background:
Ago1 belongs to the argonaute family and contains 1 PAZ and 1 Piwi domain. It is required for G1 arrest and mating in response to nitrogen starvation. It is also known as cell cycle control protein through it's regulation of cytokinesis and cell cycle checkpoints occurs downstream of dcr1. It is required, indirectly, for regulated hyperphosphorylation of cdc2. Ago 1 also has a role in the RNA interference (RNAi) pathway which is important for heterochromatin formation and accurate chromosome segregation. It has been shown to be non-essential for siRNA-directed target RNA cleavage but is needed for the production of mature miRNA that affects miRNA-directed RNA cleavage.
Function:
Required for RNA-mediated gene silencing (RNAi). Binds to short RNAs such as microRNAs (miRNAs) or short interfering RNAs (siRNAs), and represses the translation of mRNAs which are complementary to them. Lacks endonuclease activity and does not appear to cleave target mRNAs. Also required for transcriptional gene silencing (TGS) of promoter regions which are complementary to bound short antigene RNAs (agRNAs).
Subunit:
Interacts with DDB1, DDX5, DDX6, DHX30, DHX36, DDX47, DICER1, EIF2C2/AGO2, ELAVL1, HNRNPF, IGF2BP1, ILF3, IMP8, MATR3, MOV10, PABPC1, PRMT5, RBM4, SART3, TNRC6B, UPF1 and YBX1. Associates with polysomes and messenger ribonucleoproteins (mNRPs). Interacts with LIMD1, WTIP and AJUBA.
Subcellular Location:
Cytoplasm, P-body.
Similarity:
Belongs to the argonaute family. Ago subfamily.
Contains 1 PAZ domain.
Contains 1 Piwi domain.
Database links:
UniProtKB/Swiss-Prot: Q9UL18.3 human
NCBI Reference Sequence: NP_725341.1 fruit fly
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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