Siamycin I - CAS 164802-68-0

Siamycin I is a tricyclic peptide antibiotic originally isolated from Streptomyces sp. AA6532. It exhibits antiviral and antibacterial effects against HIV and HSV, as well as B. subtilis, M. luteus and S. aureus.

Category
Functional Peptides
Catalog number
BAT-012101
CAS number
164802-68-0
Molecular Formula
C97H131N23O26S4
Molecular Weight
2163.48
Siamycin I
IUPAC Name
(2S)-2-[[(2S)-2-[[(1S,4S,7S,13R,19S,22S,25S,28S,31R,36R,39S,45S,51S,54R,60S)-60-(2-amino-2-oxoethyl)-4-benzyl-25-[(2S)-butan-2-yl]-39-(hydroxymethyl)-19-[(4-hydroxyphenyl)methyl]-7,22-dimethyl-51-(2-methylpropyl)-2,5,8,11,14,17,20,23,26,29,38,41,44,47,50,53,56,59,62-nonadecaoxo-28,45-di(propan-2-yl)-33,34,64,65-tetrathia-3,6,9,12,15,18,21,24,27,30,37,40,43,46,49,52,55,58,61-nonadecazatricyclo[34.21.5.413,54]hexahexacontane-31-carbonyl]amino]-3-phenylpropanoyl]amino]-3-(1H-indol-3-yl)propanoic acid
Synonyms
NP-06; siamycin II, Val(4)-; BMY 29304; FR 901724; N(1)Cys(2)-Leu-Gly-Val-Gly-Ser-Cys(3)-Asn-Asp(1)-Phe-Ala-Gly-Cys(2)-Gly-Tyr-Ala-Ile-Val-Cys(3)-Phe-Trp-OH; L-Tryptophan, L-Cysteinyl-L-leucylglycyl-L-valylglycyl-L-seryl-L-cysteinyl-L-asparaginyl-L-α-aspartyl-L-phenylalanyl-L-alanylglycyl-L-cysteinylglycyl-L-tyrosyl-L-alanyl-L-isoleucyl-L-valyl-L-cysteinyl-L-phenylalanyl-, cyclic(9→1)-peptide, cyclic(1→13),(7→19)-bis(disulfide)
Appearance
Powder
Purity
≥85%
Melting Point
255°C (dec.)
Sequence
cyclo{CLGVGSCND}FAGCGYAIVCFW (Disulfide bridge: Cys1-Cys13, Cys7-Cys19)
Storage
Store at -20°C
Solubility
Soluble in Methanol
InChI
InChI=1S/C97H131N23O26S4/c1-11-50(8)80-96(144)119-79(49(6)7)95(143)117-71(93(141)112-63(32-54-22-16-13-17-23-54)87(135)115-66(97(145)146)34-56-37-99-59-25-19-18-24-58(56)59)46-150-149-45-70-92(140)113-64(35-72(98)123)88(136)114-65-36-73(124)108-69(91(139)110-60(30-47(2)3)83(131)101-41-77(128)118-78(48(4)5)94(142)103-40-75(126)107-67(42-121)90(138)116-70)44-148-147-43-68(109-76(127)38-100-81(129)51(9)104-86(134)62(111-89(65)137)31-53-20-14-12-15-21-53)84(132)102-39-74(125)106-61(33-55-26-28-57(122)29-27-55)85(133)105-52(10)82(130)120-80/h12-29,37,47-52,60-71,78-80,99,121-122H,11,30-36,38-46H2,1-10H3,(H2,98,123)(H,100,129)(H,101,131)(H,102,132)(H,103,142)(H,104,134)(H,105,133)(H,106,125)(H,107,126)(H,108,124)(H,109,127)(H,110,139)(H,111,137)(H,112,141)(H,113,140)(H,114,136)(H,115,135)(H,116,138)(H,117,143)(H,118,128)(H,119,144)(H,120,130)(H,145,146)/t50-,51-,52-,60-,61-,62-,63-,64-,65-,66-,67-,68-,69-,70-,71-,78-,79-,80-/m0/s1
InChI Key
TXYRKTDGDMHVHR-NEKRQKPVSA-N
Canonical SMILES
CCC(C)C1C(=O)NC(C(=O)NC(CSSCC2C(=O)NC(C(=O)NC3CC(=O)NC(CSSCC(C(=O)NCC(=O)NC(C(=O)NC(C(=O)N1)C)CC4=CC=C(C=C4)O)NC(=O)CNC(=O)C(NC(=O)C(NC3=O)CC5=CC=CC=C5)C)C(=O)NC(C(=O)NCC(=O)NC(C(=O)NCC(=O)NC(C(=O)N2)CO)C(C)C)CC(C)C)CC(=O)N)C(=O)NC(CC6=CC=CC=C6)C(=O)NC(CC7=CNC8=CC=CC=C87)C(=O)O)C(C)C
Bio Calculators
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It is commonly abbreviated as: C1V1 = C2V2

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