Chain identifier should be blank not L: ATOM   4808 ZN    ZN L 300       7.144  18.099  14.291  0.80 42.06      L   ZN  
Chain identifier should be blank not H: ATOM   4809 ZN    ZN H 301      16.495 -10.785  18.841  1.00 29.36      H   ZN  
Chain identifier should be blank not H: ATOM   4810 ZN    ZN H 302      13.144 -16.140  20.611  1.28 81.46      H   ZN  

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