Homodimer and heterodimer; heterodimerizes (via the EF-hand 5) with
PEF1 (PubMed:11278427, PubMed:11883899, PubMed:27784779). Isoform 1 and isoform 2 self-associate; probably forming homodimers. Interacts with
CPNE4 (via VWFA domain) (By similarity). Interacts with
PDCD6IP; the interaction is calcium-dependent (PubMed:16957052, PubMed:18256029, PubMed:18940611, PubMed:20691033, PubMed:25667979). Interacts with
RBM22 (PubMed:17045351). Interacts with
PLSCR4 (PubMed:18256029). Interacts with
ANXA7 and
TSG101 (PubMed:18256029, PubMed:20691033). Interacts with
DAPK1 (PubMed:16132846). Interacts with
SEC31A; the interaction is calcium-dependent and promotes monoubiquitination of
SEC31A (PubMed:16957052, PubMed:18256029, PubMed:27716508, PubMed:25667979). Interacts with
ANXA11 (via N-terminus); the interaction is calcium-dependent (PubMed:11883939, PubMed:18256029, PubMed:18940611). Interacts with
PLSCR3 (via N-terminus); the interaction is calcium-dependent (PubMed:18256029). Interacts with
MCOLN1; the interaction is calcium-dependent (PubMed:19864416). Interacts with
KDR; the interaction is calcium-dependent (PubMed:21893193). Interacts with
HEBP2; the interaction is calcium-dependent (PubMed:27784779). Interacts with
TFG (PubMed:27813252). Isoform 1: Interacts with
SHISA5, leading to stabilize it (PubMed:17889823). Isoform 2: Does not interact with
SHISA5 (PubMed:17889823). Isoform 2: Does not interact with
PDCD6IP,
TSG101,
ANXA7 and
ANXA11 (PubMed:18256029, PubMed:20691033).
UniProt