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unknown residue type ERROR MESSEGE



Hi,
I have already written to you about this problem
I have two different problems
1.  
  I got the error messege read_al_375E> Unknown residue type,position,sequence:          1        7
  
  The alignment is with known residue types with no HETATM int the pdb.
  The pdb file exists in the ATOM FILE DIRECTORY.
  Moreover, i got this error messege from running modeller on multipal
  alignment ,but when i ran each of the single alignments seperately 
  i got the output model with NO error.

  Does modeller check for interactions between the structures in 
  the multipal alignment ?
  

2. Some pdb files  like pdb1bb9.ent have their sequence like this

ATOM    153  ND1AHIS    30      24.022  -2.877   3.838  0.75 21.59 N  
ATOM    154  ND1BHIS    30      24.759  -2.618   2.211  0.25 41.12 N  
ATOM    155  CD2AHIS    30      22.589  -1.675   5.037  0.75 17.33 C  
ATOM    156  CD2BHIS    30      26.438  -1.699   3.249  0.25 41.31 C  
ATOM    157  CE1AHIS    30      23.214  -3.720   4.472  0.75 22.03 C  
ATOM    158  CE1BHIS    30      25.847  -3.286   1.875  0.25 41.29 C  
ATOM    159  NE2AHIS    30      22.402  -3.021   5.222  0.75 25.04 N  
ATOM    160  NE2BHIS    30      26.885  -2.754   2.494  0.25 40.59         
 
   modeller does not give output on such templates.
    
Thank you,
Iris.