Anti-ADAMTS5 Antibody Picoband®, APC Conjugate

ADAMTS5 (A Disintegrin-Like and Metalloproteinase with Thrombospondin Type 1 Motif, 5), is an enzyme that in humans is encoded by the ADAMTS5 gene. ADAMTS5 is a member of the large ADAMTS family of zinc-dependent proteases. The enzyme encoded by this gene contains two C-terminal TS motifs and functions as aggrecanase to cleave aggrecan, a major proteoglycan of cartilage. By somatic cell hybrid analysis, the human ADAMTS5 gene is mapped to chromosome 21. Used mouse models, it is showed that Sdc4 controls a pathway that activates Adamts5 at the chondrocyte cell surface through Erk1/Erk2 activation of Mmp3.

Isoform 2 is undetectable whereas isoform 1 is strongly expressed in cancer cells (at protein level). Isoform 1 and isoform 2 are widely expressed, including heart, brain, lung, pancreas, skeletal muscle, kidney, placenta and liver. .

May play a role in a ERBB3-regulated signal transduction pathway. Seems be involved in growth regulation. Acts a corepressor of the androgen receptor (AR) and is regulated by the ERBB3 ligand neuregulin-1/heregulin (HRG). Inhibits transcription of some E2F1-regulated promoters, probably by recruiting histone acetylase (HAT) activity. Binds RNA. Associates with 28S, 18S and 5.8S mature rRNAs, several rRNA precursors and probably U3 small nucleolar RNA. May be involved in regulation of intermediate and late steps of rRNA processing. May be involved in ribosome assembly. Mediates cap-independent translation of specific viral IRESs (internal ribosomal entry site) (By similarity). Regulates cell proliferation, differentiation, and survival. Isoform 1 suppresses apoptosis whereas isoform 2 promotes cell differentiation (By similarity). .

1. Echtermeyer, F., Bertrand, J., Dreier, R., Meinecke, I., Neugebauer, K., Fuerst, M., Lee, Y. J., Song, Y. W., Herzog, C., Theilmeier, G., Pap, T. Syndecan-4 regulates ADAMTS-5 activation and cartilage breakdown in osteoarthritis. Nature Med. 15: 1072-1076, 2009. 2. Glasson, S. S., Askew, R., Sheppard, B., Carito, B., Blanchet, T., Ma, H.-L., Flannery, C. R., Peluso, D., Kanki, K., Yang, Z., Majumdar, M. K., Morris, E. A. Deletion of active ADAMTS5 prevents cartilage degradation in a murine model of osteoarthritis. Nature 434: 644-648, 2005. Note: Erratum: Nature 446: 102 only, 2007. 3. Hurskainen, T. L., Hirohata, S., Seldin, M. F., Apte, S. S. ADAM-TS5, ADAM-TS6, and ADAM-TS7, novel members of a new family of zinc metalloproteases: general features and genomic distribution of the ADAM-TS family. J. Biol. Chem. 274: 25555-25563, 1999.

Store at -20℃ for one year from date of receipt. After reconstitution, at 4℃ for one month. It can also be aliquotted and stored frozen at -20℃ for six months. Avoid repeated freeze-thaw cycles.

Isoform 1: Cytoplasm . Nucleus, nucleolus . Tranlocates to the nucleus upon treatment with HRG. Phosphorylation at Ser-361 by PKC/PRKCD regulates its nucleolar localization. .