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{{STRUCTURE_4ivb|  PDB=4ivb  |  SCENE=  }}
==JAK1 kinase (JH1 domain) in complex with the inhibitor TRANS-4-{2-[(1R)-1-HYDROXYETHYL]IMIDAZO[4,5-D]PYRROLO[2,3-B]PYRIDIN-1(6H)-YL}CYCLOHEXANECARBONITRILE==
===JAK1 kinase (JH1 domain) in complex with the inhibitor TRANS-4-{2-[(1R)-1-HYDROXYETHYL]IMIDAZO[4,5-D]PYRROLO[2,3-B]PYRIDIN-1(6H)-YL}CYCLOHEXANECARBONITRILE===
<StructureSection load='4ivb' size='340' side='right' caption='[[4ivb]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
{{ABSTRACT_PUBMED_23659214}}
== Structural highlights ==
<table><tr><td colspan='2'>[[4ivb]] 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=4IVB OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4IVB FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=1J5:TRANS-4-{2-[(1R)-1-HYDROXYETHYL]IMIDAZO[4,5-D]PYRROLO[2,3-B]PYRIDIN-1(6H)-YL}CYCLOHEXANECARBONITRILE'>1J5</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4iva|4iva]], [[4ivc|4ivc]], [[4ivd|4ivd]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">JAK1, JAK1A, JAK1B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_protein-tyrosine_kinase Non-specific protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.2 2.7.10.2] </span></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=4ivb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ivb OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4ivb RCSB], [http://www.ebi.ac.uk/pdbsum/4ivb PDBsum]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/JAK1_HUMAN JAK1_HUMAN]] Tyrosine kinase of the non-receptor type, involved in the IFN-alpha/beta/gamma signal pathway. Kinase partner for the interleukin (IL)-2 receptor.
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Herein we report on the structure-based discovery of a C-2 hydroxyethyl moiety which provided consistently high levels of selectivity for JAK1 over JAK2 to the imidazopyrrolopyridine series of JAK1 inhibitors. X-ray structures of a C-2 hydroxyethyl analogue in complex with both JAK1 and JAK2 revealed differential ligand/protein interactions between the two isoforms and offered an explanation for the observed selectivity. Analysis of historical data from related molecules was used to develop a set of physicochemical compound design parameters to impart desirable properties such as acceptable membrane permeability, potent whole blood activity, and a high degree of metabolic stability. This work culminated in the identification of a highly JAK1 selective compound (31) exhibiting favorable oral bioavailability across a range of preclinical species and robust efficacy in a rat CIA model.


==Function==
Identification of C-2 Hydroxyethyl Imidazopyrrolopyridines as Potent JAK1 Inhibitors with Favorable Physicochemical Properties and High Selectivity over JAK2.,Zak M, Hurley CA, Ward SI, Bergeron P, Barrett K, Balazs M, Blair WS, Bull R, Chakravarty P, Chang C, Crackett P, Deshmukh G, Devoss J, Dragovich PS, Eigenbrot C, Ellwood C, Gaines S, Ghilardi N, Gibbons P, Gradl S, Gribling P, Hamman C, Harstad E, Hewitt P, Johnson A, Johnson T, Kenny JR, Koehler MF, Bir Kohli P, Labadie S, Lee WP, Liao J, Liimatta M, Mendonca R, Narukulla R, Pulk R, Reeve A, Savage S, Shia S, Steffek M, Ubhayakar S, van Abbema A, Aliagas I, Avitabile-Woo B, Xiao Y, Yang J, Kulagowski JJ J Med Chem. 2013 Jun 13;56(11):4764-85. doi: 10.1021/jm4004895. Epub 2013 May 31. PMID:23659214<ref>PMID:23659214</ref>
[[http://www.uniprot.org/uniprot/JAK1_HUMAN JAK1_HUMAN]] Tyrosine kinase of the non-receptor type, involved in the IFN-alpha/beta/gamma signal pathway. Kinase partner for the interleukin (IL)-2 receptor.  


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[4ivb]] 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=4IVB OCA].
</div>


==Reference==
==See Also==
<ref group="xtra">PMID:023659214</ref><references group="xtra"/><references/>
*[[Janus kinase|Janus kinase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Non-specific protein-tyrosine kinase]]
[[Category: Non-specific protein-tyrosine kinase]]
[[Category: Eigenbrot, C.]]
[[Category: Eigenbrot, C]]
[[Category: Steffek, M.]]
[[Category: Steffek, M]]
[[Category: Phosphotransfer]]
[[Category: Phosphotransfer]]
[[Category: Protein kinase]]
[[Category: Protein kinase]]
[[Category: Transferase-transferase inhibitor complex]]
[[Category: Transferase-transferase inhibitor complex]]

Revision as of 16:46, 24 December 2014

JAK1 kinase (JH1 domain) in complex with the inhibitor TRANS-4-{2-[(1R)-1-HYDROXYETHYL]IMIDAZO[4,5-D]PYRROLO[2,3-B]PYRIDIN-1(6H)-YL}CYCLOHEXANECARBONITRILE

Structural highlights

4ivb 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.
Ligands:
NonStd Res:
Gene:JAK1, JAK1A, JAK1B (Homo sapiens)
Activity:Non-specific protein-tyrosine kinase, with EC number 2.7.10.2
Resources:FirstGlance, OCA, RCSB, PDBsum

Function

[JAK1_HUMAN] Tyrosine kinase of the non-receptor type, involved in the IFN-alpha/beta/gamma signal pathway. Kinase partner for the interleukin (IL)-2 receptor.

Publication Abstract from PubMed

Herein we report on the structure-based discovery of a C-2 hydroxyethyl moiety which provided consistently high levels of selectivity for JAK1 over JAK2 to the imidazopyrrolopyridine series of JAK1 inhibitors. X-ray structures of a C-2 hydroxyethyl analogue in complex with both JAK1 and JAK2 revealed differential ligand/protein interactions between the two isoforms and offered an explanation for the observed selectivity. Analysis of historical data from related molecules was used to develop a set of physicochemical compound design parameters to impart desirable properties such as acceptable membrane permeability, potent whole blood activity, and a high degree of metabolic stability. This work culminated in the identification of a highly JAK1 selective compound (31) exhibiting favorable oral bioavailability across a range of preclinical species and robust efficacy in a rat CIA model.

Identification of C-2 Hydroxyethyl Imidazopyrrolopyridines as Potent JAK1 Inhibitors with Favorable Physicochemical Properties and High Selectivity over JAK2.,Zak M, Hurley CA, Ward SI, Bergeron P, Barrett K, Balazs M, Blair WS, Bull R, Chakravarty P, Chang C, Crackett P, Deshmukh G, Devoss J, Dragovich PS, Eigenbrot C, Ellwood C, Gaines S, Ghilardi N, Gibbons P, Gradl S, Gribling P, Hamman C, Harstad E, Hewitt P, Johnson A, Johnson T, Kenny JR, Koehler MF, Bir Kohli P, Labadie S, Lee WP, Liao J, Liimatta M, Mendonca R, Narukulla R, Pulk R, Reeve A, Savage S, Shia S, Steffek M, Ubhayakar S, van Abbema A, Aliagas I, Avitabile-Woo B, Xiao Y, Yang J, Kulagowski JJ J Med Chem. 2013 Jun 13;56(11):4764-85. doi: 10.1021/jm4004895. Epub 2013 May 31. PMID:23659214[1]

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

See Also

References

  1. ↑ Zak M, Hurley CA, Ward SI, Bergeron P, Barrett K, Balazs M, Blair WS, Bull R, Chakravarty P, Chang C, Crackett P, Deshmukh G, Devoss J, Dragovich PS, Eigenbrot C, Ellwood C, Gaines S, Ghilardi N, Gibbons P, Gradl S, Gribling P, Hamman C, Harstad E, Hewitt P, Johnson A, Johnson T, Kenny JR, Koehler MF, Bir Kohli P, Labadie S, Lee WP, Liao J, Liimatta M, Mendonca R, Narukulla R, Pulk R, Reeve A, Savage S, Shia S, Steffek M, Ubhayakar S, van Abbema A, Aliagas I, Avitabile-Woo B, Xiao Y, Yang J, Kulagowski JJ. Identification of C-2 Hydroxyethyl Imidazopyrrolopyridines as Potent JAK1 Inhibitors with Favorable Physicochemical Properties and High Selectivity over JAK2. J Med Chem. 2013 Jun 13;56(11):4764-85. doi: 10.1021/jm4004895. Epub 2013 May 31. PMID:23659214 doi:10.1021/jm4004895

4ivb, resolution 1.90Å

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