{"product_id":"polr2a-antibody-sc-f1261","title":"Phospho-Rpb1 CTD (Ser7) Antibody","description":"\u003ch2\u003eAbout the Target\u003c\/h2\u003e\u003cp\u003eRNA polymerase II (RNAPII) is a large, multi-subunit enzyme that functions as a DNA-dependent RNA polymerase, facilitating the transcription of DNA into RNA by utilizing four ribonucleoside triphosphates as substrates. The largest subunit, known as Rpb1 or POLR2A, features a unique heptapeptide sequence (Tyr1, Ser2, Pro3, Thr4, Ser5, Pro6, Ser7) that is repeated up to 52 times in its carboxy-terminal domain (CTD). Depending on the literature source, POLR2A may also be discussed as Phospho-Rpb1 CTD (Ser7) and RNA polymerase II subunit B1 (phospho-CTD Ser 7).\u003c\/p\u003e\u003cp\u003eReported cellular context includes chromosome, cytoplasm, dna-directed rna polymerase, and nucleus, which can matter when signal is compared across treatments or changing cell states. Following POLR2A across matched perturbations can help separate abundance effects from shifts in localization, complex assembly, or pathway state.\u003c\/p\u003e\u003ch2\u003eResearch Context\u003c\/h2\u003e\u003cp\u003ePOLR2A is commonly interpreted in the context of epigenetics research, and readouts are often stronger when a study separates expression changes from compartment-level redistribution. When reported signal spans chromosome, cytoplasm, and dna-directed rna polymerase, a defined reference condition can make comparisons more interpretable across perturbations, passages, or replicate sets.\u003c\/p\u003e\u003cp\u003eConsider these angles when interpreting target-level changes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eapparent redistribution between chromosome, cytoplasm, and dna-directed rna polymerase across matched conditions\u003c\/li\u003e\n\u003cli\u003elinks between target behavior and transcriptional or chromatin-state changes\u003c\/li\u003e\n\u003cli\u003edifferences between total target abundance and site-specific regulation when modified forms are compared\u003c\/li\u003e\n\u003cli\u003eco-patterning with orthogonal markers and control conditions that clarify pathway state\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eVariant Considerations\u003c\/h2\u003e\u003cp\u003eIf your project spans exploratory questions, the regular version offers a balanced option for establishing baseline signal behavior for POLR2A. This can help when protocols evolve over time and the goal is to compare experiments using a stable reference workflow.\u003c\/p\u003e\u003cp\u003eStandardize sampling time, control choice, and downstream analysis thresholds so apparent differences in POLR2A reflect biology rather than handling. When interpreting POLR2A, it is often useful to decide early whether the main question is overall abundance, compartmental enrichment, or context-dependent redistribution.\u003c\/p\u003e\u003cp\u003eFor multi-run studies, a shared reference condition can keep POLR2A trends easier to compare across datasets. That kind of consistency is especially helpful when follow-up work expands to new perturbations, model systems, or longitudinal collections.\u003c\/p\u003e","brand":"Selleck Chemicals","offers":[{"title":"20 µl","offer_id":57577673883993,"sku":"F1261-20UL","price":169.0,"currency_code":"EUR","in_stock":true},{"title":"100 µl","offer_id":57577673916761,"sku":"F1261-100UL","price":389.0,"currency_code":"EUR","in_stock":true},{"title":"2 × 100 µl","offer_id":57577673949529,"sku":"F1261-2X100UL","price":579.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/1011\/0553\/files\/F1261-wb.gif?v=1773599507","url":"https:\/\/absource-diagnostics.myshopify.com\/products\/polr2a-antibody-sc-f1261","provider":"Absource Diagnostics","version":"1.0","type":"link"}