9gbj
From Proteopedia
(Difference between revisions)
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| - | '''Unreleased structure''' | ||
| - | The entry | + | ==KRAS G12D in complex with covalent inhibitor== |
| + | <StructureSection load='9gbj' size='340' side='right'caption='[[9gbj]], [[Resolution|resolution]] 1.71Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[9gbj]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9GBJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9GBJ FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.712Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A1IJ7:1-[(3~{S})-1-[2-[5-[(4~{S})-2-azanyl-3-cyano-4-methyl-6,7-dihydro-5~{H}-1-benzothiophen-4-yl]-1,2,4-oxadiazol-3-yl]-6-[(1~{S})-1-[(2~{S})-1-methylpyrrolidin-2-yl]ethoxy]pyrimidin-4-yl]pyrrolidin-3-yl]-3-[1-(methoxymethyl)cyclopropyl]urea'>A1IJ7</scene>, <scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=9gbj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9gbj OCA], [https://pdbe.org/9gbj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9gbj RCSB], [https://www.ebi.ac.uk/pdbsum/9gbj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9gbj ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Disease == | ||
| + | [https://www.uniprot.org/uniprot/RASK_HUMAN RASK_HUMAN] Defects in KRAS are a cause of acute myelogenous leukemia (AML) [MIM:[https://omim.org/entry/601626 601626]. AML is a malignant disease in which hematopoietic precursors are arrested in an early stage of development.<ref>PMID:8955068</ref> Defects in KRAS are a cause of juvenile myelomonocytic leukemia (JMML) [MIM:[https://omim.org/entry/607785 607785]. JMML is a pediatric myelodysplastic syndrome that constitutes approximately 30% of childhood cases of myelodysplastic syndrome (MDS) and 2% of leukemia. It is characterized by leukocytosis with tissue infiltration and in vitro hypersensitivity of myeloid progenitors to granulocyte-macrophage colony stimulating factor. Defects in KRAS are the cause of Noonan syndrome type 3 (NS3) [MIM:[https://omim.org/entry/609942 609942]. Noonan syndrome (NS) [MIM:[https://omim.org/entry/163950 163950] is a disorder characterized by dysmorphic facial features, short stature, hypertelorism, cardiac anomalies, deafness, motor delay, and a bleeding diathesis. It is a genetically heterogeneous and relatively common syndrome, with an estimated incidence of 1 in 1000-2500 live births. Rarely, NS is associated with juvenile myelomonocytic leukemia (JMML). NS3 inheritance is autosomal dominant.<ref>PMID:16773572</ref> <ref>PMID:16474405</ref> <ref>PMID:17468812</ref> <ref>PMID:17056636</ref> <ref>PMID:19396835</ref> <ref>PMID:20949621</ref> Defects in KRAS are a cause of gastric cancer (GASC) [MIM:[https://omim.org/entry/613659 613659]; also called gastric cancer intestinal or stomach cancer. Gastric cancer is a malignant disease which starts in the stomach, can spread to the esophagus or the small intestine, and can extend through the stomach wall to nearby lymph nodes and organs. It also can metastasize to other parts of the body. The term gastric cancer or gastric carcinoma refers to adenocarcinoma of the stomach that accounts for most of all gastric malignant tumors. Two main histologic types are recognized, diffuse type and intestinal type carcinomas. Diffuse tumors are poorly differentiated infiltrating lesions, resulting in thickening of the stomach. In contrast, intestinal tumors are usually exophytic, often ulcerating, and associated with intestinal metaplasia of the stomach, most often observed in sporadic disease.<ref>PMID:3034404</ref> <ref>PMID:7773929</ref> <ref>PMID:14534542</ref> Note=Defects in KRAS are a cause of pylocytic astrocytoma (PA). Pylocytic astrocytomas are neoplasms of the brain and spinal cord derived from glial cells which vary from histologically benign forms to highly anaplastic and malignant tumors.<ref>PMID:8439212</ref> Defects in KRAS are a cause of cardiofaciocutaneous syndrome (CFC syndrome) [MIM:[https://omim.org/entry/115150 115150]; also known as cardio-facio-cutaneous syndrome. CFC syndrome is characterized by a distinctive facial appearance, heart defects and mental retardation. Heart defects include pulmonic stenosis, atrial septal defects and hypertrophic cardiomyopathy. Some affected individuals present with ectodermal abnormalities such as sparse, friable hair, hyperkeratotic skin lesions and a generalized ichthyosis-like condition. Typical facial features are similar to Noonan syndrome. They include high forehead with bitemporal constriction, hypoplastic supraorbital ridges, downslanting palpebral fissures, a depressed nasal bridge, and posteriorly angulated ears with prominent helices. The inheritance of CFC syndrome is autosomal dominant. Note=KRAS mutations are involved in cancer development. | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/RASK_HUMAN RASK_HUMAN] Ras proteins bind GDP/GTP and possess intrinsic GTPase activity. | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Targeted covalent inhibitors are known to be successful therapeutics used in various indications. Covalent drugs typically target cysteine, as cysteine is well suited due to its high nucleophilicity. However, its low abundance in protein binding sites represents a major limitation. As a result, there is a need to covalently target additional nucleophilic amino acids. Recent literature has reported covalent inhibitors labeling aspartic acid in KRAS(G12D). However, these compounds also covalently bind to KRAS(G12C), indicating their cross-reactivity to cysteine along with aspartic acid. We report here carbodiimides as a novel reactive group to selectively target aspartic acid. Covalent inhibitors bearing a carbodiimide moiety are shown to covalently label KRAS(G12D) in biochemical and cellular assays. A high-resolution X-ray crystal structure was obtained, which illustrates the mechanism of the covalent bond formation with KRAS(G12D). Carbodiimide warheads show selectivity toward KRAS(G12D) over other KRAS alleles and represent a new covalent warhead suitable for covalently binding to aspartic acid in a biochemical and cellular context. | ||
| - | + | Discovery of Carbodiimide Warheads to Selectively and Covalently Target Aspartic Acid in KRAS(G12D).,Sirocchi LS, Scharnweber M, Oberndorfer S, Siszler G, Zak KM, Rumpel K, Neumuller RA, Wilding B J Am Chem Soc. 2025 Apr 23. doi: 10.1021/jacs.5c03562. PMID:40267480<ref>PMID:40267480</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 9gbj" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Sirocchi LS]] | ||
| + | [[Category: Wilding B]] | ||
| + | [[Category: Zak KM]] | ||
Current revision
KRAS G12D in complex with covalent inhibitor
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