CGRP (8-37) (mouse, rat) (trifluoroacetate salt)

Calcitonin gene-related protein (CGRP) (8-37) is a CGRP receptor antagonist. It corresponds to amino acids 8-37 of rodent alpha-CGRP (Cay-24728), a neuropeptide. CGRP (8-37) selectively binds to heterotrimeric complexes of calcitonin receptor-like receptor (CRLR) and receptor activity-modifying protein 1 (RAMP1) or RAMP3 (IC50s = 1 and 6.2 nM, respectively) over a complex of CRLR and RAMP2 (IC50 = 219 nM). It prevents CGRP-induced increases in heart rate and decreases in blood pressure in transgenic mice expressing rat CRLR in smooth muscle-containing tissues and sympathetic ganglia when administered at a dose of 2 µmol/kg. CGRP (8-37) also inhibits p-phenylquinone-induced writhing (ED50 = 6 µg/animal) and decreases body temperature in a dose-dependent manner in mice.Formal Name: (S)-4-((S)-2-(2-((S)-2-((S)-2-((2S,3R)-2-((S)-1-(L-valyl-L-threonyl-L-histidyl-L-arginyl-L-leucyl-L-alanylglycyl-L-leucyl-L-leucyl-L-seryl-L-arginyl-L-serylglycylglycyl-L-valyl-L-valyl-L-lysyl-L-aspartyl-L-asparaginyl-L-phenylalanyl-L-valyl)pyrrolidine-2-carboxamido)-3-hydroxybutanamido)-4-amino-4-oxobutanamido)-3-methylbutanamido)acetamido)-3-hydroxypropanamido)-5-(((S)-1-(((S)-1-amino-1-oxo-3-phenylpropan-2-yl)amino)-1-oxopropan-2-yl)amino)-5-oxopentanoic acid, trifluoroacetate salt. Synonyms: Calcitonin Gene-Related Peptide (8-37), CGRP8-37, VTHRLAGLLSRSGGVVKDNFVPTNVGSEAF-NH2. Molecular Formula: C138H224N42O41 . XCF3COOH. Formula Weight: 3127.5. Purity: >95%. Formulation: (Request formulation change), A solid. Solubility: PBS (pH 7.2): 2 mg/ml. SMILES: OC(C(F)(F)F)=O.CC(C)[C@H](N[H])C(N[C@]([C@H](O)C)([H])C(N[C@@H](CC1=CNC=N1)C(N[C@@H](CCCNC(N)=N)C(N[C@H](C(N[C@H](C(NCC(N[C@H](C(N[C@H](C(N[C@@H](CO)C(N[C@@H](CCCNC(N)=N)C(N[C@@H](CO)C(NCC(NCC(N[C@@H](C(C)C)C(N[C@@H](C(C)C)C(N[C@@H](CCCCN[H])C(N[C@@H](CC(O)=O)C(N[C@@H](CC(N)=O)C(N[C@H](C(N[C@@H](C(C)C)C(N2CCC[C@H]2C(N[C@]([C@H](O)C)([H])C(N[C@@H](CC(N)=O)C(N[C@@H](C(C)C)C(NCC(N[C@@H](CO)C(N[C@@H](CCC(O)=O)C(N[C@H](C(N[C@H](C(N)=O)CC3=CC=CC=C3)=O)C)=O)=O)=O)=O)=O)=O)=O)=O)=O)CC4=CC=CC=C4)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)CC(C)C)=O)CC(C)C)=O)=O)C)=O)CC(C)C)=O)=O)=O)=O. InChi Code: InChI=1S/C138H224N42O41.C2HF3O2/c1-64(2)46-84(158-99(189)58-152-112(197)72(17)156-119(204)85(47-65(3)4)165-117(202)80(37-29-43-149-137(144)145)160-122(207)88(51-78-55-148-63-155-78)170-135(220)110(75(20)185)179-130(215)104(142)67(7)8)120(205)166-86(48-66(5)6)121(206)173-94(62-183)128(213)161-81(38-30-44-150-138(146)147)118(203)172-92(60-181)114(199)153-56-98(188)151-57-101(191)174-106(69(11)12)133(218)176-107(70(13)14)132(217)163-79(36-27-28-42-139)116(201)169-91(54-103(194)195)124(209)168-89(52-96(140)186)123(208)167-87(50-77-34-25-22-26-35-77)125(210)177-108(71(15)16)136(221)180-45-31-39-95(180)129(214)178-109(74(19)184)134(219)171-90(53-97(141)187)126(211)175-105(68(9)10)131(216)154-59-100(190)159-93(61-182)127(212)162-82(40-41-102(192)193)115(200)157-73(18)113(198)164-83(111(143)196)49-76-32-23-21-24-33-76,3-2(4,5)1(6)7/h21-26,32-35,55,63-75,79-95,104-110,181-185H,27-31,36-54,56-62,139,142H2,1-20H3,(H2,140,186)(H2,141,187)(H2,143,196)(H,148,155)(H,151,188)(H,152,197)(H,153,199)(H,154,216)(H,156,204)(H,157,200)(H,158,189)(H,159,190)(H,160,207)(H,161,213)(H,162,212)(H,163,217)(H,164,198)(H,165,202)(H,166,205)(H,167,208)(H,168,209)(H,169,201)(H,170,220)(H,171,219)(H,172,203)(H,173,206)(H,174,191)(H,175,211)(H,176,218)(H,177,210)(H,178,214)(H,179,215)(H,192,193)(H,194,195)(H4,144,145,149)(H4,146,147,150),(H,6,7)/t72-,73-,74+,75+,79-,80-,81-,82-,83-,84-,85-,86-,87-,88-,89-,90-,91-,92-,93-,94-,95-,104-,105-,106-,107-,108-,109-,110-,/m0./s1. InChi Key: JDBOSDBBFCVZCI-BWTRZYJMSA-N.