CD34 Human Recombinant Protein

The protein encoded by this gene may play a role in the attachment of stem cells to the bone marrow extracellular matrix or to stromal cells. This single-pass membrane protein is highly glycosylated and phosphorylated by protein kinase C. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

CD34: Possible adhesion molecule with a role in early hematopoiesis by mediating the attachment of stem cells to the bone marrow extracellular matrix or directly to stromal cells. Could act as a scaffold for the attachment of lineage specific glycans, allowing stem cells to bind to lectins expressed by stromal cells or other marrow components. Presents carbohydrate ligands to selectins. Selectively expressed on hematopoietic progenitor cells and the small vessel endothelium of a variety of tissues. Belongs to the CD34 family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Cell surface; Membrane protein, integral

Chromosomal Location of Human Ortholog: 1q32

Cellular Component: intercellular bridge; perinuclear region of cytoplasm; lysosome; integral to plasma membrane; cytoplasm; apical plasma membrane; basal plasma membrane; plasma membrane; external side of plasma membrane

Molecular Function: sulfate binding; carbohydrate binding; transcription factor binding

Biological Process: positive regulation of odontogenesis; cell proliferation; positive regulation of angiogenesis; cell-cell adhesion; regulation of immune response; negative regulation of nitric oxide biosynthetic process; endothelial cell proliferation; regulation of blood pressure; glomerular filtration; cell motility involved in cell locomotion; tissue homeostasis; negative regulation of blood coagulation; hemopoiesis; negative regulation of tumor necrosis factor production; signal transduction; leukocyte migration; positive regulation of interleukin-10 production