Biochem/physiol Actions

Heterogeneous nuclear ribonucleoproteins (hnRNPs) play a vital role in generation and processing of RNA, including transcription, splicing, transport and stability. TDP-43 acts as a transcription regulator for human immunodeficiency virus (HIV). Abnormal phosphorylation of TDP-43 at Ser409/410 contributes to the pathology of frontotemporal lobe degeneration subtype (FTLD-U) and amyotrophic lateral sclerosis (ALS).

Disclaimer

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General description

TDP-43 (TAR DNA binding protein, TARDP) is a 414 amino acid nuclear protein and is a member of the heterogenous nuclear ribonucleoproteins (hnRNPs) family that bind single stranded RNA. It is encoded by the gene mapped to human chromosome 1p36.22. The encoded protein belongs to the family of heterogenous nuclear ribonucleoproteins (hnRNPs) that bind single stranded RNA. TDP-43 is ubiquitously expressed and is characterized with two RNA-recognition motifs and a glycine-rich C-terminal region.

Physical form

Solution in 0.01 M phos­phate buffered saline, pH 7.4, containing 15 mM sodium azide.

Specificity

Anti-TDP-43 (C-terminal) specifically recognizes human, mouse, and rat TDP-43.

Storage and Stability

Store at –20 °C. For continuous use, the product may be stored at 2–8 °C for up to one month. For extended storage, freeze in working aliquots at –20 °C. Repeated freezing and thawing, or storage in “frost-free” freezers, is not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours.