Chlorotoxin

A fluorogenic peptide substrate that can be used to monitor 20S Immunoproteasome activity, which is excited at 345 nm and emits at 445 nm. This substrate is specific to the immunoproteasome, and is not hydrolyzed efficiently by the constitutive proteasome.

Online Inquiry

Specification Technical Data Related Products Customer reviews and Q&A Useful Tools Publications

CAT#	R1032
Chemical Structure
CAS	163515-35-3
M.F/Formula	C29H37N5O9S1
M.W/Mr.	599.64
Sequence	Met-Cys-Met-Pro-Cys-Phe-Thr-Thr-Asp-His-Gln-Met-Ala-Arg-Lys-Cys-Asp-Asp-Cys-Cys-Gly-Gly-Lys-Gly-Arg-Gly-Lys-Cys-Tyr-Gly-Pro-Gln-Cys-Leu-Cys-Arg
Appearance	Lyophilized powder
Purity	>95%

Source#	Synthetic
Length	36
Storage	-20°C
Solubility	Soluble in DMSO
Shipping Condition	Room temperature in continental US; may vary elsewhere.
InChI	InChI=1S/C158H249N53O47S11/c1-77(2)55-96-138(241)205-105(144(247)186-86(125(165)228)28-18-47-173-156(166)167)70-264-262-68-103-131(234)177-63-115(217)176-64-116(218)183-87(25-12-15-44-159)128(231)178-65-117(219)184-88(29-19-48-174-157(168)169)129(232)179-66-118(220)185-89(26-13-16-45-160)133(236)202-107-72-267-269-75-110-149(252)195-98(56-81-23-10-9-11-24-81)143(246)208-124(80(5)213)154(257)209-123(79(4)212)153(256)199-102(61-122(226)227)141(244)196-99(58-83-62-172-76-181-83)139(242)189-92(37-39-113(163)215)136(239)190-94(42-53-260-7)132(235)182-78(3)126(229)187-91(30-20-49-175-158(170)171)134(237)188-90(27-14-17-46-161)135(238)203-108(73-266-265-71-106(146(249)193-96)204-137(240)93(38-40-114(164)216)191-151(254)111-31-21-50-210(111)119(221)67-180-130(233)97(194-147(107)250)57-82-33-35-84(214)36-34-82)148(251)198-100(59-120(222)223)140(243)197-101(60-121(224)225)142(245)206-109(150(253)201-103)74-268-263-69-104(200-127(230)85(162)41-52-259-6)145(248)192-95(43-54-261-8)155(258)211-51-22-32-112(211)152(255)207-110/h9-11,23-24,33-36,62,76-80,85-112,123-124,212-214H,12-22,25-32,37-61,63-75,159-162H2,1-8H3,(H2,163,215)(H2,164,216)(H2,165,228)(H,172,181)(H,176,217)(H,177,234)(H,178,231)(H,179,232)(H,180,233)(H,182,235)(H,183,218)(H,184,219)(H,185,220)(H,186,247)(H,187,229)(H,188,237)(H,189,242)(H,190,239)(H,191,254)(H,192,248)(H,193,249)(H,194,250)(H,195,252)(H,196,244)(H,197,243)(H,198,251)(H,199,256)(H,200,230)(H,201,253)(H,202,236)(H,203,238)(H,204,240)(H,205,241)(H,206,245)(H,207,255)(H,208,246)(H,209,257)(H,222,223)(H,224,225)(H,226,227)(H4,166,167,173)(H4,168,169,174)(H4,170,171,175)/t78-,79+,80+,85-,86-,87-,88-,89-,90-,91-,92-,93-,94-,95-,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,109-,110-,111-,112-,123-,124-/m0/s1
InChI Key	QPAKKWCQMHUHNI-GQIQPHNSSA-N
Isomeric SMILES	C[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H]2CSSC[C@H]3C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@H]4C(=O)NCC(=O)NCC(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N1)CCSC)CCC(=O)N)CC5=CNC=N5)CC(=O)O)[C@@H](C)O)[C@@H](C)O)CC6=CC=CC=C6)NC(=O)[C@@H]7CCCN7C(=O)[C@@H](NC(=O)[C@H](CSSC[C@@H](C(=O)N4)NC(=O)[C@@H](NC(=O)[C@@H](NC2=O)CC(=O)O)CC(=O)O)NC(=O)[C@H](CCSC)N)CCSC)C(=O)N[C@H](C(=O)NCC(=O)N8CCC[C@H]8C(=O)N[C@H](C(=O)N3)CCC(=O)N)CC9=CC=C(C=C9)O)CCCCN)CCCNC(=N)N)CCCCN)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N)CC(C)C)CCCCN)CCCNC(=N)N
BoilingPoint	N/A
Melting Point	N/A

CAT#	Product Name	Inquiry
R1452	Insulin alpha-chain 1-13	Inquiry
R1447	Influenza HA 126-138	Inquiry
R1744	Urotensin II (114-124), human TFA	Inquiry
R1026	Z-Leu-Arg-Gly-Gly-AMC	Inquiry
R2031	Tifuvirtide	Inquiry

If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.