|Positive WB detected in||PC-3 cells, C2C12 cell, COLO 320 cells|
|Western Blot (WB)||WB : 1:500-1:1000|
|Sample-dependent, check data in validation data gallery|
The 26584-1-AP immunogen is Fusion Protein SP3 protein expressed in E. coli.
|Tested Reactivity||human, mouse|
|Host / Isotype||Rabbit / IgG|
|Immunogen||SP3 fusion protein Ag25082|
|Full Name||Sp3 transcription factor|
|Calculated molecular weight||781aa,82 kDa|
|Observed molecular weight||70， 115 kDa|
|GenBank accession number||BC126414|
|Gene ID (NCBI)||6670|
|Purification Method||Antigen affinity purification|
|Storage Buffer||PBS with 0.1% sodium azide and 50% glycerol pH 7.3.|
|Storage Conditions||Store at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.|
SP3, also named as transcription factor Sp3, is a 781 amino acid protein, which contains 3 C2H2-type zinc fingers and belongs to the Sp1 C2H2-type zinc-finger protein family. SP3 localizes to the nuclear periphery and in nuclear dots when sumoylated. Some localization in PML nuclear bodies. SP3 is acetylated by histone acetyltransferase p300, deacetylated by HDACs and sumoylated on all isoforms. Sumoylated on 2 sites in longer isoforms with Lys-551 being the major site. Sumoylation at this site promotes nuclear localization to the nuclear periphery, nuclear dots and PML nuclear bodies. Sumoylation on Lys-551 represses the transactivation activity, except for the largest isoform, L-Sp3, which has little effect on transactivation. Alternate sumoylation and acetylation at Lys-551 also control transcriptional activity. There exits tow modified isoform and molecular weight of those are 70 kda and 115 kda.