StrandConnection

This class defines the connection between two strands in the same beta sheet.

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Class Summary

class StrandConnection
{

public:

	// Constructors
	StrandConnection();
	StrandConnection(const char curAtomId, const int curResSeq, const char prevAtomId, const int prevResSeq);
	StrandConnection(const StrandConnection& stcn);
explicit	StrandConnection(const char* const PDBrec);
Vector3	connectionDirection(const Molecule< Particle>& mol) const;

	// Data members information
ConnectEnd	currEnd() const;
ConnectEnd	prevEnd() const;

	// Boolean Operation
bool	operator==(const StrandConnection& stcn);
bool	isEmpty() const;
friend ostream&	operator<<(ostream& s, const StrandConnection& stcn);
protected:

}; // StrandConnection

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KEWORDS

strand, connection, sheet, nytrogen group, hydrogen bonding

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AUTHORS

Zipi Fligelamn (zipo@math.tau.ac.il)

Copyright: SAMBA group, Tel-Aviv Univ. Israel, 1999.

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CHANGES LOG

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GOALS

Since class defines the connection between two strands in the same beta sheet. The connection is defined from strand n to strand n-1 in the sheet. Thus the first defined strand cannot have a connection information, thus it defines an empty StrandConnection. The connection is specified by one hydrogen bond between each such pair of strand. This is done by providing thew hydrogen bonding between the current and the previous strands.

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USAGE

to be used only in the context of a full sheet

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StrandConnection();

Empty Constructor

  StrandConnection();

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StrandConnection(const char curAtomId, const int curResSeq, const char prevAtomId, const int prevResSeq);

Regular Constructor holding all the appropriate infromation

  StrandConnection(const char curAtomId, const int curResSeq,
                   const char prevAtomId, const int prevResSeq);

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StrandConnection(const StrandConnection& stcn);

Copy constructor

  StrandConnection(const StrandConnection& stcn);

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explicit StrandConnection(const char* const PDBrec);

Constructor from the appropriate PDB Line

  explicit StrandConnection(const char* const PDBrec);

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Vector3 connectionDirection(const Molecule< Particle>& mol) const;

Given an appropriate Molecules that was read from the same pdb file will return a normed vector of the connection direction. The direction is always defined from the previous strand to the current strand

  Vector3 connectionDirection(const Molecule< Particle>& mol) const;

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ConnectEnd currEnd() const;

the atom number and chain defining the connection on the current strand in the sheet

  inline ConnectEnd currEnd() const;

Function is currently defined inline.

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ConnectEnd prevEnd() const;

the atom number and chain defining the connection on the previous strand in the sheet

  inline ConnectEnd prevEnd() const;

Function is currently defined inline.

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bool operator==(const StrandConnection& stcn);

Equality operator

  bool operator==(const StrandConnection& stcn);

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bool isEmpty() const;

An indication that this connection was started from a first strand in the sheet PDB record

  bool isEmpty() const;

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friend ostream& operator<<(ostream& s, const StrandConnection& stcn);

Ostream operator for various puproses notice the atoms apper in the following way (type of atom , RESIDUE number) there is no atom number only the residue number this atom belongs to.

  friend ostream& operator<<(ostream& s, const StrandConnection& stcn);

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All Members

public:

	// Constructors
explicit	StrandConnection(const char* const PDBrec);
Vector3	connectionDirection(const Molecule< Particle>& mol) const;

	// Data members information
ConnectEnd	currEnd() const;
ConnectEnd	prevEnd() const;

	// Boolean Operation
bool	operator==(const StrandConnection& stcn);
bool	isEmpty() const;
friend ostream&	operator<<(ostream& s, const StrandConnection& stcn);
protected:

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Ancestors

Class does not inherit from any other class.

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Descendants

Class is not inherited by any others.

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