Anti-SPT5/SUPT5H Antibody Picoband®

Transcription elongation factor SPT5 is a protein that in humans is encoded by the SUPT5H gene. Enables enzyme binding activity and protein heterodimerization activity. Involved in positive regulation of macroautophagy; regulation of RNA metabolic process; and transcription elongation from RNA polymerase II promoter. Located in nucleoplasm. Part of DSIF complex.

Vacuolar protein sorting-associated protein 4B; Cell migration-inducing gene 1 protein; Suppressor of K (+) transport growth defect 1; Protein SKD1; VPS4B; SKD1; VPS42; MIG1

Involved in late steps of the endosomal multivesicular bodies (MVB) pathway. Recognizes membrane-associated ESCRT-III assemblies and catalyzes their disassembly, possibly in combination with membrane fission. Redistributes the ESCRT-III components to the cytoplasm for further rounds of MVB sorting. MVBs contain intraluminal vesicles (ILVs) that are generated by invagination and scission from the limiting membrane of the endosome and mostly are delivered to lysosomes enabling degradation of membrane proteins, such as stimulated growth factor receptors, lysosomal enzymes and lipids. In conjunction with the ESCRT machinery also appears to function in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis and enveloped virus budding (HIV-1 and other lentiviruses) . VPS4A/B are required for the exosomal release of SDCBP, CD63 and syndecan.

1. Chiang, P.-W., Fogel, E., Jackson, C. L., Lieuallen, K., Lennon, G., Qu, X., Wang, S.-Q., Kurnit, D. M. Isolation, sequencing, and mapping of the human homologue of the yeast transcription factor, SPT5. Genomics 38: 421-424, 1996. 2. Chiang, P.-W., Stubbs, L., Zhang, L., Kurnit, D. M. Isolation of murine SPT5 homologue: completion of the isolation and characterization of human and murine homologues of yeast chromatin structural protein complex SPT4, SPT5, and SPT6. Genomics 47: 426-428, 1998. 3. Guo, S., Yamaguchi, Y., Schilbach, S., Wada, T., Lee, J., Goddard, A., French, D., Handa, H., Rosenthal, A. A regulator of transcriptional elongation controls vertebrate neuronal development. Nature 408: 366-369, 2000.

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.