PDBx/mmCIF
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Data Item
_exptl_crystal_grow.pH
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General
Item name
_exptl_crystal_grow.pH
Category name
exptl_crystal_grow
Attribute name
pH
Required in PDB entries
no
Used in current PDB entries
Yes, in about 63.4 % of entries
Item Description
The pH at which the crystal was grown. If more than one pH was employed during the crystallization process, the final pH should be noted here and the protocol involving multiple pH values should be described in _exptl_crystal_grow.details.
Item Examples
3
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Item Example1
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7.4
Item Example2
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7.6
Item Example3
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4.3
Data Type
Data type code
float
Data type detail
float 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]+)?
Allowed Boundary Conditions
Minimum Value
Maximum Value
0.0
+∞