Orexin B, rat, mouse

Orexin B, rat, mouse is an endogenous agonist at Orexin receptor with Kis of 420 and 36 nM for OX1 and OX2, respectively.

Product information

CAS Number: 202801-92-1

Molecular Weight: 2936.40

Formula: C126H215N45O34S

Chemical Name: (2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-{2-[(2S)-2-[(2S)-2-(2-{[(2S)-1-[(2S)-1-(2-{[(2S)-1-[(2S)-2-amino-5-carbamimidamidopentanoyl]pyrrolidin-2-yl]formamido}acetyl)pyrrolidine-2-carbonyl]pyrrolidin-2-yl]formamido}acetamido)-4-methylpentanamido]-4-carbamoylbutanamido]acetamido}-5-carbamimidamidopentanamido]-4-methylpentanamido]-4-carbamoylbutanamido]-5-carbamimidamidopentanamido]-4-methylpentanamido]-4-methylpentanamido]-N-[(1S)-1-{[(1S)-2-carbamoyl-1-[({[(1S)-2-carbamoyl-1-{[(1S)-1-{[(1S)-1-{[(1S)-1-[({[(1S,2S)-1-{[(1S)-1-{[(1S,2R)-1-{[(1S)-1-carbamoyl-3-(methylsulfanyl)propyl]carbamoyl}-2-hydroxypropyl]carbamoyl}-3-methylbutyl]carbamoyl}-2-methylbutyl]carbamoyl}methyl)carbamoyl]ethyl]carbamoyl}ethyl]carbamoyl}-2-(1H-imidazol-4-yl)ethyl]carbamoyl}ethyl]carbamoyl}methyl)carbamoyl]ethyl]carbamoyl}ethyl]pentanediamide

Smiles: CC[C@H](C)[C@H](NC(=O)CNC(=O)[C@H](C)NC(=O)[C@H](C)NC(=O)[C@H](CC1=CNC=N1)NC(=O)[C@H](CC(N)=O)NC(=O)CNC(=O)[C@H](CC(N)=O)NC(=O)[C@H](C)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCNC(N)=N)NC(=O)CNC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CC(C)C)NC(=O)CNC(=O)[C@@H]1CCCN1C(=O)[C@@H]1CCCN1C(=O)CNC(=O)[C@@H]1CCCN1C(=O)[C@@H](N)CCCNC(N)=N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCSC)C(N)=O

InChiKey: RLVZFBVFVIDDPQ-GWQFQBPDSA-N

InChi: InChI=1S/C126H215N45O34S/c1-18-65(12)99(120(202)166-82(49-64(10)11)117(199)168-100(69(16)172)121(203)156-72(101(133)183)37-44-206-17)167-97(181)57-144-102(184)66(13)150-103(185)67(14)152-111(193)83(50-70-53-140-59-149-70)165-116(198)85(52-93(132)177)155-95(179)55-146-106(188)84(51-92(131)176)161-104(186)68(15)151-107(189)76(32-35-90(129)174)159-114(196)80(47-62(6)7)164-115(197)81(48-63(8)9)163-109(191)74(27-21-40-143-126(138)139)157-110(192)77(33-36-91(130)175)160-113(195)79(46-61(4)5)162-108(190)73(26-20-39-142-125(136)137)153-94(178)54-145-105(187)75(31-34-89(128)173)158-112(194)78(45-60(2)3)154-96(180)56-147-118(200)87-29-23-43-171(87)123(205)88-30-24-41-169(88)98(182)58-148-119(201)86-28-22-42-170(86)122(204)71(127)25-19-38-141-124(134)135/h53,59-69,71-88,99-100,172H,18-52,54-58,127H2,1-17H3,(H2,128,173)(H2,129,174)(H2,130,175)(H2,131,176)(H2,132,177)(H2,133,183)(H,140,149)(H,144,184)(H,145,187)(H,146,188)(H,147,200)(H,148,201)(H,150,185)(H,151,189)(H,152,193)(H,153,178)(H,154,180)(H,155,179)(H,156,203)(H,157,192)(H,158,194)(H,159,196)(H,160,195)(H,161,186)(H,162,190)(H,163,191)(H,164,197)(H,165,198)(H,166,202)(H,167,181)(H,168,199)(H4,134,135,141)(H4,136,137,142)(H4,138,139,143)/t65-,66-,67-,68-,69+,71-,72-,73-,74-,75-,76-,77-,78-,79-,80-,81-,82-,83-,84-,85-,86-,87-,88-,99-,100-/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

Orexin B is derived by proteolytic amino acid precursor, prepro-orexin, which is encoded by a gene localized to chromosome 17q21 in humans. In radioligand binding studies, Orexin B has a higher affinity for the OX2 receptor. Human Orexin B has two amino acid substitutions when compared with the rodent sequence. OX2 receptor is indeed a high-affinity receptor for human orexin B, with an IC50 of 36 nM in the binding assay and an EC50 of 60 nM in the [Ca2+]i transient assay. Human Orexin B has significantly lower affinity for the human OX1: the calculated IC50 in the competitive binding assay and the EC50 in the [Ca2+]i transient assay are 420 nM and 2500 nM for human orexin-B, respectively.

In Vivo:

Human Orexin B significantly augments food intake; at the 2 hr time point, 5- and 12-fold stimulation of food consumption is observed by 3 nM and 30 nM orexin-B, respectively.

Products are for research use only. Not for human use.