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.


2ifb

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (09:02, 21 February 2024) (edit) (undo)
 
(11 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:2ifb.jpg|left|200px]]
 
-
{{Structure
+
==CRYSTAL STRUCTURE OF RAT INTESTINAL FATTY-ACID-BINDING PROTEIN. REFINEMENT AND ANALYSIS OF THE ESCHERICHIA COLI-DRIVED PROTEIN WITH BOUND PALMITATE==
-
|PDB= 2ifb |SIZE=350|CAPTION= <scene name='initialview01'>2ifb</scene>, resolution 2.0&Aring;
+
<StructureSection load='2ifb' size='340' side='right'caption='[[2ifb]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
-
|SITE=
+
== Structural highlights ==
-
|LIGAND= <scene name='pdbligand=PLM:PALMITIC+ACID'>PLM</scene>
+
<table><tr><td colspan='2'>[[2ifb]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IFB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2IFB FirstGlance]. <br>
-
|ACTIVITY=
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
-
|GENE=
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PLM:PALMITIC+ACID'>PLM</scene></td></tr>
-
|DOMAIN=
+
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ifb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ifb OCA], [https://pdbe.org/2ifb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ifb RCSB], [https://www.ebi.ac.uk/pdbsum/2ifb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ifb ProSAT]</span></td></tr>
-
|RELATEDENTRY=
+
</table>
-
|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ifb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ifb OCA], [http://www.ebi.ac.uk/pdbsum/2ifb PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2ifb RCSB]</span>
+
== Function ==
-
}}
+
[https://www.uniprot.org/uniprot/FABPI_RAT FABPI_RAT] FABP are thought to play a role in the intracellular transport of long-chain fatty acids and their acyl-CoA esters. FABP2 is probably involved in triglyceride-rich lipoprotein synthesis. Binds saturated long-chain fatty acids with a high affinity, but binds with a lower affinity to unsaturated long-chain fatty acids. FABP2 may also help maintain energy homeostasis by functioning as a lipid sensor (By similarity).
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/if/2ifb_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 +
<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/main_output.php?pdb_ID=2ifb ConSurf].
 +
<div style="clear:both"></div>
-
'''CRYSTAL STRUCTURE OF RAT INTESTINAL FATTY-ACID-BINDING PROTEIN. REFINEMENT AND ANALYSIS OF THE ESCHERICHIA COLI-DRIVED PROTEIN WITH BOUND PALMITATE'''
+
==See Also==
-
 
+
*[[Fatty acid-binding protein 3D structures|Fatty acid-binding protein 3D structures]]
-
 
+
__TOC__
-
==Overview==
+
</StructureSection>
-
Rat intestinal fatty-acid-binding protein (I-FABP) is a small (15,124 Mr) cytoplasmic polypeptide that binds long-chain fatty acids in a non-covalent fashion. I-FABP is a member of a family of intracellular binding proteins that are thought to participate in the uptake, transport and/or metabolic targeting of hydrophobic ligands. The crystal structure of Escherichia coli-derived rat I-FABP with a single molecule of bound palmitate has been refined to 2 A resolution using a combination of least-squares methods, energy refinement and molecular dynamics. The combined methods resulted in a model with a crystallographic R-factor of 17.8% (7775 reflections, sigma greater than 2.0), root-mean-square bond length deviation of 0.009 A and root-mean-square bond angle deviation of 2.85 degrees. I-FABP contains ten antiparallel beta-strands organized into two approximately orthogonal, beta-sheets. The hydrocarbon tail of its single C16:0 ligand is present in a well-ordered, distinctively bent conformation. The carboxylate group of the fatty acid is located in the interior of I-FABP and forms a unique "quintet" of electrostatic interactions involving Arg106; Gln 115, and two solvent molecules. The hydrocarbon tail is bent with a slight left-handed helical twist from the carboxylate group to C-16. The bent methylene chain resides in a "cradle" formed by the side-chains of hydrophobic, mainly aromatic, amino acid residues. The refined molecular model of holo-I-FABP suggests several potential locations for entry and exiting of the fatty acid.
+
[[Category: Large Structures]]
-
 
+
-
==About this Structure==
+
-
2IFB is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2IFB OCA].
+
-
 
+
-
==Reference==
+
-
Crystal structure of rat intestinal fatty-acid-binding protein. Refinement and analysis of the Escherichia coli-derived protein with bound palmitate., Sacchettini JC, Gordon JI, Banaszak LJ, J Mol Biol. 1989 Jul 20;208(2):327-39. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/2671390 2671390]
+
[[Category: Rattus norvegicus]]
[[Category: Rattus norvegicus]]
-
[[Category: Single protein]]
+
[[Category: Banaszak LJ]]
-
[[Category: Banaszak, L J.]]
+
[[Category: Gordon JI]]
-
[[Category: Gordon, J I.]]
+
[[Category: Sacchettini JC]]
-
[[Category: Sacchettini, J C.]]
+
-
[[Category: fatty acid-binding protein]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:43:34 2008''
+

Current revision

CRYSTAL STRUCTURE OF RAT INTESTINAL FATTY-ACID-BINDING PROTEIN. REFINEMENT AND ANALYSIS OF THE ESCHERICHIA COLI-DRIVED PROTEIN WITH BOUND PALMITATE

PDB ID 2ifb

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

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