Binds, via its C-terminus, to the PID domain of several cytoplasmic proteins, including APBB family members, the APBA family,
MAPK8IP1,
SHC1 and,
NUMB and
DAB1 (By similarity). Binding to
DAB1 inhibits its serine phosphorylation (By similarity). Interacts (via NPXY motif) with
DAB2 (via PID domain); the interaction is impaired by tyrosine phosphorylation of the NPXY motif. Also interacts with GPCR-like protein BPP,
APPBP1, IB1, KNS2 (via its
TPR domains),
APPBP2 (via BaSS) and
DDB1. In vitro, it binds
MAPT via the MT-binding domains (By similarity). Associates with microtubules in the presence of ATP and in a kinesin-dependent manner (By similarity). Interacts, through a C-terminal domain, with
GNAO1. Amyloid-beta protein 42 binds
CHRNA7 in hippocampal neurons. Amyloid-beta associates with HADH2. Soluble
APP binds, via its N-terminal head, to
FBLN1. Interacts with
CPEB1 and
AGER (By similarity). Interacts with
ANKS1B and
TNFRSF21. Interacts with
ITM2B. Interacts with
ITM2C. Interacts with
IDE. Can form homodimers; dimerization is enhanced in the presence of Cu(2+) ions (PubMed:25122912). Can form homodimers; this is promoted by heparin binding. Amyloid-beta protein 40 interacts with
S100A9. CTF-alpha product of
APP interacts with
GSAP. Isoform
APP695 interacts with
SORL1 (via N-terminal ectodomain); this interaction retains
APP in the trans-Golgi network and reduces processing into soluble
APP-alpha and amyloid-beta peptides (PubMed:16174740, PubMed:16407538, PubMed:17855360, PubMed:24523320). The C99 fragment also interacts with
SORL1 (PubMed:16407538). Isoform
APP751 interacts with
SORL1 (PubMed:16174740). Isoform
APP770 interacts with
SORL1 (PubMed:16174740). Interacts with
PLD3. Interacts with
VDAC1 (PubMed:25168729). Interacts with
NSG1; could regulate
APP processing (By similarity). Amyloid-beta protein 42 interacts with
FPR2 (PubMed:11689470). Interacts with
SYT7 (By similarity). Interacts (via transmembrane region) with
PSEN1; the interaction is direct (PubMed:30630874). Interacts with
LRRK2 (PubMed:28720718). Interacts (via cytoplasmic domain) with
KIF5B (PubMed:23011729).
UniProt