• GPCR Structures: mu and kappa opioid structures



    So, two more GPCR structures in last weeks Nature magazine. This time two paralogous opioid receptors, the mu (human UniProt:P35372) and kappa (human UniProt:P41145) subtypes, one from mouse, the other from human, and both complexed to synthetic antagonists. These continue to add to our ability to understand and predict pharmacology of known and future drugs, but also will be great examples for engagement with the public over science - everyone has heard of opiates, and heroin and morphine, even my kids have!

    %A A. Manglik 
    %A A. Kruse 
    %A T. Kobilka 
    %A F. Thian 
    %A J. Mathiesen 
    %A R. Sunahara 
    %A L. Pardo 
    %A W. Weis 
    %A B. Kobilka 
    %A S. Granier 
    %D 2012 
    %T Crystal structure of the µ-opioid receptor bound to a morphinan antagonist 
    %J Nature 
    %O DOI: 10.1038/nature10954
    
    %A H. Wu 
    %A D. Wacker 
    %A M. Mileni 
    %A V. Katritch 
    %A G. Han 
    %A E. Varmy 
    %A W. Liu
    %A A. Thompson 
    %A X. Huang 
    %A F. Carroll 
    %A S. Mascarella 
    %A R. Westkaemper 
    %A P. Mosier 
    %A B. Roth 
    %A V. Cherezov
    %A R. Stevens, R. 
    %D 2012 
    %T Structure of the human κ-opioid receptor in complex with JDTic 
    %J Nature 
    %O DOI: 10.1038/nature10939
    
    
    

    Here's an alignment for the 13 sequence distinct structures; I don't think it's completely right in several places, but it is a challenging family to align completely and certainly it's not unambiguous, but it's a start.

    1. 3uon - human muscarinic M2 receptor 
    2. 4daj - rat muscarinic M3 receptor 
    3. 3rze - human histamine H1 receptor
    4. 2rh1 - human beta-2 adrenergic receptor 
    5. 2vt4 - turkey beta-1 adrenergic receptor 
    6. 3pbl - human dopamine D3 receptor
    7. 2ydv - human adenosine A2a receptor 
    8. 3v2w - human sphingosine-1-phosphate receptor 
    9. 4djh - human kappa opioid receptor 
    10. 4dkl - mouse mu opioid receptor 
    11. 3odu - human CCR4 receptor 
    12. 2i35 - bovine rhodopsin 
    13. 2z73 - squid rhodopsin


    
    
    
    
    
                               10        20        30        40        50  
    3uon   (  20 )                                             tfevvfivl
    4dajA  (  64 )                                             iwqvvfiaf
    3rze   (  28 )                                                 mplvv
    2rh1   (  29 )                                            devwvvgmgi
    2vt4A  (  40 )                                               weagmsl
    3pblA  (  32 )                                                   yal
    2ydv   (   3 )                                             imgssvYit
    3v2w   (  17 )           sdyvnydIIvrHYnyTgklnisa                ltsv
    4djhA  (  55 )                                            spaipviita
    4dkl   (  65 )                                             mvtaitima
    3oduA  (  27 )            pçfre-------------------------enanfnkiflpt
    1u19A  (   1 )            mnGtegpnfyVPfsnktgvVrsPFeapQyyLaepwqFsmlAa
    2z73A  (   9 )         etwwyNpsIvVhpHWref--------------dqvpdavYyslGi
                                                                   aaaaa
    
                               60        70        80        90        100 
    3uon   (  29 )    vagslSlvTiigNilVmvSIkvnrhLqtvnnyflfSLAcADliiGvfSMn
    4dajA  (  73 )    ltgflAlvTiigNilVivAFkvnkqLktvnnyFllSLAcADliIGviSMn
    3rze   (  33 )    vlsticlvTvglNllVlyAvrserkLhtvGnlYIvsLSvADliVGavVMp
    2rh1   (  39 )    vmslivlaIvfgNvlVitAIakferLqtvtnyFItsLAcADlvMGlaVVp
    2vt4A  (  47 )    lmalVvllIvagNvlViaAigstqrLqtltnlFItsLAcADlvvGllVVp
    3pblA  (  35 )    sYcalilaIvfgNglVcmAVlkeraLqtttnyLVvsLAvADllvAtlVMp
    2ydv   (  12 )    vElaiavlAilgNvlVcwAvwlnsnLqnvtnyFVvsAAaADilVGvlAIp
    3v2w   (  51 )    vfiliCcfIileNifvlltiwktkkFhrpMYyFIgnLAlSDllaGvaYta
    4djhA  (  65 )    vysvvfvvGlvgNslVmfVIirytkmktaTniYIfNLAlADalVTtTMpf
    4dkl   (  74 )    lYsiVcvvGlfgNflvmyvIvrytkMktAtniYIfNLAlADalATsTLpf
    3oduA  (  44 )    iYsiIfltGivgNglvilvMgyqkklrsmtdkYRlhLSvADllFVitLpf
    1u19A  (  43 )    yMflLimlGfpiNflTlyVTvqHkkLrtplNyILlnLAvADlfMVfg-GF
    2z73A  (  40 )    fIgiCgiiGcggNgiViyLFtktksLqtpanmFiinLAfSDftFSlvNGf
                      aaaaaaaaaaaaaaaaaaaaaa      aaaaaaaaaaaaaaaaaa aaa
    
                               110       120       130       140       150 
    3uon   (  79 )    lytlytvi-gyWplgpvvÇdlWlalDYvVSNAsVmNLliiSfdryfcvtk
    4dajA  ( 123 )    lFttyiim-nrWalgnlaÇdlwLSiDYvASNAsVmNLlvISfDryfsitr
    3rze   (  83 )    mnilyllm-skwsLgrplÇlfWLSmDYVASTASIfSVfiLCiDryrsvqq
    2rh1   (  89 )    fgaahilm-kmWtfgnfwçefWTSiDVlCVTASIeTLcvIAvdryfAIts
    2vt4A  (  97 )    fgatlvvr-gtWlwgsflçelWTSlDVlCVTAsIeTLcvIAiDrylaits
    3pblA  (  85 )    wvvylevtggvWnfsricÇdvFVTlDVmMcTAsIwNLCaISidRytAVvm
    2ydv   (  62 )    faiaIst---GfçaaçhgÇLfiACfVLVLTASSIfSLlaIAiDryiairi
    3v2w   ( 101 )    Nlllsga--tTykLtPaqWFlREGsMFvALSASVfSLlaIAieryitmlk
    4djhA  ( 115 )    qstvylmn--sWpfgdvlÇkiVlsiDyyNMfTSIfTLtmMSvdRyiaVch
    4dkl   ( 124 )    qsvnylmg--tWpfgnilÇkiviSidYyNMFTSIfTLctMSvdRyiAVCh
    3oduA  (  94 )    WavDAva---nWyfgnflÇkaVHviYTVNlYSSVwILAfISlDRylAiVh
    1u19A  (  92 )    tTTlyTSlhGyFvfgptGÇnlEGffATLGGEIaLWSLvvLaieRyvvVck
    2z73A  (  90 )    plMtiSCflkkWifgfaaÇkvYGfiGGiFGFMsIMTMAMiSiDrynViGr
                      aaaaaaa        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa  
    
                               160       170       180       190       200 
    3uon   ( 128 )    pltypvk---rttkmAgmmiaaAwvlSfilwapaIlfwqfivg-------
    4dajA  ( 172 )    pltyrak---rttkrAgvmiglAwviSfvlWApaIlfwqyfvg-------
    3rze   ( 132 )    plrylky---rtktrAsatilgawflSfl-WvipIlgwnh          
    2rh1   ( 138 )    pfkyqSl---ltknkArviilmvwivSgltSflpIqmhwyr-----athq
    2vt4A  ( 146 )    pfryqsl---mtrarAkviictvwaiSalvSflpImmhwWr-----dedp
    3pblA  ( 135 )    pvhyqhgtgqsscrrValmitavwvlAfaVSc-pLlfgfNtTg-------
    2ydv   ( 109 )    plryngl---vtgtrAkgiiaicwvlSfaIGltPmlgwnnÇgqp--kegk
    3v2w   ( 156 )               nnfrlfllisacwviSlilGglPimgwn-----------
    4djhA  ( 163 )    pvkaldf---rtplkAkiinicIwllSssvGisAivlGGtkvred-----
    4dkl   ( 172 )    pvkaldf---rtprnAkivnvcNwilSsaiGlpVmfmAttkyrqg-----
    3oduA  ( 141 )    atn----sqrprkllAekvVyvgVwipAlllT-ipDfif-Anvsead---
    1u19A  ( 142 )    pmsn----frfgenhaimgvafTwvmAlaCAapPlvgwSrYIPE------
    2z73A  ( 140 )    pmaas---kkMshrrAfimiifVwlwSvlwAigPifgwGaYtLE------
                                  aaaaaaaaaaaaaaaaaaa                   
    
                               210       220       230       240       250 
    3uon   ( 168 )    ----vrtVedgeÇyIqff------snaavtfgtAiaaFylpviiMtvlyw
    4dajA  ( 212 )    ----krtVppgeÇfIqfl------septitfgtAiaaFymPvtiMtilyw
    3rze   ( 175 )           rredkÇeTdfy------dvtwfkvmtaiinFylPtllMlwfya
    2rh1   ( 180 )    eAinÇyae-etçÇdff--------TnqayaiasSivSFyvplviMvfvYs
    2vt4A  ( 188 )    qAlkçyqd-pgçÇdfv--------TnrayaiasSiiSFyipLliMifval
    3pblA  ( 177 )    --------dptvÇsIs---------npdFViySSvvSFylPfgvTvlvya
    2ydv   ( 154 )    ahsqgÇgegqvAÇlFedVV-----pmnYMVyfNffaCVlvPlllMlgvyl
    3v2w   ( 184 )    ----ÇisalssÇSTVLP-------LYhkhYIlfCTtvFtllllsIvilYc
    4djhA  ( 205 )    -------vdvieÇslqFpdddyswwdlfmkicVfifAfviPvliIivcyt
    4dkl   ( 214 )    ---------sidçtltfsh-ptwywenllKicVfifAfimPvliItvcyg
    3oduA  ( 182 )    --------dryiÇdrfyp---ndlwvvvfqfqhimvglilPgivIlsCyc
    1u19A  ( 182 )    -------GMQCSÇGIDYYTpheetnNesFViyMfvvHfiiPlivIffcyg
    2z73A  ( 181 )    -------GVLCNÇSFdYIsr--dsttrsNIlcMFilGffgPiliiffCyf
                                                aaaaaaaaaa  aaaaaaaaaaaa
    
                               260       270       280       290       300 
    3uon   ( 208 )    hisrasksri                   pppsrekkvtrtilaIllaFi
    4dajA  ( 252 )    rIyketek                       like   aqTlsaIllaFi
    3rze   ( 212 )    kIykaVrqhc                   lhmnrerkaakQLgfIMaaFi
    2rh1   ( 221 )    rVfqeakrql                   kfclkeHkaLktlgiIMgtFt
    2vt4A  ( 229 )    rvyreakeq                       irehkalktlgiImgvFt
    3pblA  ( 210 )    rIyvvlkqrrrk-----------------gvplrekkatqMVaiVlgaFi
    2ydv   ( 199 )    rIflaarrqlkqmesq             stlqkevhaakSLaiIvglFa
    3v2w   ( 223 )    riyslvrtr                   asrssenvaLlkTViiVLsvFi
    4djhA  ( 248 )    lMilrlksvrllsg              rekdrnlrritrLVlvVVavFv
    4dkl   ( 254 )    lmilrlksvr                   ekdrnlrritrMVlvVvavFi
    3oduA  ( 221 )    iIisklshs                     kghqkrkalktTviLilaFf
    1u19A  ( 225 )    qLvftvkeaaaq------------qqesattqkaekevTrMviiMviaFl
    2z73A  ( 222 )    nIvmsvsnhekemaamakrlnakelrkaqaganaemrlAkIsivIVsqFl
                      aaaaa                            aaaaaaaaaaaaaaaaa
    
                               310       320       330       340       350 
    3uon   ( 398 )    itWapYNvmVlintfçap--------ç--ipntvwtiGywlCYinstiNp
    4dajA  ( 501 )    itWtpyNimVlvntfçds--------ç--ipktywnlgywlCYiNStvNP
    3rze   ( 426 )    lCWipYFiffmviafçkn--------ç--cnehlhmftiWlGYiNStlNP
    2rh1   ( 284 )    lcWlpFFiVNivhviqdn----------lirkevyillNwiGYvNSgfNp
    2vt4A  ( 301 )    lCWlpFFlvnivnvfnrd----------lvpdwlfvafnwlGYAnSAmnp
    3pblA  ( 340 )    vCWlpFFltHvlnthçqt--------ç-hvspelysattwlGYvNsalNP
    2ydv   ( 244 )    lCWlpLHiiNcftffçpd--------çshaplwlMylAivlSHtNSvvNP
    3v2w   ( 267 )    acwapLFiLLllDvgçkvk------tç--diLfrAeyfLvlAvlNSgtNP
    4djhA  ( 285 )    vcWtpIHifilvealgs            aalssyyfcIalGytNSslNP
    4dkl   ( 291 )    vcWtpIHiyViikaliti-------pettfqtvswhfcialGYtNSclNp
    3oduA  ( 250 )    acWlpyyigisidsfilleiikqgçefentvhkwisitEAlAFfHCclNp
    1u19A  ( 263 )    iCWlpYAgvAfyIfthqgsd---------fgpifMTipAFfAKtSAvyNP
    2z73A  ( 272 )    lSWspYAvvAllAQfgplew---------VtpyaAQlpVMfAKaSaihNP
                      aaaaaaaaaaaaaaa                aaaaaaaaaaaaa   aaa
    
                               360       370       380       390       400 
    3uon   ( 438 )    acYalcnatFkktfkhllm                               
    4dajA  ( 541 )    vcYalcnktFrttfkt                                  
    3rze   ( 466 )    liYplCnenFkktfkrilhi                              
    2rh1   ( 324 )    liYc-rspdfriAfqellcl                              
    2vt4A  ( 341 )    iiYc-rspdfrkAfkrlla                               
    3pblA  ( 381 )    viYttfnieFrkAflkilsc                              
    2ydv   ( 286 )    fiyAyrireFrqTFrkiirshvlrqqepfkaa                  
    3v2w   ( 309 )    iiytltNkemrrafiri                                 
    4djhA  ( 328 )    ilYafldenFkrcfrdfcfp                              
    4dkl   ( 334 )    vlYafldenFkrCfrefci                               
    3oduA  ( 300 )    ilyaflgakfktsaqhalts                              
    1u19A  ( 304 )    viYimmnkqFrnCmvttlccgknplgddeasttVsktetsqvapa     
    2z73A  ( 313 )    miYsvsHpkFreAIsqtfpwvLtccqfddketeddkdaeteipage    
                      aaaaa  aaaaaaaaaa                                 
    
                               410                      
                                 
    
    

  • Conference: Cutting Edge Approaches to Drug Design 2012



    The "Cutting Edge Approaches to Drug Design" (CEADD) Symposia, originally set up by the RSC Molecular Modelling Group and now run by the Molecular Graphics and Modelling Society (MGMS), are a well-established event in the scientific calendar. They are aimed primarily at people with a medicinal chemistry background and should also be of interest to those involved in computational biology, computational chemistry, bioinformatics, cheminformatics, biophysics and structural biology. The emphasis is on interdisciplinarity in drug discovery and also on evolving tools and techniques and their application in understanding biological systems.

    Further details are here.

    One of the best conferences for modelling in the UK I think!


  • Some good news for startups!


    The Wellcome Trust have announced a £200 million pound fund for startups. This is very good news.

  • ChEMBL Schema & SQL Querying Webinar

    This is a call for people wanting to sign up for the "Schema & SQL Querying" webinar that will be hosted next Wednesday 21st March at 3.30pm (GMT).

    It will be a 45 minute webinar that will take you through the ChEMBL schema and also how to use SQL queries to extract data from the database.
    Remember to register your interest in our webinars on the Doodle Poll. Make sure that you leave your email address as well as your name so that we can send the connection details to you. Any problems, please contact chembl-help@ebi.ac.uk.
    For those of you who can't make it to this webinar, we will be hosting it again on the 16th of May.

  • How much does google analytics under-report things?


    I was just comparing the built in page view stats tools in google's blogger software and the stats in google analytics. The former is server side, but they do prune access from spam site (I think), the latter is relies on interactions with the client, cookies, etc. so in the toy way I understand teh interweb, I see this as 'client' side. It's really simple to configure things so that google analytics doesn't track access, and quite a few people do.

    So here's an interesting number - from July 1st 2011 to today, there were 184,035 page views (~710 per day) for this blog in google bloggers stats for chembl.blogspot.com, and only 55,435 page views in google analytics (~214 per day) - don't laugh at how small the numbers are, but now you know. Anyway, google analytics is about 3.3 fold down on actual page views.

    I'm sure all bloggers look at their stats, so is this ratio typical?

  • ChEMBL in rdf form using TopBraid.


    There's an interesting blog post that I was directed to recently, and it may be of interest to a broader audience. It's here on David Price's blog and details the loading of an early version of ChEMBL into OWL using D2R under TopBraid Composer. Shame there's no updates since the original post...

  • Tender: Consultancy services for OPS licensing and IP issues for Open PHACTS IMI Project



    Open PHACTS is a 3-year EU-funded (IMI) project, targeted to enhance and accelerate data intensive drug research for academic and industry partners. It comprises the development of an innovative open source, open standard and open access platform (application), the Open Pharmacological Space (OPS). The project is driven by the Open PHACTS consortium, composed of 14 European core academic and SME partners in close cooperation with 8 major industry partners from pharmacological areas.

    The realization of the OPS platform and its placement in the targeted pharmaceutical area significantly depends on a proper strategic licensing plan considering all licensing and IP issues of the incorporated sources (data, software components).

    Main purpose and primary role of required consultancy:
    • The primary role of the consultant is to contribute in depth knowledge with respect to licensing models and IP rights to the Open PHACTS project. Thus, consultancy services are targeted to ensure compliance of the OPS platform with licensing conditions related to the data and software components held in it.
    • To develop a high-level strategic plan for licensing, considering the current and anticipated data sources and software components as well as OPS business case requirements.
    • In depth assessment of licencing status of each individual data source, further providing a recommendation whether or how this is acceptable for inclusion into the open PHACTS platform.
    • Engagement in communication of licence model options with partners.
    • To work with data owners to develop alternative licence models (e.g. such as Creative Commons model) where the original one does not fit and the provider is willing to participate.
    • To produce internal and public policy documents regarding the Open PHACTS licencing compliance for the data sources it contains.
    • To represent Open PHACTS in public forum to promote the ability to consume public data for publishing in the platform.
    Further details can be found here, deadline for applications is 16th April 2012.

  • The 22nd Jyväskylä Summer School


    We're involved in teaching at the 22nd Jyväskylä Summer School, in Jyväskylä in the fabulous country of Finland. Details of the contents and schedule for the Drug Discovery course held from the 20th to 24th August 2012 can be found here.