Structure based on 1k1p

Ideal structure
Name: [((1r)-2-{(2s)-2-[({4-[amino(imino)methyl]benzyl}amino)carbonyl]azetidinyl}-1-cyclohexyl-2-oxoethyl)amino]acetic acid
Formula: C22 H31 N5 O4
Weight: 429.513
SMILES: "NC(=N)c1ccc(CNC(=O)[CH]2CCN2C(=O)[CH](NCC(O)=O)C3CCCCC3)cc1"
Spacial conformation based on PDB 1k1p.
Also present on 1k22, 4bah
RESIDUE   MEL     62
CONECT      C1     4 C2   C6   C8   H11 
CONECT      C2     4 C1   C3   H21  H22 
CONECT      C3     4 C2   C4   H31  H32 
CONECT      C4     4 C3   C5   H41  H42 
CONECT      C5     4 C4   C6   H51  H52 
CONECT      C6     4 C1   C5   H61  H62 
CONECT      N7     3 C8   C28  H71 
CONECT      C8     4 C1   N7   C9   H81 
CONECT      C9     3 C8   O0   N11 
CONECT      O0     1 C9  
CONECT      N11    3 C9   C12  C27 
CONECT      C12    4 N11  C13  C26  H121
CONECT      C13    3 C12  O14  N15 
CONECT      O14    1 C13 
CONECT      N15    3 C13  C16  H151
CONECT      C16    4 N15  C17  H161 H162
CONECT      C17    3 C16  C18  C22 
CONECT      C18    3 C17  C19  H181
CONECT      C19    3 C18  C20  H191
CONECT      C20    3 C19  C21  C23 
CONECT      C21    3 C20  C22  H211
CONECT      C22    3 C17  C21  H221
CONECT      C23    3 C20  N24  N25 
CONECT      N24    2 C23  H241
CONECT      N25    3 C23  H251 H252
CONECT      C26    4 C12  C27  H261 H262
CONECT      C27    4 N11  C26  H271 H272
CONECT      C28    4 N7   C29  H281 H282
CONECT      C29    3 C28  O30  O31 
CONECT      O30    2 C29  H301
CONECT      O31    1 C29 
CONECT      H11    1 C1  
CONECT      H21    1 C2  
CONECT      H22    1 C2  
CONECT      H31    1 C3  
CONECT      H32    1 C3  
CONECT      H41    1 C4  
CONECT      H42    1 C4  
CONECT      H51    1 C5  
CONECT      H52    1 C5  
CONECT      H61    1 C6  
CONECT      H62    1 C6  
CONECT      H71    1 N7  
CONECT      H81    1 C8  
CONECT      H121   1 C12 
CONECT      H151   1 N15 
CONECT      H161   1 C16 
CONECT      H162   1 C16 
CONECT      H181   1 C18 
CONECT      H191   1 C19 
CONECT      H211   1 C21 
CONECT      H221   1 C22 
CONECT      H241   1 N24 
CONECT      H251   1 N25 
CONECT      H252   1 N25 
CONECT      H261   1 C26 
CONECT      H262   1 C26 
CONECT      H271   1 C27 
CONECT      H272   1 C27 
CONECT      H281   1 C28 
CONECT      H282   1 C28 
CONECT      H301   1 O30 
END   
HET    MEL             62
HETSYN     MEL MELAGATRAN (ASTRA-ZENECA)
HETNAM     MEL [((1R)-2-{(2S)-2-[({4-[AMINO(IMINO)METHYL]BENZYL}AMINO)
HETNAM   2 MEL CARBONYL]AZETIDINYL}-1-CYCLOHEXYL-2-OXOETHYL)AMINO]ACET
HETNAM   3 MEL IC ACID
FORMUL      MEL    C22 H31 N5 O4

This OCA MONOMER page
uses Jmol, developed by the Jmol Development Team (color reference)
OCA© by Jaime Prilusky, 1996-2004,2006,2010,2014
Bioinformatics Unit
Weizmann Institute of Science