(4S)-4-{2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-{2-[(2S)-2-[(2S)-6-amino-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-{2-[(2S,3S)-2-(2-aminoacetamido)-3-methylpentanamido]acetamido}hexanamido]-3-phenylpropanamido]-4-methylpentanamido]-3-(1H-imidazol-4-yl)propanamido]-3-hydroxypropanamido]propanamido]hexanamido]hexanamido]-3-phenylpropanamido]acetamido}hexanamido]propanamido]-3-phenylpropanamido]-3-methylbutanamido]acetamido}-4-{[(1S,2S)-1-{[(1S)-1-{[(1S)-2-carbamoyl-1-{[(1S)-1-carboxy-2-hydroxyethyl]carbamoyl}ethyl]carbamoyl}-3-(methylsulfanyl)propyl]carbamoyl}-2-methylbutyl]carbamoyl}butanoic acid

• ChemBase ID: 133441
• Molecular Formular: C114H180N30O29S
• Molecular Mass: 2466.8976
• Monoisotopic Mass: 2465.32532089
• SMILES: CC[C@H](C)[C@@H](C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](Cc1c[nH]cn1)C(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](Cc1ccccc1)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C)C(=O)N[C@@H](Cc1ccccc1)C(=O)N[C@@H](C(C)C)C(=O)NCC(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](CO)C(=O)O)NC(=O)CN
• Canonical SMILES: NCCCC[C@@H](C(=O)N[C@H](C(=O)NCC(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)NCC(=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)O)CO)CC(=O)N)CCSC)[C@H](CC)C)CCC(=O)O)C(C)C)Cc1ccccc1)C)CCCCN)Cc1ccccc1)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@H]([C@H](CC)C)NC(=O)CN)CCCCN)Cc1ccccc1)CC(C)C)Cc1nc[nH]c1)CO)C)CCCCN
• InChI: InChI=1S/C114H180N30O29S/c1-12-65(7)94(142-88(148)55-119)112(170)124-59-90(150)129-74(38-24-28-45-116)100(158)137-81(51-70-33-19-15-20-34-70)106(164)135-79(49-63(3)4)105(163)138-83(53-72-56-121-62-125-72)107(165)140-85(60-145)110(168)127-67(9)96(154)131-75(39-25-29-46-117)101(159)132-76(40-26-30-47-118)102(160)136-80(50-69-31-17-14-18-32-69)98(156)122-57-89(149)128-73(37-23-27-44-115)99(157)126-68(10)97(155)134-82(52-71-35-21-16-22-36-71)109(167)143-93(64(5)6)111(169)123-58-91(151)130-77(41-42-92(152)153)104(162)144-95(66(8)13-2)113(171)133-78(43-48-174-11)103(161)139-84(54-87(120)147)108(166)141-86(61-146)114(172)173/h14-22,31-36,56,62-68,73-86,93-95,145-146H,12-13,23-30,37-55,57-61,115-119H2,1-11H3,(H2,120,147)(H,121,125)(H,122,156)(H,123,169)(H,124,170)(H,126,157)(H,127,168)(H,128,149)(H,129,150)(H,130,151)(H,131,154)(H,132,159)(H,133,171)(H,134,155)(H,135,164)(H,136,160)(H,137,158)(H,138,163)(H,139,161)(H,140,165)(H,141,166)(H,142,148)(H,143,167)(H,144,162)(H,152,153)(H,172,173)/t65-,66-,67-,68-,73-,74-,75-,76-,77-,78-,79-,80-,81-,82-,83-,84-,85-,86-,93-,94-,95-/m0/s1
• InChIKey: MGIUUAHJVPPFEV-ABXDCCGRSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: (4S)-4-{2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-{2-[(2S)-2-[(2S)-6-amino-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-{2-[(2S,3S)-2-(2-aminoacetamido)-3-methylpentanamido]acetamido}hexanamido]-3-phenylpropanamido]-4-methylpentanamido]-3-(1H-imidazol-4-yl)propanamido]-3-hydroxypropanamido]propanamido]hexanamido]hexanamido]-3-phenylpropanamido]acetamido}hexanamido]propanamido]-3-phenylpropanamido]-3-methylbutanamido]acetamido}-4-{[(1S,2S)-1-{[(1S)-1-{[(1S)-2-carbamoyl-1-{[(1S)-1-carboxy-2-hydroxyethyl]carbamoyl}ethyl]carbamoyl}-3-(methylsulfanyl)propyl]carbamoyl}-2-methylbutyl]carbamoyl}butanoic acid
• IUPAC Traditional name: (4S)-4-{2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-{2-[(2S)-2-[(2S)-6-amino-2-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-2-[(2S)-6-amino-2-{2-[(2S,3S)-2-(2-aminoacetamido)-3-methylpentanamido]acetamido}hexanamido]-3-phenylpropanamido]-4-methylpentanamido]-3-(1H-imidazol-4-yl)propanamido]-3-hydroxypropanamido]propanamido]hexanamido]hexanamido]-3-phenylpropanamido]acetamido}hexanamido]propanamido]-3-phenylpropanamido]-3-methylbutanamido]acetamido}-4-{[(1S,2S)-1-{[(1S)-1-{[(1S)-2-carbamoyl-1-{[(1S)-1-carboxy-2-hydroxyethyl]carbamoyl}ethyl]carbamoyl}-3-(methylsulfanyl)propyl]carbamoyl}-2-methylbutyl]carbamoyl}butanoic acid
• Synonyms: Magainin II

Database IDs

• CAS Number: 108433-95-0
• MDL Number: MFCD00133522
• PubChem SID: 162227718
• PubChem CID: 16166807

CALCULATED PROPERTIES

• Acid pKa: 2.9815757
• H Acceptors: 35
• H Donor: 33
• LogD (pH = 5.5): -22.69066
• LogD (pH = 7.4): -18.906967
• Log P: -14.077708
• Molar Refractivity: 631.8528 cm^3
• Polarizability: 248.54482 Å^3
• Polar Surface Area: 957.13 Å^2
• Rotatable Bonds: 86
• Lipinski's Rule of Five: false

PROPERTIES

Safety Information

• German water hazard class: 3
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• Storage Temperature: -20°C

Product Information

• Purity: ≥97% (HPLC)

DETAILS

Sigma Aldrich - M7402

Amino Acid Sequence
Gly-Ile-Gly-Lys-Phe-Leu-His-Ser-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val-Gly-Glu-Ile-Met-Asn-Ser
Biochem/physiol Actions
Antibiotic peptide. Magainins are positively charged and amphiphatic. Thought to preferentially bind to anionic phospholipids abundant in bacterial membranes with the formation of dynamic peptide-lipid supramolecular pore and cell permeabilization. Binding to artificial neutral membranes has also been demonstrated.