Stefan Geimer

Depletion of chloroplast HSP70B causes cell division arrest, proteostasis collapse, impaired VIPP1 oligomer dynamics with aberrant thylakoid structures, and increased light sensitivity.

The Chlamydomonas psb28 mutant shows severe PSII assembly defects, and complexome profiling identifies TEF5 as a novel PSII assembly factor involved in CP47 assembly.

This study identifies bi-allelic CCDC146 mutations as a cause of non-syndromic male infertility in humans and mice, showing its role in sperm flagellum structure and microtubule organization.