Sökning: "DNA ligase I"

Visar resultat 1 - 5 av 23 avhandlingar innehållade orden DNA ligase I.

  1. 1. Structure of eukaryotic DNA polymerase epsilon and lesion bypass capability

    Författare :Nasim Sabouri; Erik Johansson; Lars Thelander; Ola Hammarsten; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DNA polymerase epsilon; DNA replication; Okazaki fragment; Translesion synthesis; DNA lesion; dNTP; Biochemistry; Biokemi;

    Sammanfattning : To transfer the information in the genome from mother cell to daughter cell, the DNA replication must be carried out only once and with very high fidelity prior to every cell division. In yeast there are several different DNA polymerases involved in DNA replication and/or DNA repair. LÄS MER

  3. 2. Markers predicting sensitivity to polyamine depletion in human breast cancer cell lines

    Författare :Veronica Johansson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PCNA; PAO; human breast cancer cell lines; FEN1; DNA strand breaks; DNA ligase I; apoptosis; Bcl-2; polyamine analogues; pRb;

    Sammanfattning : In spite of different treatment strategies today, breast cancer mortality is still high and new treatments are therefore needed. Potential new treatments can be found among the polyamine analogues. Polyamine analogues can be used in cancer treatment as cancer cells have a higher requirement for polyamines than the surrounding healthy tissue. LÄS MER

  4. 3. Unwrapping the role of WRAP53β in DNA damage response

    Författare :Hanif Rassoolzadeh; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : WRAP53β is a WD40 domain protein with multifaceted capabilities in several biological processes in different cellular compartments. This includes transportation of the Survival of motor neuron (SMN) complex, small Cajal body-specific (sca) RNAs and the telomerase enzyme to Cajal bodies, as well as targeting of the E3 ligase RNF8 to DNA double-strand breaks (DSBs). LÄS MER

  5. 4. WRAP53β and scaRNA2 on their journey to repair the DNA

    Författare :Christos Coucoravas; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : WRAP53β is a multifunctional protein involved in several cellular processes like Cajal body formation, telomere maintenance and DNA repair. WRAP53β is responsible for targeting factors to specific cellular locations, and its very high affinity for the scaRNAs could implicate these molecules in similar biological functions. LÄS MER

  7. 5. Regulation of TGF-β Signaling by Post-Translational Modifications

    Författare :Peter Lönn; Aristidis Moustakas; Carl-Henrik Heldin; Petra Knaus; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TGF-β; Smad; PARP-1; PARG; ALK5; SIK; signal transduction; transcription; post-translational modification; phosphorylation; ubiquitin; ADP-ribosylation; DNA-binding; receptor degradation; Cell and molecular biology; Cell- och molekylärbiologi; Biology with specialization in Molecular Cell Biology; Biologi med inriktning mot molekylär cellbiologi;

    Sammanfattning : Transforming growth factor-β (TGF-β) signaling is initiated when the ligand binds to type II and type I serine/threonine kinase receptors at the cell surface. Activated TGF-β type I receptors phosphorylate R-Smads which relocate, together with co-Smads, to the cell nucleus and regulate transcription. LÄS MER