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Data Item _exptl_crystal.density_Matthews

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General

Item name
_exptl_crystal.density_Matthews
Category name
exptl_crystal
Attribute name
density_Matthews
Required in PDB entries
Used in current PDB entries
Yes, in about 83.3 % of entries

Item Description

The density of the crystal, expressed as the ratio of the volume of the asymmetric unit to the molecular mass of a monomer of the structure, in units of angstroms3 per dalton. Ref: Matthews, B. W. (1960). J. Mol. Biol., 33, 491-497

Additional Descriptive Information for Depositors 

 
               The density of the crystal, expressed as the ratio 
               of the volume of the asymmetric unit to the molecular 
               mass of a monomer of the structure, in units of 
               angstroms^3^ per dalton. Ref: Matthews B. W. (1960). 
               J. Mol. Biol., 33, 491-497

Data Type

Data type code
float
Data type detail
int item types are the subset of numbers that are the floating numbers.
Primitive data type code
numb
Regular expression
-?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?