Protein function: Serine/threonine-protein kinase that phosphorylates histone H3 at 'Thr-3' (H3T3ph) during mitosis. This positions and activates AURKB and other components of the chromosomal passenger complex (CPC) at centromeres to ensure proper chromatid cohesion, metaphase alignment and normal progression through the cell cycle. [The UniProt Consortium]
synthetic peptide. The epitope recognized by IHC-00671 maps to a region between residue 300 and 350 of human serine/threonine-protein kinase Haspin (germ cell-specific gene 2) using the numbering given in entry NP_114171.2 (GeneID 83903).