FEATURES

FAMILY

DESCRIPTION

Also known as CPIN1_HUMAN, CIAPIN1. Component of the cytosolic iron-sulfur (Fe-S) protein assembly (CIA) machinery required for the maturation of extramitochondrial Fe-S proteins. Part of an electron transfer chain functioning in an early step of cytosolic Fe-S biogenesis, facilitating the de novo assembly of a [4Fe-4S] cluster on the scaffold complex NUBP1-NUBP2. Electrons are transferred to CIAPIN1 from NADPH via the FAD- and FMN-containing protein NDOR1 (PubMed:23596212). NDOR1-CIAPIN1 are also required for the assembly of the diferric tyrosyl radical cofactor of ribonucleotide reductase (RNR), probably by providing electrons for reduction during radical cofactor maturation in the catalytic small subunit (By similarity). Has anti-apoptotic effects in the cell. Involved in negative control of cell death upon cytokine withdrawal. Promotes development of hematopoietic cells (By similarity). Monomer. Interacts with NDOR1; its oxidized form can be reduced by NDOR1. Interacts with CHCHD4 and may be a substrate for CHCHD4 chaperone activity.

EXTERNAL LINKS

CIAPIN1

Anamorsin

CIAPIN1

Molecular Synopsis