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Exercise: prophet

Now let's use the profile we just created to align xlrhodop.pep to our opsin2 sequences.

unix % prophet
Gapped alignment for profiles
Input sequence(s): xlrhodop.pep
Profile or matrix file: OPS2_*.prophecy
Gap opening coefficient [1.0]:
Gap extension coefficient [0.1]:
Output file [OPS2_*.prophet]:

unix % more OPS2_*.prophet

Local: Consensus vs OPSD_XENLA
Score: 2189.00

Consensus	1	 M.ERS.HLPEG.PFAAALSGARFAAQSSGN.ASVL..DWNVLP.E 38
			 | : : :  || : ::::: :	   |: |	::|:  :	   | :
OPSD_XENLA	1	 MNG.GTE..EGPN.NFYVP.PMS...SN.NKTGVVRSP.P..PFD 33

Consensus	39	 MAPLVHPHWSRF.APMNPMWHKILGLFTLILGII.SCLG.NGLVI 80
			 :::   :::  : :	 :|: :::|: ::::|:::   |: | :::
OPSD_XENLA	34	 YPQ.Q.QYYL.LAE..EPWQYSALAAYMFLLILLGL.LPINFMTL 72

Consensus	81	 YI.FA.GTKSLRTPANLLVLNLAFSD..FCMMASMSPV.MAINCF 120
			 :: :: ::  ||||	|:::|||:|::  : |:: :::|	| ::::
OPSD_XENLA	73	 FVTIQHKKL.LRTPLNYILLNLVFANHFM.MVLCGFTVTMYTSMH 115

Consensus	121	 YGETWVLGPLGC..D.IYAAL.GSLFGCVSIWSMCMIAFDRYNVI 161
			   : :::|| ||  : ::|:| |   | |::||::::|::|| |:
OPSD_XENLA	116	 G.GYFIFGPTGCYIEGFFATLGG...GEVALWSLVVLAVERYIVV 156

Consensus	162	 VKGINGTPLTIKTAILKALFIWMM.AVFW.TIMPLFGWSRYVPEG 204
			 :|::::	::::: ||: ::|:|:| : :: : :||||||||:|||
OPSD_XENLA	157	 CKPMANFRFGENHAIMGVAFTWIMAL.LSCAAPPLFGWSRYIPEG 200

Consensus	205	 NLTSCSIDYLT.R.DWNPRSYL.ITYFLFV.YFFPLFIICYSY.W 244
			 : :||::||:| : : |: |::	  |:::|	: :||::|:::| :
OPSD_XENLA	201	 MQCSCGVDYYTLKPEVNNESFVIY.YMFIVHFTIPLIVIFFCYGR 244

Consensus	245	 FIIAAVAAHEKAMRDQAKKMNVKSLRSNEDCDKQSAEI.R.LAKV 287
			 :::::	 :|:|:::|:: :  ::::::::	 :   |:	| :: |
OPSD_XENLA	245	 LLCTVK..KEAAAQQQESLT..TTQKAEKE..E...EVTRMVV.V 279

Consensus	288	 ALTTISLWFMAWTPYAIIAY.FGLFGIDGA.LTP.LTT.IWGALF 328
			  :::: :::::|:|||::|: :	:|: :|:	::| ::|	  :|:|
OPSD_XENLA	280	 IMVVF.FFLICWVPYAYVAFYI.IFTHQGSNFGPVFMTVP.PAFF 321

Consensus	329	 AKASSCYNPIVYAISHPKYRA.ALKEKCPMCVCGETD.EPSPDAP 371
			 ||:|::|||::| :	::::|  ::   :: ::||::: :::::::
OPSD_XENLA	322	 AKSSAIYNPVIYIVLNKQFRNCLI...ITTLCCGKNPFGDEDGSS 363

Consensus	372	 QSDATTTSEAAS..KAPAAI.EFPD		       393
			  |:||:::||:|  ::: :: :	|:
OPSD_XENLA	364	 .SAATSKTEASSVSSSQ.QVSP.PA		       385

The vertical bars (|) represent residues that are identical between the OPS2_* consensus and our rhodopsin, while the colons (:) represent conservative substitutions. We hope you can see that aligning members of a family can reveal conserved regions that may be important for structure and/or function.



EMBnet
2005-01-22