Anti-COBRA1, ID (COBRA1, KIAA1182, NELFB, Negative elongation factor B, Cofactor of BRCA1)

NELFB is a subunit of negative elongation factor (NELF), which also includes NELFA (WHSC2, MIM 606026), either NELFC or NELFD (TH1L, MIM 605297), and NELFE (RDBP, MIM 154040). NELF acts with DRB sensitivity-inducing factor (DSIF), a heterodimer of SPT4 (SUPT4H1, MIM 603555) and SPT5 (SUPT5H, MIM 602102), to cause transcriptional pausing of RNA polymerase II (see MIM 180660) (Narita et al., 2003 [PubMed 12612062]). Applications: Suitable for use in Western Blot and ELISA. Other applications have not been tested. Recommended Dilution: Western Blot: 1:1000, Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.