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You can:

Check the GPCR table for details.
Go to the ligand list to see ligands that interacts with this GPCR.
Go to the individual ligand page for PubMed ID information by text mining.
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GPCR

Name	Galanin receptor type 2
Species	Rattus norvegicus (Rat)
Gene	Galr2
Synonym	GAL2 receptor GAL2-R GALNR2 GALR-2
Disease	N/A for non-human GPCRs
Length	372
Amino acid sequence	MNGSGSQGAENTSQEGGSGGWQPEAVLVPLFFALIFLVGTVGNALVLAVLLRGGQAVSTTNLFILNLGVADLCFILCCVPFQATIYTLDDWVFGSLLCKAVHFLIFLTMHASSFTLAAVSLDRYLAIRYPLHSRELRTPRNALAAIGLIWGLALLFSGPYLSYYRQSQLANLTVCHPAWSAPRRRAMDLCTFVFSYLLPVLVLSLTYARTLRYLWRTVDPVTAGSGSQRAKRKVTRMIIIVAVLFCLCWMPHHALILCVWFGRFPLTRATYALRILSHLVSYANSCVNPIVYALVSKHFRKGFRKICAGLLRPAPRRASGRVSILAPGNHSGSMLEQESTDLTQVSEAAGPLVPPPALPNCTASSRTLDPAC
UniProt	O08726
Protein Data Bank	N/A
GPCR-HGmod model	N/A
3D structure model	No available structures or models
BioLiP	N/A
Therapeutic Target Database	N/A
ChEMBL	CHEMBL5577
IUPHAR	244
DrugBank	N/A

Known ligands

You can:

Click GLASS IDs to check the association information.
Click ligand names to check details of the ligands.
Download a TSV version of all interaction information.
Download a SDF structure collection of all known ligands.

GLASS ID	Molecule	Formula	Molecular weight	H-bond acceptor / donor	XlogP	Lipinski's druglikeness
3113	ALX-1393	C23H22FNO4	395.43	6 / 2	1.2	Yes
38176	CHEMBL506553	C139H210N42O43	3157.46	48 / 48	-15.9	No
52924	CHEMBL474038	C25H38N4O5	474.602	5 / 5	2.7	Yes
60639	CHEMBL473840	C26H40N4O5	488.629	5 / 5	3.0	Yes
64977	galmic	C51H60N10O11	989.1	15 / 7	4.4	No
553596	CYM-2503	C44H55N5O7	765.952	7 / 5	7.1	No
78685	Galanin-1-16	C78H116N20O21	1669.91	23 / 22	-2.9	No
123507	Galanin rat	C92H135N27O26	2035.26	29 / 28	-6.9	No
135518	CHEMBL2309599	C40H46N4O6	678.83	7 / 4	6.5	No
553965	Galnon	C40H46N4O6	678.83	7 / 4	6.5	No
161739	M35 Peptide	C107H153N27O26	2233.56	28 / 27	-1.8	No
184518	Galanin (3-29), porcine	C133H199N39O39	2968.29	45 / 42	-11.7	No
192796	Galanin (1-15)	C72H105N19O20	1556.74	22 / 21	-4.0	No
195740	D0D3CG	C138H199N35O30	2828.32	33 / 35	0.5	No
204854	125455-59-6	C61H100N18O25	1485.57	26 / 22	-11.7	No
232309	Galanin (1-29), porcine	C144H210N42O39	3153.52	45 / 44	-11.0	No
239463	C7 Peptide	C138H199N35O30	2828.32	34 / 35	0.5	No
249178	M-40	C94H145N23O24	1981.33	43 / 25	9.8	No
256753	CHEMBL515145	C27H42N4O5	502.656	5 / 5	3.4	No
317354	CHEMBL451169	C32H45N5O6	595.741	6 / 3	3.4	No
317662	BDBM85070	C146H213N43O40	3210.57	46 / 45	-11.6	No
331292	Galantide	C104H151N25O26S	2199.56	28 / 27	-0.9	No
361962	Galantide (M15)	C23H30N2O3	382.504	4 / 0	4.2	Yes
373011	Galanin Porcine 2-29	C135H201N41O38	3006.34	44 / 43	-13.0	No
389314	BDBM85205	C78H117N21O20	1668.92	22 / 22	-1.3	No
391993	BDBM85171	C137H204N42O39	3063.39	45 / 44	-13.6	No
391996	Galanin (1-29), rat	C137H204N42O39	3063.39	45 / 44	-13.6	No
396321	147138-51-0	C136H209N41O34	2962.42	39 / 45	-4.2	No
407797	BDBM85163	C206H327N57O63S	4642.28	71 / 62	-16.9	No
420972	CHEMBL475845	C27H40N4O8S	580.697	8 / 5	1.4	No
435940	CHEMBL514318	C27H42N4O4	486.657	4 / 4	4.5	Yes
439101	CHEMBL474037	C26H40N4O5	488.629	5 / 5	3.0	Yes
440126	Galanin (3-29), rat	C134H202N40O40	3013.33	45 / 44	-14.3	No