General Information of Drug Therapeutic Target (DTT) (ID: TT0KV32)

DTT Name Transcobalamin receptor (CD320)
Synonyms UNQ198/PRO224; TCblR; FDCsignaling molecule 8D6; FDCSM8D6; FDC-signaling molecule 8D6; FDC-SM-8D6; CD320 antigen; 8D6A; 8D6 antigen
Gene Name CD320
DTT Type
Literature-reported target
[1]
UniProt ID
CD320_HUMAN
TTD ID
T84706
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MSGGWMAQVGAWRTGALGLALLLLLGLGLGLEAAASPLSTPTSAQAAGPSSGSCPPTKFQ
CRTSGLCVPLTWRCDRDLDCSDGSDEEECRIEPCTQKGQCPPPPGLPCPCTGVSDCSGGT
DKKLRNCSRLACLAGELRCTLSDDCIPLTWRCDGHPDCPDSSDELGCGTNEILPEGDATT
MGPPVTLESVTSLRNATTMGPPVTLESVPSVGNATSSSAGDQSGSPTAYGVIAAAAVLSA
SLVTATLLLLSWLRAQERLRPLGLLVAMKESLLLSEQKTSLP
Function
Plays an important role in cobalamin uptake. Plasma membrane protein that is expressed on follicular dendritic cells (FDC) and mediates interaction with germinal center B cells. Functions as costimulator to promote B cell responses to antigenic stimuli; promotes B cell differentiation and proliferation. Germinal center-B (GC-B) cells differentiate into memory B-cells and plasma cells (PC) through interaction with T-cells and follicular dendritic cells (FDC). CD320 augments the proliferation of PC precursors generated by IL-10. Receptor for transcobalamin saturated with cobalamin (TCbl).
Reactome Pathway
Transport of RCbl within the body (R-HSA-9758890 )
Defective CD320 causes MMATC (R-HSA-3359485 )

References

1 Targeted delivery of saporin toxin by monoclonal antibody to the transcobalamin receptor, TCblR/CD320. Mol Cancer Ther. 2010 Nov;9(11):3033-40.