Anti-Histidine decarboxylase/HDC Antibody Picoband® Fluoro647 Conjugated

HDC (Histidine decarboxylase) is the enzyme that catalyzes the reaction that produces histamine from histidine with the help of vitamin B6. The HDC gene is mapped on 15q21.2. The deduced 662-amino acid protein has a molecular mass of 74,148 Da. The gene contains 12 exons spanning approximately 24 kb. The biogenic amine histamine is an important modulator of numerous physiologic processes, including neurotransmission, gastric acid secretion, and smooth muscle tone. The biosynthesis of histamine from histidine is catalyzed by the enzyme L-histidine decarboxylase. This homodimeric enzyme is a pyridoxal phosphate (PLP) -dependent decarboxylase and is highly specific for its histidine substrate. Ercan-Sencicek et al. noted that animal studies had shown that lack of Hdc in mice results in increased locomotor and stereotypic behaviors, as well as increased anxiety.

Isoform 1 and isoform 2 are expressed in liver, colon and small intestine. Isoform 2 but not isoform 1 is expressed in kidney. Isoform 1 and isoform 2 are not expressed in esophagus. Not expressed in skin.

This protein is associated with nerve growth. It is a major component of the motile 'growth cones' that form the tips of elongating axons. Plays a role in axonal and dendritic filopodia induction.

1. Bruneau, G., Nguyen, V. C., Gros, F., Bernheim, A., Thibault, J. Preparation of a rat brain histidine decarboxylase (HDC) cDNA probe by PCR and assignment of the human HDC gene to chromosome 15. Hum. Genet. 90: 235-238, 1992. 2. Dere, E., De Souza-Silva, M. A., Spieler, R. E., Lin, J. S., Ohtsu, H., Haas, H. L., Huston, J. P. Changes in motoric, exploratory and emotional behaviours and neuronal acetylcholine content and 5-HT turnover in histidine decarboxylase-KO mice.Europ. J. Neurosci. 20: 1051-1058, 2004. 3. Ercan-Sencicek, A. G., Stillman, A. A., Ghosh, A. K., Bilguvar, K., O'Roak, B. J., Mason, C. E., Abbott, T., Gupta, A., King, R. A., Pauls, D. L., Tischfield, J. A., Heiman, G. A., and 16 others. L-histidine decarboxylase and Tourette's syndrome. New Eng. J. Med. 362: 1901-1908, 2010.

Cell membrane. Peripheral membrane protein. Cytoplasmic side. Growth cone membrane. Filopodium membrane. Synapse. Perikaryon. Dendrite. Axon. Cytoplasm.