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Category:GO:0019833 ! ice nucleation activity
This GO term has been obsoleted.
Do not annotate to it.
id: GO:0019833
name: ice nucleation activity
namespace: molecular_function
def: "OBSOLETE. Catalysis of the formation of ice crystals in extracellular fluid at relatively high temperatures (up to -2 degrees C) to protect the organism from damage by intracellular ice formation. Ice nucleation proteins function by binding an ice crystal and then encouraging it to form larger crystals. Ice nucleation is a chemical process but these proteins can positively regulate it. There are two different uses of ice nucleation proteins: bacteria secrete them extracellularly to cause a host organism's cells to freeze and die, and fish use them to protect themselves from intracellular ice formation." [GOC:ai, GOC:jl]
comment: This term was made obsolete because it represents a biological process.
is_obsolete: true
replaced_by: GO:0009405 ! pathogenesis
replaced_by: GO:0042309 ! homoiothermy
replaced_by: GO:0050825 ! ice binding
AmiGO
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