Histone H3K27Me3 (21-44)-GK-biotin (trifluoroacetate salt)

Histone H3K27Me3 (21-44)-GK-biotin is a peptide fragment of histone H3 that corresponds to amino acid residues 22-45 of the human histone H3.1 and 3.2 sequences. It is trimethylated at lysine 27 and biotinylated via a C-terminal GK linker. Trimethylation of histone H3 at lysine 27 is associated with gene silencing. It is involved in tumor progression through its regulation by enhancer of zeste homolog 2 (EZH2) and transcriptional repression of tumor suppressor genes. Levels of H3K27Me3 are reduced in 293 T-REx cells containing EEDR236T and SUZ12G610V mutations and in lymphoblastoid cells isolated from patients with Weaver syndrome, a rare overgrowth disorder characterized by EZH2, EED, or SUZ12 mutations, cancer susceptibility, and various distinctive physical features. Histone H3K27Me3 (21-44)-GK-biotin has been used as a substrate for histone lysine demethylases (KDMs) to determine substrate specificity.Formal Name: L-alanyl-L-threonyl-L-lysyl-L-alanyl-L-alanyl-L-arginyl-6-(trimethylammonio)-L-norleucyl-L-seryl-L-alanyl-L-prolyl-L-alanyl-L-threonylglycylglycyl-L-valyl-L-lysyl-L-lysyl-L-prolyl-L-histidyl-L-arginyl-L-tyrosyl-L-arginyl-L-prolylglycylglycyl-L-lysine-biotin, trifluoroacetate salt. Synonyms: ATKAAR-K(Me3)-SAPATGGVKKPHRYRPG-GK(Biotin), H3(21-44)K27me3 Substrate, Histone H3 (21-44) (Lys27me3), [Lys(Me3)27]-Histone H3 (21-44)-GK(Biotin). Molecular Formula: C130H220N44O33S . XCF3COOH. Formula Weight: 2959.5. Purity: >95%. Formulation: (Request formulation change), A solid. Solubility: Water: 1 mg/ml. SMILES: O=C(O)C(F)(F)F.O=C(CCCC[C@@H]1SC[C@@]([H])([C@@]1(N2)[H])NC2=O)NCCCC[C@H](NC(CNC(CNC([C@@H]3CCCN3C([C@@H](NC([C@H](CC4=CC=C(C=C4)O)NC([C@@H](NC([C@H](CC5=CN=CN5)NC([C@@H]6CCCN6C([C@@H](NC([C@@H](NC([C@@H](NC(CNC(CNC([C@@]([H])(NC([C@H](C)NC([C@@H]7CCCN7C([C@H](C)NC([C@@H](NC([C@@H](NC([C@@H](NC([C@H](C)NC([C@H](C)NC([C@@H](NC([C@@]([H])(NC([C@H](C)N)=O)[C@H](O)C)=O)CCCCN)=O)=O)=O)CCCNC(N)=N)=O)CCCC[N+](C)(C)C)=O)CO)=O)=O)=O)=O)[C@H](O)C)=O)=O)=O)C(C)C)=O)CCCCN)=O)CCCCN)=O)=O)=O)CCCNC(N)=N)=O)=O)CCCNC(N)=N)=O)=O)=O)=O)C([O-])=O. InChi Code: InChI=1S/C130H220N44O33S.C2HF3O2/c1-69(2)101(167-100(183)65-147-98(181)63-149-120(199)102(75(8)176)169-108(187)73(6)153-118(197)93-40-29-55-171(93)123(202)74(7)154-116(195)90(66-175)165-113(192)81(33-19-24-58-174(10,11)12)157-110(189)83(36-25-52-143-127(135)136)156-107(186)72(5)151-106(185)71(4)152-109(188)80(31-15-20-48-131)160-122(201)103(76(9)177)168-105(184)70(3)134)121(200)159-82(32-16-21-49-132)111(190)161-85(34-17-22-50-133)124(203)173-57-30-41-94(173)119(198)164-89(60-78-61-141-68-150-78)115(194)158-84(37-26-53-144-128(137)138)112(191)163-88(59-77-44-46-79(178)47-45-77)114(193)162-86(38-27-54-145-129(139)140)125(204)172-56-28-39-92(172)117(196)148-62-97(180)146-64-99(182)155-87(126(205)206)35-18-23-51-142-96(179)43-14-13-42-95-104-91(67-208-95)166-130(207)170-104,3-2(4,5)1(6)7/h44-47,61,68-76,80-95,101-104,175-177H,13-43,48-60,62-67,131-134H2,1-12H3,(H39-,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,205,206,207),(H,6,7)/t70-,71-,72-,73-,74-,75+,76+,80-,81-,82-,83-,84-,85-,86-,87-,88-,89-,90-,91-,92-,93-,94-,95-,101-,102-,103-,104-,/m0./s1. InChi Key: HYQUUKCXSSEIJL-OYLSTRRTSA-N.