesis. Both proteins comprise two tandemly repeated LIM domains. LMO2 and LMO4 interact with the ubiquitous nuclear adaptor protein ldb1/NLI/CLIM2, which associates with the LIM domains of LMO and LIM homeodomain proteins via its LIM interaction domain (ldb1-LID). We report the solution structures of two LMO:ldb1 complexes (PDB: 1M3V and 1J2O) and show that ldb1-LID binds to the N-terminal LIM domain (LIM1) of LMO2 and LMO4 in an extended conformation, contributing a third strand to a beta-hairpin in LIM1 domains. These findings constitute the first molecular definition of LIM-mediated protein-protein interactions and suggest a mechanism by which ldb1 can bind a variety of LIM domains that share low sequence homology.

Structural basis for the recognition of ldb1 by the N-terminal LIM domains of LMO2 and LMO4.,Deane JE, Mackay JP, Kwan AH, Sum EY, Visvader JE, Matthews JM EMBO J. 2003 May 1;22(9):2224-33. PMID:12727888^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Visvader JE, Mao X, Fujiwara Y, Hahm K, Orkin SH. The LIM-domain binding protein Ldb1 and its partner LMO2 act as negative regulators of erythroid differentiation. Proc Natl Acad Sci U S A. 1997 Dec 9;94(25):13707-12. PMID:9391090
↑ Deane JE, Mackay JP, Kwan AH, Sum EY, Visvader JE, Matthews JM. Structural basis for the recognition of ldb1 by the N-terminal LIM domains of LMO2 and LMO4. EMBO J. 2003 May 1;22(9):2224-33. PMID:12727888 doi:10.1093/emboj/cdg196

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1j2o"

@@ Line 18: / Line 18: @@
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
-</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1j2o ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">

1j2o

From Proteopedia

Revision as of 07:12, 10 February 2016

Structure of FLIN2, a complex containing the N-terminal LIM domain of LMO2 and ldb1-LID

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox