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1h59

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Revision as of 08:52, 23 October 2019

Complex of IGFBP-5 with IGF-I

Structural highlights

1h59 is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	2gf1, 3gf1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[IGF1_HUMAN] Defects in IGF1 are the cause of insulin-like growth factor I deficiency (IGF1 deficiency) [MIM:608747]. IGF1 deficiency is an autosomal recessive disorder characterized by growth retardation, sensorineural deafness and mental retardation.

Function

[IGF1_HUMAN] The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting activity. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts. Stimulates glucose transport in rat bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only regarding glycogen and DNA synthesis but also with regard to enhancing glucose uptake.^[1] [IBP5_HUMAN] IGF-binding proteins prolong the half-life of the IGFs and have been shown to either inhibit or stimulate the growth promoting effects of the IGFs on cell culture. They alter the interaction of IGFs with their cell surface receptors.

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

Insulin-like growth factors (IGFs) are key regulators of cell proliferation, differentiation and transformation, and are thus pivotal in cancer, especially breast, prostate and colon neoplasms. They are also important in many neurological and bone disorders. Their potent mitogenic and anti-apoptotic actions depend primarily on their availability to bind to the cell surface IGF-I receptor. In circulation and interstitial fluids, IGFs are largely unavailable as they are tightly associated with IGF-binding proteins (IGFBPs) and are released after IGFBP proteolysis. Here we report the 2.1 A crystal structure of the complex of IGF-I bound to the N-terminal IGF-binding domain of IGFBP-5 (mini-IGFBP-5), a prototype interaction for all N-terminal domains of the IGFBP family. The principal interactions in the complex comprise interlaced hydrophobic side chains that protrude from both IGF-I and the IGFBP-5 fragment and a surrounding network of polar interactions. A solvent-exposed hydrophobic patch is located on the IGF-I pole opposite to the mini-IGFBP-5 binding region and marks the IGF-I receptor binding site.

The interaction of insulin-like growth factor-I with the N-terminal domain of IGFBP-5.,Zeslawski W, Beisel HG, Kamionka M, Kalus W, Engh RA, Huber R, Lang K, Holak TA EMBO J. 2001 Jul 16;20(14):3638-44. PMID:11447105^[2]

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

References

↑ Zoidis E, Ghirlanda-Keller C, Schmid C. Stimulation of glucose transport in osteoblastic cells by parathyroid hormone and insulin-like growth factor I. Mol Cell Biochem. 2011 Feb;348(1-2):33-42. doi: 10.1007/s11010-010-0634-z. Epub, 2010 Nov 13. PMID:21076856 doi:10.1007/s11010-010-0634-z
↑ Zeslawski W, Beisel HG, Kamionka M, Kalus W, Engh RA, Huber R, Lang K, Holak TA. The interaction of insulin-like growth factor-I with the N-terminal domain of IGFBP-5. EMBO J. 2001 Jul 16;20(14):3638-44. PMID:11447105 doi:10.1093/emboj/20.14.3638

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/1h59"

@@ Line 1: / Line 1: @@
 ==Complex of IGFBP-5 with IGF-I==
-<StructureSection load='1h59' size='340' side='right' caption='[[1h59]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
+<StructureSection load='1h59' size='340' side='right'caption='[[1h59]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1h59]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1H59 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1H59 FirstGlance]. <br>
@@ Line 30: / Line 30: @@
 </div>
 <div class="pdbe-citations 1h59" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Insulin-like growth factor|Insulin-like growth factor]]
+*[[Insulin-like growth factor binding protein 3D structures|Insulin-like growth factor binding protein 3D structures]]
 == References ==
 <references/>
@@ Line 35: / Line 39: @@
 </StructureSection>
 [[Category: Homo sapiens]]
+[[Category: Large Structures]]
 [[Category: Beisel, H G]]
 [[Category: Engh, R A]]

1h59

From Proteopedia

Revision as of 08:52, 23 October 2019

Complex of IGFBP-5 with IGF-I

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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