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1igl

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Revision as of 09:36, 2 January 2015

SOLUTION STRUCTURE OF HUMAN INSULIN-LIKE GROWTH FACTOR II RELATIONSHIP TO RECEPTOR AND BINDING PROTEIN INTERACTIONS

Structural highlights

1igl is a 1 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, RCSB, PDBsum

Disease

[IGF2_HUMAN] Epigenetic changes of DNA hypomethylation in IGF2 are a cause of Silver-Russell syndrome (SRS) [MIM:180860]. A clinically heterogeneous condition characterized by severe intrauterine growth retardation, poor postnatal growth, craniofacial features such as a triangular shaped face and a broad forehead, body asymmetry, and a variety of minor malformations. The phenotypic expression changes during childhood and adolescence, with the facial features and asymmetry usually becoming more subtle with age.^[1]

Function

[IGF2_HUMAN] The insulin-like growth factors possess growth-promoting activity. In vitro, they are potent mitogens for cultured cells. IGF-II is influenced by placental lactogen and may play a role in fetal development.^[2] Preptin undergoes glucose-mediated co-secretion with insulin, and acts as physiological amplifier of glucose-mediated insulin secretion. Exhibits osteogenic properties by increasing osteoblast mitogenic activity through phosphoactivation of MAPK1 and MAPK3.^[3]

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 three-dimensional structure of human insulin-like growth factor (IGF) II in aqueous solution at pH 3.1 and 300 K has been determined from nuclear magnetic resonance data and restrained molecular dynamics calculations. Structural constraints consisting of 502 NOE-derived distance constraints, 11 dihedral angle restraints, and three disulfide bridges were used as input for distance geometry calculations in DIANA and X-PLOR, followed by simulated annealing refinement and energy minimization in X-PLOR. The resulting family of 20 structures was well defined in the regions of residues 5 to 28 and 41 to 62, with an average pairwise root-mean-square deviation of 1.24 A for the backbone heavy-atoms (N, C2, C) and 1.90 A for all heavy atoms. The poorly defined regions consist of the N and C termini, part of the B-domain, and the C-domain loop. Resonances from these regions of the protein gave stronger cross peaks in two dimensional NMR spectra, consistent with significant motional averaging. The main secondary structure elements in IGF-II are alpha-helices encompassing residues 11 to 21, 42 to 49 and 53 to 59. A small anti-parallel beta-sheet is formed by residues 59 to 61 and 25 to 27, while residues 26 to 28 appear to participate in intermolecular beta-sheet formation. The structure of IGF-II in the well-defined regions is very similar to those of the corresponding regions of insulin and IGF-I. Significant differences between IGF-II and IGF-I occur near the start of the third helix, in a region known to modulate affinity for the type 2 IGF receptor, and at the C terminus. The IGF II structure is discussed in relation to its binding sites for the insulin and IGF receptors and the IGF binding proteins.

Solution structure of human insulin-like growth factor II. Relationship to receptor and binding protein interactions.,Torres AM, Forbes BE, Aplin SE, Wallace JC, Francis GL, Norton RS J Mol Biol. 1995 Apr 28;248(2):385-401. PMID:7739048^[4]

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

References

↑ Bartholdi D, Krajewska-Walasek M, Ounap K, Gaspar H, Chrzanowska KH, Ilyana H, Kayserili H, Lurie IW, Schinzel A, Baumer A. Epigenetic mutations of the imprinted IGF2-H19 domain in Silver-Russell syndrome (SRS): results from a large cohort of patients with SRS and SRS-like phenotypes. J Med Genet. 2009 Mar;46(3):192-7. doi: 10.1136/jmg.2008.061820. Epub 2008 Dec 9. PMID:19066168 doi:10.1136/jmg.2008.061820
↑ Cornish J, Callon KE, Bava U, Watson M, Xu X, Lin JM, Chan VA, Grey AB, Naot D, Buchanan CM, Cooper GJ, Reid IR. Preptin, another peptide product of the pancreatic beta-cell, is osteogenic in vitro and in vivo. Am J Physiol Endocrinol Metab. 2007 Jan;292(1):E117-22. Epub 2006 Aug 15. PMID:16912056 doi:10.1152/ajpendo.00642.2005
↑ Cornish J, Callon KE, Bava U, Watson M, Xu X, Lin JM, Chan VA, Grey AB, Naot D, Buchanan CM, Cooper GJ, Reid IR. Preptin, another peptide product of the pancreatic beta-cell, is osteogenic in vitro and in vivo. Am J Physiol Endocrinol Metab. 2007 Jan;292(1):E117-22. Epub 2006 Aug 15. PMID:16912056 doi:10.1152/ajpendo.00642.2005
↑ Torres AM, Forbes BE, Aplin SE, Wallace JC, Francis GL, Norton RS. Solution structure of human insulin-like growth factor II. Relationship to receptor and binding protein interactions. J Mol Biol. 1995 Apr 28;248(2):385-401. PMID:7739048

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1igl]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IGL OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1IGL FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1igl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1igl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1igl RCSB], [http://www.ebi.ac.uk/pdbsum/1igl PDBsum]</span></td></tr>
+</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1igl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1igl OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1igl RCSB], [http://www.ebi.ac.uk/pdbsum/1igl PDBsum]</span></td></tr>
-<table>
+</table>
 == Disease ==
 [[http://www.uniprot.org/uniprot/IGF2_HUMAN IGF2_HUMAN]] Epigenetic changes of DNA hypomethylation in IGF2 are a cause of Silver-Russell syndrome (SRS) [MIM:[http://omim.org/entry/180860 180860]]. A clinically heterogeneous condition characterized by severe intrauterine growth retardation, poor postnatal growth, craniofacial features such as a triangular shaped face and a broad forehead, body asymmetry, and a variety of minor malformations. The phenotypic expression changes during childhood and adolescence, with the facial features and asymmetry usually becoming more subtle with age.<ref>PMID:19066168</ref>
@@ Line 35: / Line 35: @@
 </StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Aplin, S E.]]
+[[Category: Aplin, S E]]
-[[Category: Forbes, B E.]]
+[[Category: Forbes, B E]]
-[[Category: Francis, G L.]]
+[[Category: Francis, G L]]
-[[Category: Norton, R S.]]
+[[Category: Norton, R S]]
-[[Category: Torres, A M.]]
+[[Category: Torres, A M]]
-[[Category: Wallace, J C.]]
+[[Category: Wallace, J C]]
 [[Category: Growth factor]]

1igl

From Proteopedia

Revision as of 09:36, 2 January 2015

SOLUTION STRUCTURE OF HUMAN INSULIN-LIKE GROWTH FACTOR II RELATIONSHIP TO RECEPTOR AND BINDING PROTEIN INTERACTIONS

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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