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{Arg (Me)}

{Tyr (Me)}

{Thr (Me)}

{Ser (Me)}

{Lys (Me) }

{ADMA} {Arg (Me)2}
asymmetrical

{SDMA} {Arg (Me)2}
symmetrical

{Cys (Me)}
SMC

{Lys (Me2)}

{Lys (Me3)}

{L- -2-Me-Trp}

{D-2- -Me-Trp}

{D-Tyr (Et)}

{N-Me-A1a}

{N-Me-Phe}

{N-Me-Leu}

{N-Me-I1e}

{N-Me-Val}

{N-Me - Met}

{N-Me -N1e}

{N-Me- Nva}

{N-Me-G1y}, Sar

{N-Me: -Ser}

{N-Me- Tyr}

{N-Me- Thr}

{N-Me- Asp}

{N-Me-G1u}

Abz/ Tyr (3-N02) Abz

Tyr (3-N02)

Glu (EDANS) -NH2 DABCYL

DABCYL/ Glu (EDANS) -NH2

{D-2-C1-Phe}

{L-2-C1-Phe}

{D- 3-C1-Phe}

{L-3-C1-Phe}

{D-4-C1 -Phe}

{L-4-C1-Phe}

{D-3, 4-DiC1-Phe}

{L-3, 4-DiC1-Phe}

{D-4-Br-Phe}

{L-4-Br-Phe}

{D-3-F-Phe}

{L-3-F-Phe}

{D-4-F-Phe}

{L-4-F-Phe}

{D-4-N02 -Phe}

{L-4-N02 -Phe}

{D-4-I-Phe}

{L-4-I-Phe}

{D-3-CN-Phe}

{L-3-CN-Phe}

{D-4-CN-Phe}

{L-4-CN-Phe}

{D-2- Me- Phe}

{L-2 -Me-Phe}

{D-4-Me-Phe}

{L-4-Me-Phe}

{D-4-NH2-Phe}

{L-4-NH2-Phe}

{D-3-C1-Tyr}

{L-3-C1-Tyr}

{D-3, 5-DiC1-Tyr}

{L-3, 5-DiC1-Tyr}

{D-3,5-DiBr-Tyr}

{L-3, 5-DiBr -Tyr}

{D-3-I-Tyr}

{L-3-I-Tyr}

{D- 3,5-DiI-Tyr}

{L-3,5-DiI-Tyr}

{D-3-NO2-Tyr}

{L-3-NO2-Tyr}

{D-3, 5-DiN02-Tyr}

L-3, 5-DiN02-Tyr}

{Har}，HomoArg

{Hcy}，HomoCys

{HPh}，HomoPhe

{D-HPh}，D-HomoPhe

{Hse}，HomoSer

{D-Hse}，D-HomoSer

{HomoCit}

{D-HomoCit}

{HomoLeu}

{HomoPro}

{D-HomoPro}

{beta-HomoIle}

{beta-HomoLeu}

{beta-HomoMet}

{beta- HomoPro}

{beta-HomoVal}

{beta-HomoAsp}

{beta-HomoAsn}

{beta-HomoGlu}

{beta- HomoG1n}

{beta-HomoSer}

{beta-HomoThr}

{beta- HomoTrp}

{beta-HomoTyr}