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1n4q

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Revision as of 07:05, 7 August 2019

Protein Geranylgeranyltransferase type-I Complexed with a GGPP Analog and a KKKSKTKCVIL Peptide

Structural highlights

1n4q is a 18 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	1d8d, 1fpp, 1ft1, 1kzo, 1kzp, 1qbq, 1dce, 1n4p, 1n4r, 1n4s
Activity:	Protein geranylgeranyltransferase type I, with EC number 2.5.1.59
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[FNTA_RAT] Catalyzes the transfer of a farnesyl or geranyl-geranyl moiety from farnesyl or geranyl-geranyl pyrophosphate to a cysteine at the fourth position from the C-terminus of several proteins having the C-terminal sequence Cys-aliphatic-aliphatic-X. The alpha subunit is thought to participate in a stable complex with the substrate. The beta subunit binds the peptide substrate. Through RAC1 prenylation and activation may positively regulate neuromuscular junction development downstream of MUSK (By similarity). [PGTB1_RAT] Catalyzes the transfer of a geranyl-geranyl moiety from geranyl-geranyl pyrophosphate to a cysteine at the fourth position from the C-terminus of proteins having the C-terminal sequence Cys-aliphatic-aliphatic-X. Acts on the Rac1, Rac2, Rap1A and Rap1B proteins. The beta subunit is responsible for peptide-binding.

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

Protein geranylgeranyltransferase type-I (GGTase-I), one of two CaaX prenyltransferases, is an essential enzyme in eukaryotes. GGTase-I catalyzes C-terminal lipidation of >100 proteins, including many GTP- binding regulatory proteins. We present the first structural information for mammalian GGTase-I, including a series of substrate and product complexes that delineate the path of the chemical reaction. These structures reveal that all protein prenyltransferases share a common reaction mechanism and identify specific residues that play a dominant role in determining prenyl group specificity. This hypothesis was confirmed by converting farnesyltransferase (15-C prenyl substrate) into GGTase-I (20-C prenyl substrate) with a single point mutation. GGTase-I discriminates against farnesyl diphosphate (FPP) at the product turnover step through the inability of a 15-C FPP to displace the 20-C prenyl-peptide product. Understanding these key features of specificity is expected to contribute to optimization of anti-cancer and anti-parasite drugs.

Structure of mammalian protein geranylgeranyltransferase type-I.,Taylor JS, Reid TS, Terry KL, Casey PJ, Beese LS EMBO J. 2003 Nov 17;22(22):5963-74. PMID:14609943^[1]

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

References

↑ Taylor JS, Reid TS, Terry KL, Casey PJ, Beese LS. Structure of mammalian protein geranylgeranyltransferase type-I. EMBO J. 2003 Nov 17;22(22):5963-74. PMID:14609943 doi:http://dx.doi.org/10.1093/emboj/cdg571

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1n4q"

@@ Line 1: / Line 1: @@
 ==Protein Geranylgeranyltransferase type-I Complexed with a GGPP Analog and a KKKSKTKCVIL Peptide==
-<StructureSection load='1n4q' size='340' side='right' caption='[[1n4q]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
+<StructureSection load='1n4q' size='340' side='right'caption='[[1n4q]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1n4q]] is a 18 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N4Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1N4Q FirstGlance]. <br>
@@ Line 15: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n4/1n4q_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n4/1n4q_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 30: / Line 30: @@
 </div>
 <div class="pdbe-citations 1n4q" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Geranylgeranyl transferase 3D structures|Geranylgeranyl transferase 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Protein geranylgeranyltransferase type I]]
 [[Category: Beese, L S]]

1n4q

From Proteopedia

Revision as of 07:05, 7 August 2019

Protein Geranylgeranyltransferase type-I Complexed with a GGPP Analog and a KKKSKTKCVIL Peptide

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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