Gene name:
LRP5(LRP7;LRP7);
Protein name:
Low-density lipoprotein receptor-related protein 5(LRP-5);
Alternative:
Organism:
Human (Homo sapiens).
General Annotation
Sub Unit:
Homodimer; disulfide-linked. Forms phosphorylated oligomer aggregates on Wnt-signaling (By similarity). Component of a Wnt-signaling complex that contains a WNT protein, a FZD protein and LRP5 or LRP6. Interacts with FZD8; the interaction is formed on WNT-binding and signaling. Interacts (via the phosphorylated PPPSP motif domains) with AXIN1; the interaction prevents inhibition of beta-catenin phosphorylation and signaling and is enhanced in the presence of GSK3B and WNT1 or WNT3A. Interacts (via beta-propeller regions 3 and 4) with DKK1; the interaction, enhanced by MESD and/or KREMEN, inhibits beta-catenin signaling by preventing GSK3-mediated phosphorylation of the PPPSP motifs and subsequent, AXIN1 binding. Interacts with MESD; the interaction prevents the formation of LRP5 aggregates, targets LRP5 to the plasma membrane and, when complexed with KREMEN2, increases DKK1 binding. Interacts with CSNK1E. Interacts with SOST; the interaction antagonizes canonical Wnt signaling. Interacts with APCDD1.
Function:
Component of the Wnt-Fzd-LRP5-LRP6 complex that triggers beta-catenin signaling through inducing aggregation of receptor-ligand complexes into ribosome-sized signalsomes. Cell-surface coreceptor of Wnt/beta-catenin signaling, which plays a pivotal role in bone formation. The Wnt-induced Fzd/LRP6 coreceptor complex recruits DVL1 polymers to the plasma membrane which, in turn, recruits the AXIN1/GSK3B-complex to the cell surface promoting the formation of signalsomes and inhibiting AXIN1/GSK3-mediated phosphorylation and destruction of beta-catenin. Appears be required for postnatal control of vascular regression in the eye. Required for posterior patterning of the epiblast during gastrulation.
Subcellular Location:
Membrane
Single-pass type I membrane protein
Endoplasmic reticulum
Chaperoned to the plasma membrane by MESD.
Protein Attributes:
50:
MEAAPPGPPW | PLLLLLLLLL | ALCGCPAPAA | ASPLLLFANR | RDVRLVDAGG |
100:
VKLESTIVVS | GLEDAAAVDF | QFSKGAVYWT | DVSEEAIKQT | YLNQTGAAVQ |
150:
NVVISGLVSP | DGLACDWVGK | KLYWTDSETN | RIEVANLNGT | SRKVLFWQDL |
200:
DQPRAIALDP | AHGYMYWTDW | GETPRIERAG | MDGSTRKIIV | DSDIYWPNGL |
250:
TIDLEEQKLY | WADAKLSFIH | RANLDGSFRQ | KVVEGSLTHP | FALTLSGDTL |
300:
YWTDWQTRSI | HACNKRTGGK | RKEILSALYS | PMDIQVLSQE | RQPFFHTRCE |
350:
EDNGGCSHLC | LLSPSEPFYT | CACPTGVQLQ | DNGRTCKAGA | EEVLLLARRT |
400:
DLRRISLDTP | DFTDIVLQVD | DIRHAIAIDY | DPLEGYVYWT | DDEVRAIRRA |
450:
YLDGSGAQTL | VNTEINDPDG | IAVDWVARNL | YWTDTGTDRI | EVTRLNGTSR |
500:
KILVSEDLDE | PRAIALHPVM | GLMYWTDWGE | NPKIECANLD | GQERRVLVNA |
550:
SLGWPNGLAL | DLQEGKLYWG | DAKTDKIEVI | NVDGTKRRTL | LEDKLPHIFG |
600:
FTLLGDFIYW | TDWQRRSIER | VHKVKASRDV | IIDQLPDLMG | LKAVNVAKVV |
650:
GTNPCADRNG | GCSHLCFFTP | HATRCGCPIG | LELLSDMKTC | IVPEAFLVFT |
700:
SRAAIHRISL | ETNNNDVAIP | LTGVKEASAL | DFDVSNNHIY | WTDVSLKTIS |
750:
RAFMNGSSVE | HVVEFGLDYP | EGMAVDWMGK | NLYWADTGTN | RIEVARLDGQ |
800:
FRQVLVWRDL | DNPRSLALDP | TKGYIYWTEW | GGKPRIVRAF | MDGTNCMTLV |
850:
DKVGRANDLT | IDYADQRLYW | TDLDTNMIES | SNMLGQERVV | IADDLPHPFG |
900:
LTQYSDYIYW | TDWNLHSIER | ADKTSGRNRT | LIQGHLDFVM | DILVFHSSRQ |
950:
DGLNDCMHNN | GQCGQLCLAI | PGGHRCGCAS | HYTLDPSSRN | CSPPTTFLLF |
1000:
SQKSAISRMI | PDDQHSPDLI | LPLHGLRNVK | AIDYDPLDKF | IYWVDGRQNI |
1050:
KRAKDDGTQP | FVLTSLSQGQ | NPDRQPHDLS | IDIYSRTLFW | TCEATNTINV |
1100:
HRLSGEAMGV | VLRGDRDKPR | AIVVNAERGY | LYFTNMQDRA | AKIERAALDG |
1150:
TEREVLFTTG | LIRPVALVVD | NTLGKLFWVD | ADLKRIESCD | LSGANRLTLE |
1200:
DANIVQPLGL | TILGKHLYWI | DRQQQMIERV | EKTTGDKRTR | IQGRVAHLTG |
1250:
IHAVEEVSLE | EFSAHPCARD | NGGCSHICIA | KGDGTPRCSC | PVHLVLLQNL |
1300:
LTCGEPPTCS | PDQFACATGE | IDCIPGAWRC | DGFPECDDQS | DEEGCPVCSA |
1350:
AQFPCARGQC | VDLRLRCDGE | ADCQDRSDEA | DCDAICLPNQ | FRCASGQCVL |
1400:
IKQQCDSFPD | CIDGSDELMC | EITKPPSDDS | PAHSSAIGPV | IGIILSLFVM |
1450:
GGVYFVCQRV | VCQRYAGANG | PFPHEYVSGT | PHVPLNFIAP | GGSQHGPFTG |
1500:
IACGKSMMSS | VSLMGGRGGV | PLYDRNHVTG | ASSSSSSSTK | ATLYPPILNP |
1550:
PPSPATDPSL | YNMDMFYSSN | IPATARPYRP | YIIRGMAPPT | TPCSTDVCDS |
1600:
DYSASRWKAS | KYYLDLNSDS | DPYPPPPTPH | SQYLSAEDSC | PPSPATERSY |
Vaild Sequence:
Related Databases
Uniprot: