caution:It is uncertain whether Met-1 or Met-54 is the initiator.,cofactor:Binds calcium.,developmental stage:Strongly up-regulated in K562 cells treated by PMA to promote megakaryocytic differentiation, but not when treated by DMSO to promote granulocytic differentiation or by hemin to promote erythroid differentiation (at protein level).,function:Essential for the coupling of ERK cascade activation with the expression of ETS family genes in megakaryocytic differentiation.,similarity:Contains 1 EF-hand domain.,subunit:Interacts with Sodium/hydrogen exchanger 1 (SLC9A1).,tissue specificity:Abundantly expressed in heart.,
Nucleus . Cytoplasm . Membrane ; Lipid-anchor . Cell membrane . Cell projection, lamellipodium . Cell projection, ruffle membrane . Colocalizes with SLC9A1 at the plasma membrane. .
Expressed in mature megakaryocytes and polymorphonuclear granulocytes (at protein level). Abundantly expressed in heart. Also expressed at a lower level in adult testis and salivary gland, and in the placenta.
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