Anti-IMPDH1 Antibody Picoband®

Inosine-5'-monophosphate dehydrogenase 1, also known as IMP dehydrogenase 1, is an enzyme that in humans is encoded by the IMPDH1 gene. The protein encoded by this gene acts as a homotetramer to regulate cell growth. The encoded protein is an enzyme that catalyzes the synthesis of xanthine monophosphate (XMP) from inosine-5'-monophosphate (IMP) . This is the rate-limiting step in the de novo synthesis of guanine nucleotides. Defects in this gene are a cause of retinitis pigmentosa type 10 (RP10) . Several transcript variants encoding different isoforms have been found for this gene.

Arrestin is one of the major proteins of the ros (retinal rod outer segments) ; it binds to photoactivated- phosphorylated rhodopsin, thereby apparently preventing the transducin-mediated activation of phosphodiesterase.

1. Aherne, A., Kennan, A., Kenna, P. F., McNally, N., Lloyd, D. G., Alberts, I. L., Kiang, A.-S, , Humphries, M. M., Ayuso, C., Engel, P. C., Gu, J. J., Mitchell, B. S., Farrar, G. J., Humphries, P. On the molecular pathology of neurodegeneration in IMPDH1-based retinitis pigmentosa. Hum. Molec. Genet. 13: 641-650, 2004. 2. Bischof, J. M., Chiang, A. P., Scheetz, T. E., Stone, E. M., Casavant, T. L., Sheffield, V. C., Braun, T. A. Genome-wide identification of pseudogenes capable of disease-causing gene conversion. Hum. Mutat. 27: 545-552, 2006. 3. Bowne, S. J., Sullivan, L. S., Blanton, S. H., Cepko, C. L., Blackshaw, S., Birch, D. G., Hughbanks-Wheaton, D., Heckenlively, J. R., Daiger, S. P. Mutations in the inosine monophosphate dehydrogenase 1 gene (IMPDH1) cause the RP10 form of autosomal dominant retinitis pigmentosa. Hum. Molec. Genet. 11: 559-568, 2002.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.

Nucleus, nucleoplasm . Cytoplasm . Localized in cytoplasmic mRNP granules containing untranslated mRNAs. These granules are not identical with P bodies or stress granules. .