(4S)-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S,3S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[[(2S)-2-amino-4-methylsulfanylbutanoyl]amino]-4-oxobutanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-5-carbamimidamidopentanoyl]amino]hexanoyl]amino]-3-methylpentanoyl]amino]-3-methylbutanoyl]amino]hexanoyl]amino]-4-oxobutanoyl]amino]-5-carbamimidamidopentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-carboxypropanoyl]amino]-5-[[(2S)-1-[[(2S,3R)-1-[[(2S)-5-amino-1-[[(2S)-6-amino-1-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-1-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-1-[[(2S)-3-carboxy-1-[[(2S)-3-carboxy-1-(carboxymethylamino)-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]carbamoyl]pyrrolidin-1-yl]-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-1-oxohexan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]amino]-3-carboxy-1-oxopropan-2-yl]amino]-5-oxopentanoic acid

research peptide for biochemical studies