Journal: The Journal of Biological Chemistry
Article Title: Cancer-relevant Splicing Factor CAPERα Engages the Essential Splicing Factor SF3b155 in a Specific Ternary Complex *
doi: 10.1074/jbc.M114.558825
Figure Lengend Snippet: Domains of UHM and ULM-containing proteins relevant to this study. A, human CAPERα (NCBI RefSeq NP_004893) compared with human paralogues CAPERβ (NP_060577), U2AF65 (NP_009210), Puf60 (NP_001258027), and SPF45 (NP_001139019). B, human ULM-containing splicing factors SF1 (NP_004621) and SF3b155 (NP_036565). Circled P, phosphorylated SF1 SPSP motif. HEAT, helical repeats; KH-QUA2, K-Homology Quaking-Homology-2; RS, arginine-serine-rich; RRM, RNA recognition motif (blue); UHM, U2AF homology motif (cyan); ULM, U2AF ligand motif (magenta); Zn, zinc knuckle. Sequence boundaries of domains relevant to this study and the residue numbers of C termini are indicated above. C, ULM “consensus” compared with known sequences of human splicing factor ULMs. ULM tryptophans are highlighted in yellow.
Article Snippet: For experiments with cell extracts, bound proteins were analyzed by SDS-PAGE and immunoblotting with anti-U2AF 65 (mouse mAb, clone MC3; Sigma), anti-CAPERα (mouse mAb P14; Santa Cruz), and anti-GST (mouse mAb B14; Santa Cruz Biotechnology).
Techniques: Sequencing