alpha-CGRP (rat) (trifluoroacetate salt)

alpha-Calcitonin gene-related peptide (alpha-CGRP) is a neuropeptide with roles in vasodilation, cardiovascular regulation, and inflammation. It belongs to the calcitonin family of peptides, which also includes amylin (Cay-24274), calcitonin (Cay-24409, Cay-24410), and adrenomedullin. alpha-CGRP binds selectively to heterotrimeric complexes of calcitonin receptor-like receptor (CRLR) and receptor activity-modifying proteins RAMP 1 or 3 (RAMP1 and 3, IC50s = 7 and 23 nM, respectively) over a complex of CRLR and RAMP2 (IC50 = >1,000 nM). It binds to rat brain and spleen membrane preparations (IC50s = 3.9 and 3.5 nM, respectively) and relaxes human cerebral and middle meningeal arterial segments precontracted with prostaglandin F2alpha (PGF2alpha, Cay-16010, IC50s = 0.23 and 2.24 nM, respectively). In vivo, alpha-CGRP (0.01-3,000 ng/kg) decreases mean arterial blood pressure (MABP) and increases pial arteriole (PA) and middle meningeal artery (MMA) diameters in rats with closed cranial windows. It induces a 50% increase in diameter of arterioles precontracted with human endothelin-1 (ET-1, Cay-24127) in vivo in hamster cheek pouch at a concentration of 39.8 pM.Formal Name: L-seryl-L-cysteinyl-L-asparaginyl-L-threonyl-L-alanyl-L-threonyl-L-cysteinyl-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-alpha-aspartyl-L-asparaginyl-L-phenylalanyl-L-valyl-L-prolyl-L-threonyl-L-asparaginyl-L-valylglycyl-L-seryl-L-alpha-glutamyl-L-alanyl-L-phenylalaninamide, cyclic (2->7)-disulfide, trifluoroacetate salt. Synonyms: Calcitonin Gene-Related Peptide-1 (rat), alpha-Calcitonin Gene-Related Peptide (rat), CGRP-1 (rat). Molecular Formula: C162H262N50O52S2 . XCF3COOH. Formula Weight: 3806.3. Purity: >95%. Formulation: (Request formulation change), A lyophilized powder. Solubility: Water: 1 mg/ml. SMILES: NC([C@@H](NC([C@@H](NC([C@H](CCC(O)=O)NC([C@H](CO)NC(CNC([C@H](C(C)C)NC([C@H](CC(N)=O)NC([C@@]([C@@H](C)O)([H])NC([C@@H]1CCCN1C([C@H](C(C)C)NC([C@@H](NC([C@H](CC(N)=O)NC([C@@H](NC([C@H](CCCCN)NC([C@H](C(C)C)NC([C@H](C(C)C)NC(CNC(CNC([C@H](CO)NC([C@H](CCCNC(N)=N)NC([C@H](CO)NC([C@H](CC(C)C)NC([C@H](CC(C)C)NC(CNC([C@@H](NC([C@H](CC(C)C)NC([C@H](CCCNC(N)=N)NC([C@@H](NC([C@@]([C@@H](C)O)([H])NC([C@H](C(C)C)NC([C@@H](NC([C@@]([C@@H](C)O)([H])NC([C@@H](NC([C@@]([C@@H](C)O)([H])NC([C@H](CC(N)=O)N2)=O)=O)C)=O)=O)CSSC[C@H](NC([C@H](CO)N[H])=O)C2=O)=O)=O)=O)CC3=CN=CN3)=O)=O)=O)C)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)=O)CC(O)=O)=O)=O)CC4=CC=CC=C4)=O)=O)=O)=O)=O)=O)=O)=O)=O)C)=O)CC5=CC=CC=C5)=O.FC(F)(C(O)=O)F. InChi Code: InChI=1S/C162H262N50O52S2.C2HF3O2/c1-71(2)49-95(184-114(225)62-177-129(233)79(17)181-138(242)96(50-72(3)4)191-136(240)91(40-32-46-174-161(169)170)186-141(245)99(54-88-59-173-70-180-88)197-158(262)127(85(23)220)211-155(259)122(77(13)14)205-150(254)108-69-266-265-68-107(201-132(236)89(164)64-213)149(253)195-101(56-111(166)222)146(250)209-124(82(20)217)156(260)183-81(19)131(235)208-125(83(21)218)159(263)202-108)139(243)192-97(51-73(5)6)140(244)200-106(67-216)148(252)187-92(41-33-47-175-162(171)172)137(241)199-104(65-214)133(237)178-60-113(224)176-61-116(227)203-120(75(9)10)154(258)206-121(76(11)12)153(257)189-90(39-30-31-45-163)135(239)196-103(58-118(230)231)143(247)194-100(55-110(165)221)142(246)193-98(53-87-37-28-25-29-38-87)144(248)207-123(78(15)16)160(264)212-48-34-42-109(212)151(255)210-126(84(22)219)157(261)198-102(57-112(167)223)145(249)204-119(74(7)8)152(256)179-63-115(226)185-105(66-215)147(251)188-93(43-44-117(228)229)134(238)182-80(18)130(234)190-94(128(168)232)52-86-35-26-24-27-36-86,3-2(4,5)1(6)7/h24-29,35-38,59,70-85,89-109,119-127,213-220H,30-34,39-58,60-69,163-164H2,1-23H3,(H2,165,221)(H2,166,222)(H2,167,223)(H2,168,232)(H,173,180)(H,176,224)(H,177,233)(H,178,237)(H,179,256)(H,181,242)(H,182,238)(H,183,260)(H,184,225)(H,185,226)(H,186,245)(H,187,252)(H,188,251)(H,189,257)(H,190,234)(H,191,240)(H,192,243)(H,193,246)(H,194,247)(H,195,253)(H,196,239)(H,197,262)(H,198,261)(H,199,241)(H,200,244)(H,201,236)(H,202,263)(H,203,227)(H,204,249)(H,205,254)(H,206,258)(H,207,248)(H,208,235)(H,209,250)(H,210,255)(H,211,259)(H,228,229)(H,230,231)(H4,169,170,174)(H4,171,172,175),(H,6,7)/t79-,80-,81-,82+,83+,84+,85+,89-,90-,91-,92-,93-,94-,95-,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,119-,120-,121-,122-,123-,124-,125-,126-,127-,/m0./s1. InChi Key: FHIMUMUFXADYPA-OILNABKMSA-N.