typedef struct pdbSecondaryStructureHelix {
int serNum;
char* helixID;
char* initResName;
char initChainID;
int initSeqNum;
char initICode;
char* endResName;
char endChainID;
int endSeqNum;
char endICode;
pdbSecondaryStructureHelixClass helixClass;
char* comment;
int length;
} pdbSecondaryStructureHelix;