• Crystal and solution structures reveal oligomerization of individual capsid homology domains of Drosophila Arc 

      Hallin, Erik Ingmar; Markusson, Sigurbjörn; Bottger, Lev; Torda, Andrew E.; Bramham, Clive Raymond Evjen; Kursula, Petri (Journal article; Peer reviewed, 2021)
      Synaptic plasticity is vital for brain function and memory formation. One of the key proteins in long-term synaptic plasticity and memory is the activity-regulated cytoskeleton-associated protein (Arc). Mammalian Arc forms ...
    • Development and Validation of Arc Nanobodies: New Tools for Probing Arc Dynamics and Function 

      Ishizuka, Yuta; Mergiya, Tadiwos Feyissa; Baldinotti, Rodolfo Da Silva Mazzarini; Xu, Ju; Hallin, Erik Ingmar; Markusson, Sigurbjörn; Kursula, Petri; Bramham, Clive Raymond Evjen (Journal article; Peer reviewed, 2022)
      Activity-regulated cytoskeleton-associated (Arc) protein plays key roles in long-term synaptic plasticity, memory, and cognitive flexibility. However, an integral understanding of Arc mechanisms is lacking. Arc is proposed ...
    • High-affinity anti-Arc nanobodies provide tools for structural and functional studies 

      Markusson, Sigurbjörn; Hallin, Erik Ingmar; Bustad, Helene J.; Raasakka, Arne; Xu, Ju; Muruganandam, Gopinath; Loris, Remy; Martinez, Aurora; Bramham, Clive Raymond Evjen; Kursula, Petri (Journal article; Peer reviewed, 2022)
      Activity-regulated cytoskeleton-associated protein (Arc) is a multidomain protein of retroviral origin with a vital role in the regulation of synaptic plasticity and memory formation in mammals. However, the mechanistic ...
    • Molecular mechanisms of Charcot-Marie-Tooth neuropathy linked to mutations in human myelin protein P2 

      Ruskamo, Salla; Nieminen, Tuomo; Kristiansen, Cecilie Katrin; Vatne, Guro Helén; Baumann, Anne; Hallin, Erik Ingmar; Raasakka, Arne; Joensuu, Päivi; Bergmann, Ulrich; Vattulainen, Ilpo; Kursula, Petri (Peer reviewed; Journal article, 2017-07-26)
      Charcot-Marie-Tooth (CMT) disease is one of the most common inherited neuropathies. Recently, three CMT1-associated point mutations (I43N, T51P, and I52T) were discovered in the abundant peripheral myelin protein P2. These ...
    • Neuropathy-related mutations alter the membrane binding properties of the human myelin protein P0 cytoplasmic tail 

      Raasakka, Arne; Ruskamo, Salla; Barker, Robert; Krokengen, Oda Caspara; Vatne, Guro Helén; Kristiansen, Cecilie Katrin; Hallin, Erik Ingmar; Skoda, Maximilian W. A.; Bergmann, Ulrich; Wacklin-Knecht, Hanna; Jones, Nykola C; Hoffmann, Søren V; Kursula, Petri (Peer reviewed; Journal article, 2019-06-07)
      Schwann cells myelinate selected axons in the peripheral nervous system (PNS) and contribute to fast saltatory conduction via the formation of compact myelin, in which water is excluded from between tightly adhered lipid ...
    • The quaternary structure of human tyrosine hydroxylase: effects of dystonia‐associated missense variants on oligomeric state and enzyme activity 

      Szigetvari, Peter Daniel; Muruganandam, Gopinath; Kallio, Juha; Hallin, Erik Ingmar; Fossbakk, Agnete; Loris, Remy; Kursula, Inari; Møller, Lisbeth Birk; Knappskog, Per; Kursula, Petri; Haavik, Jan (Journal article; Peer reviewed, 2019)
      Tyrosine hydroxylase (TH) is a multi-domain, homo-oligomeric enzyme that catalyses the rate-limiting step of catecholamine neurotransmitter biosynthesis. Missense variants of human TH are associated with a recessive ...
    • Raptor-Mediated Proteasomal Degradation of Deamidated 4E-BP2 Regulates Postnatal Neuronal Translation and NF-κB Activity 

      Kouloulia, Stella; Hallin, Erik Ingmar; Simbriger, Konstanze; Amorim, Ines S; Lach, Gilliard; Amvrosiadis, Theoklitos; Chalkiadaki, Kleanthi; Kampaite, Agniete; Truong, Vinh Tai; Hooshmandi, Mehdi; Jafarnejad, Seyed Mehdi; Skehel, Paul; Kursula, Petri; Khoutorsky, Arkady; Gkogkas, Christos (Peer reviewed; Journal article, 2019)
      The translation initiation repressor 4E-BP2 is deamidated in the brain on asparagines N99/N102 during early postnatal brain development. This post-translational modification enhances 4E-BP2 association with Raptor, a central ...
    • Structural properties and peptide ligand binding of the capsid homology domains of human Arc 

      Hallin, Erik Ingmar; Bramham, Clive Raymond Evjen; Kursula, Petri (Journal article; Peer reviewed, 2021)
      The activity-regulated cytoskeleton-associated protein (Arc) is important for synaptic plasticity and the normal function of the brain. Arc interacts with neuronal postsynaptic proteins, but the mechanistic details of its ...
    • Structure and dynamics of a human myelin protein P2 portal region mutant indicate opening of the β barrel in fatty acid binding proteins 

      Laulumaa, Saara; Nieminen, Tuomo; Raasakka, Arne; Krokengen, Oda C.; Safaryan, Anushik; Hallin, Erik Ingmar; Brysbaert, Guillaume; Lensink, Marc F.; Ruskamo, Salla; Vattulainen, Ilpo; Kursula, Petri (Peer reviewed; Journal article, 2018-06-25)
      Background: Myelin is a multilayered proteolipid sheath wrapped around selected axons in the nervous system. Its constituent proteins play major roles in forming of the highly regular membrane structure. P2 is a myelin-specific ...