[gmx-users] Assistance required for ligand parameterization

[Balasubramani GL]

Hi Everyone, 

 when i am trying to generate a parameter for ligand using PRODRG. I am
getting this warning message. is as follows: 

PRODRG> WARNING: Multiplicity of generated molecule is not 1. 

These are my ligand coordinates:

ATOM 9 NZ LLP X 41 1.600 15.385 12.517 1.00 24.01 N 
ATOM 10 P LLP X 41 4.423 17.845 15.699 1.00 19.86 P 
ATOM 11 O1P LLP X 41 3.370 18.251 14.761 1.00 19.85 O 
ATOM 12 O2P LLP X 41 5.576 18.756 15.639 1.00 19.16 O 
ATOM 13 O3P LLP X 41 3.850 17.679 17.051 1.00 21.16 O 
ATOM 14 O4P LLP X 41 4.941 16.452 15.109 1.00 20.62 O 
ATOM 15 N1 LLP X 41 6.254 13.453 11.662 1.00 23.14 N 
ATOM 16 C2 LLP X 41 4.996 13.033 11.235 1.00 25.17 C 
ATOM 17 C2A LLP X 41 4.873 11.843 10.309 1.00 20.91 C 
ATOM 18 C3 LLP X 41 3.859 13.719 11.685 1.00 24.66 C 
ATOM 19 O3 LLP X 41 2.735 13.314 11.354 1.00 19.33 O 
ATOM 20 C4 LLP X 41 4.005 14.826 12.559 1.00 19.54 C 
ATOM 21 C4A LLP X 41 2.812 15.599 13.054 1.00 21.86 C 
ATOM 22 C5 LLP X 41 5.298 15.201 12.960 1.00 22.65 C 
ATOM 23 C5A LLP X 41 5.578 16.373 13.831 1.00 18.84 C 
ATOM 24 C6 LLP X 41 6.423 14.512 12.530 1.00 23.84 C 
END 

can anyone tell me how to fix this problem. Your help is highly
appreciated.

-- 
Thanks & Regards, 

G.L.Balasubramani
(Project-JRF),
c/o.Dr.S.Kumaran,
Structural & Quatitative Biology Lab, GNRPC,
Institute of Microbial Technology (CSIR),
Sector 39-A, Chandigarh, India-160036.
ph : +91-9876086625/9041280408 
off : 0172-6665475

-- 
Thanks & Regards, 

G.L.Balasubramani
(Project-JRF),
c/o.Dr.S.Kumaran,
Structural & Quatitative Biology Lab, GNRPC,
Institute of Microbial Technology (CSIR),
Sector 39-A, Chandigarh, India-160036.
ph : +91-9876086625/9041280408 
off : 0172-6665475

-- 
Thanks & Regards, 

G.L.Balasubramani
(Project-JRF),
c/o.Dr.S.Kumaran,
Structural & Quatitative Biology Lab, GNRPC,
Institute of Microbial Technology (CSIR),
Sector 39-A, Chandigarh, India-160036.
ph : +91-9876086625/9041280408 
off : 0172-6665475