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2v6c

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Revision as of 07:38, 24 July 2019

Crystal structure of ErbB3 binding protein 1 (Ebp1)

Structural highlights

2v6c is a 1 chain structure with sequence from Lk3 transgenic mice. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[PA2G4_MOUSE] May play a role in a ERBB3-regulated signal transduction pathway. Seems be involved in growth regulation. Acts a corepressor of the androgen receptor (AR) and is regulated by the ERBB3 ligand neuregulin-1/heregulin (HRG). Inhibits transcription of some E2F1-regulated promoters, probably by recruiting histone acetylase (HAT) activity. Binds RNA. Associates with 28S, 18S and 5.8S mature rRNAs, several rRNA precursors and probably U3 small nucleolar RNA. May be involved in regulation of intermediate and late steps of rRNA processing. May be involved in ribosome assembly (By similarity). Mediates cap-independent translation of specific viral IRESs (internal ribosomal entry site). Together with PTBP1 is required for the translation initiation on the foot-and-mouth disease virus (FMDV) IRES.^[1] ^[2]

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

The ErbB3-binding protein 1 (Ebp1) is an important regulator of transcription, affecting eukaryotic cell growth, proliferation, differentiation and survival. Ebp1 can also affect translation and cooperates with the polypyrimidine tract-binding protein (PTB) to stimulate the activity of the internal ribosome entry site (IRES) of foot-and-mouth disease virus (FMDV). We report here the crystal structure of murine Ebp1 (p48 isoform), providing the first glimpse of the architecture of this versatile regulator. The structure reveals a core domain that is homologous to methionine aminopeptidases, coupled to a C-terminal extension that contains important motifs for binding proteins and RNA. It sheds new light on the conformational differences between the p42 and p48 isoforms of Ebp1, the disposition of the key protein-interacting motif ((354)LKALL(358)) and the RNA-binding activity of Ebp1. We show that the primary RNA-binding site is formed by a Lys-rich motif in the C terminus and mediates the interaction with the FMDV IRES. We also demonstrate a specific functional requirement for Ebp1 in FMDV IRES-directed translation that is independent of a direct interaction with PTB.

Structural insights into the transcriptional and translational roles of Ebp1.,Monie TP, Perrin AJ, Birtley JR, Sweeney TR, Karakasiliotis I, Chaudhry Y, Roberts LO, Matthews S, Goodfellow IG, Curry S EMBO J. 2007 Sep 5;26(17):3936-44. Epub 2007 Aug 9. PMID:17690690^[3]

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

References

↑ Pilipenko EV, Pestova TV, Kolupaeva VG, Khitrina EV, Poperechnaya AN, Agol VI, Hellen CU. A cell cycle-dependent protein serves as a template-specific translation initiation factor. Genes Dev. 2000 Aug 15;14(16):2028-45. PMID:10950867
↑ Monie TP, Perrin AJ, Birtley JR, Sweeney TR, Karakasiliotis I, Chaudhry Y, Roberts LO, Matthews S, Goodfellow IG, Curry S. Structural insights into the transcriptional and translational roles of Ebp1. EMBO J. 2007 Sep 5;26(17):3936-44. Epub 2007 Aug 9. PMID:17690690
↑ Monie TP, Perrin AJ, Birtley JR, Sweeney TR, Karakasiliotis I, Chaudhry Y, Roberts LO, Matthews S, Goodfellow IG, Curry S. Structural insights into the transcriptional and translational roles of Ebp1. EMBO J. 2007 Sep 5;26(17):3936-44. Epub 2007 Aug 9. PMID:17690690

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/2v6c"

@@ Line 1: / Line 1: @@
 ==Crystal structure of ErbB3 binding protein 1 (Ebp1)==
-<StructureSection load='2v6c' size='340' side='right' caption='[[2v6c]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
+<StructureSection load='2v6c' size='340' side='right'caption='[[2v6c]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2v6c]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2V6C OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2V6C FirstGlance]. <br>
@@ Line 31: / Line 31: @@
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Lk3 transgenic mice]]
 [[Category: Birtley, J R]]

2v6c

From Proteopedia

Revision as of 07:38, 24 July 2019

Crystal structure of ErbB3 binding protein 1 (Ebp1)

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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