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phosphatidylcholine transfer protein; PC-TP; START domain-containing protein 2; StARD2; StAR-related lipid transfer protein 2 (PCTP, STARD2)
Function:
- catalyzes transfer of phosphatidylcholine between membranes
- binds a single lipid molecule
- interacts with ACOT13/THEM2 (putative)
Structure: contains 1 START domain
Compartment: cytoplasm (putative)
Alternative splicing: named isoforms=2
Expression:
- highest expression in liver, placenta, testis, kidney & heart
- low levels in brain & lung
- no expression in thymus
General
phospholipid transfer protein; lipid transfer protein II (PLTP)
Properties
SIZE: entity length = 214 aa
MW = 25 kD
COMPARTMENT: cytoplasm
MOTIF: signal sequence {1-17}
N-glycosylation site {N64}
Thr phosphorylation site {T93}
N-glycosylation site {N94}
Ser phosphorylation site {S96}
START {1-212}
MOTIF: binding site
SITE: 72-72
FOR-BINDING-OF: Phosphatidylcholine
binding site
SITE: 78-78
FOR-BINDING-OF: Phosphatidylcholine
binding site
SITE: 157-157
FOR-BINDING-OF: Phosphatidylcholine
N-glycosylation site {N117}
N-glycosylation site {N143}
cysteine residue {C146}
MODIFICATION: cysteine residue {C185}
cysteine residue {C185}
MODIFICATION: cysteine residue {C146}
N-glycosylation site {N245}
N-glycosylation site {N398}
Database Correlations
OMIM 606055
UniProt Q9UKL6
Pfam PF01852
Entrez Gene 58488
Kegg hsa:58488
References
- UniProt :accession Q9UKL6
- Rothman Nature 'News & Views' 347:519 1990