Resonance assignment of coiled-coil 3 (CC3) domain of human STIM1

Research output: Contribution to journalArticlepeer-review

Abstract

The protein stromal interaction molecule 1 (STIM1) plays a pivotal role in mediating store-operated calcium entry (SOCE) into cells, which is essential for adaptive immunity. It acts as a calcium sensor in the endoplasmic reticulum (ER) and extends into the cytosol, where it changes from an inactive (tight) to an active (extended) oligomeric form upon calcium store depletion. NMR studies of this protein are challenging due to its membrane-spanning and aggregation properties. Therefore follow the divide-and-conquer approach, focusing on individual domains first is in order. The cytosolic part is predicted to have a large content of coiled-coil (CC) structure. We report the 1H, 13C, 15N chemical shift assignments of the CC3 domain. This domain is crucial for the stabilisation of the tight quiescent form of STIM1 as well as for activating the ORAI calcium channel by direct contact, in the extended active form.
Original languageEnglish
Pages (from-to)433-439
Number of pages7
JournalBiomolecular NMR Assignments
Volume15
Issue number2
DOIs
Publication statusPublished - 2021

Fields of science

  • 104 Chemistry
  • 104021 Structural chemistry
  • 104026 Spectroscopy
  • 104015 Organic chemistry
  • 104017 Physical chemistry
  • 106002 Biochemistry
  • 106041 Structural biology
  • 301305 Medical chemistry
  • 302043 Magnetic resonance imaging (MRI)

JKU Focus areas

  • Sustainable Development: Responsible Technologies and Management

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