1 OAR N-(4-amino-5-hydroxy-pentyl)-guanidine 1.000 2 RGL Arginal 1.000 3 4VI (2z,4e)-5-carbamimidamido-2-iminopent-4-enoic acid 0.917 4 AAR Arginineamide 0.917 5 AR7 Amino{[(4s)-4-amino-5,5-dihydroxypentyl]amino}methaniminium 0.917 6 ARG Arginine 0.917 7 ARM Deoxy-methyl-arginine 0.917 8 DAR D-arginine 0.917 9 GND 2-amino-5-guanidino-pentanoic acid 0.917 10 IAR (2e)-5-[(diaminomethylidene)amino]-2-iminopentanoic acid 0.917 11 4D4 (2s,3r)-2-azanyl-5-carbamimidamido-3-oxidanyl-pentanoic acid 0.846 12 AGM 5-methyl-arginine 0.846 13 AHL N-hydroxy-L-argininamide 0.846 14 ARO C-gamma-hydroxy arginine 0.846 15 WYK (2s,4s)-4-hydroxy-L-arginine 0.846 16 ZZU (2s,3s)-3-hydroxyarginine 0.846 17 GVA 5-{[amino(imino)methyl]amino}pentanoic acid 0.833 18 AG2 Agmatine 0.818 19 0MG Amino{[(4s)-4-amino-5-carboxy-5-oxopentyl]amino}methaniminium 0.786 20 2OR Amino{[(2r,3r,4s)-4-amino-2,3,5-trihydroxy-5-oxopentyl]amino}methaniminium 0.786 21 CIR Citrulline 0.769 22 ILO N5-iminoethyl-L-ornithine 0.769 23 JX7 5-carbamimidamido-2-oxopentanoic acid 0.769 24 NWG 5-[(diaminomethylidene)amino]-2-oxopentanoic acid 0.769 25 SCI L-thiocitrulline 0.769 26 M9P Amino{[(4s,5s)-4-amino-6,6,6-trifluoro-5-hydroxyhexyl]amino}methaniminium 0.733 27 4JK (S)-2-amino-5-(2-hydroxyacetimidamido)pentanoic acid 0.714 28 EGV (4s)-5-carbamimidamido-4-hydroxy-2-oxopentanoic acid 0.714 29 FIO N~5~-[(1e)-2-fluoroethanimidoyl]-L-ornithine 0.714 30 HAR N-omega-hydroxy-L-arginine 0.714 31 HMR Beta-homoarginine 0.714 32 HR7 (3s)-3-amino-6-[(diaminomethylidene)amino]hexanoic acid 0.714 33 L06 5-{[amino(imino)methyl]amino}-2-(sulfanylmethyl)pentanoic acid 0.714 34 LN5 N5-(1-iminopropyl)-L-ornithine 0.714 35 MMO N~2~-methyl-L-arginine 0.714 36 NMM (2s)-2-amino-5-[(N-methylcarbamimidoyl)amino]pentanoic acid 0.714 37 SMZ N~5~-[(E)-imino(methylsulfanyl)methyl]-L-ornithine 0.714 38 VUR (S)-2-amino-5-(2-mercaptoacetimidamido)pentanoic acid 0.714 39 WT2 (S)-2-amino-5-(2-oxoacetimidamido)pentanoic acid 0.714