The sex chromosome present in both sexes of species in which the male is the heterogametic sex. Two copies of the X chromosome are present in each somatic cell of females and one copy is present in males.

The sex chromosome present in males of species in which the male is the heterogametic sex; generally, the sex chromosome that pairs with the X chromosome in the heterogametic sex. The Y chromosome is absent from the cells of females and present in one copy in the somatic cells of males.

An intracellular membrane-bound particle found in fungi and containing chitin synthase; it synthesizes chitin microfibrils. Chitin synthase activity exists in chitosomes and they are proposed to act as a reservoir for regulated transport of chitin synthase enzymes to the division septum.

origin of replication recognition complex

A multisubunit complex that is located at the replication origins of a chromosome.

Any process that modulates the frequency, rate or extent of bone mineralization.

positive regulation of bone mineralization

Any process that activates or increases the rate, frequency or extent of bone mineralization.

negative regulation of bone mineralization

Any process that stops, prevents or reduces the rate, frequency or extent of bone mineralization.

Any process that modulates the redox environment of a cell or compartment within a cell.

Catalysis of the transfer of inorganic diphosphate across a membrane.

Interacting selectively with ankyrin, a 200 kDa cytoskeletal protein that attaches other cytoskeletal proteins to integral membrane proteins.

Interacting selectively with spectrin, a protein that is the major constituent of the erythrocyte cytoskeletal network. It associates with band 4.1 (see band protein) and actin to form the cytoskeletal superstructure of the erythrocyte plasma membrane. It is composed of nonhomologous chains, alpha and beta, which aggregate side-to-side in an antiparallel fashion to form dimers, tetramers, and higher polymers.

Functions as an exchange intermediate in thiol-disulfide exchange reactions.