SLS4

Phosphatidylcholine:ceramide cholinephosphotransferase 4

365 amino acids

Bidirectional lipid cholinephosphotransferase capable of converting phosphatidylcholine (PC) and ceramide to sphingomyelin (SM) and diacylglycerol (DAG) and vice versa. Direction is dependent on the relative concentrations of DAG and ceramide as phosphocholine acceptors. Directly and specifically recognizes the choline head group on the substrate. Also requires two fatty chains on the choline-P donor molecule in order to be recognized efficiently as a substrate. Does not function strictly as a SM synthase. Essential for viability of the pathogenic bloodstream stage of this human protozoan parasite and, consequently, can be considered as potential drug target (By similarity).

Belongs to the sphingomyelin synthase family.

40.857 kDa

MISYPFFSLSPPGLVPPPMAVPPVEMYSGSFWNRMRKPLPLRTQVIRFTVVFVIVSFILAVALQITHERMPDPKVTKPLPDLGFELLTKVPGMYVLADCCIGFLNILSVFTAFKLYLLHRHCVGSGEPELPCNIPGVSRFFLSVWLCKENCRIELRNVHTIAWIRFITSYALLLLFRSVVIVMTSLPAPDDLCQDPPKIENPVKNVILTVLTAGGGSIHCGDLMYSGHTVILTLHLMFHWIYGAMVHWSFRPVVTVVAIFGYYCIVASRFHYTDDVLVAIYLTIATFIAVGHNADGAPWQLQLFIRWLPCCGANSREMTEDSQPVMVAFKSEELDEMNGVLEGRQKKHGGVGDGEALMFKCGAYV

SLS4

Phosphatidylcholine:ceramide cholinephosphotransferase 4

365 amino acids

Bidirectional lipid cholinephosphotransferase capable of converting inositol phosphorylceramide (IPC) to sphingomyelin (SM) and diacylglycerol (DAG) and vice versa. Direction is dependent on the relative concentrations of DAG and ceramide as phosphocholine acceptors. Directly and specifically recognizes the choline head group on the substrate. Also requires two fatty chains on the choline-P donor molecule in order to be recognized efficiently as a substrate. Does not function strictly as a SM synthase. Essential for viability of the pathogenic bloodstream stage of this human protozoan parasite and, consequently, can be considered as potential drug target.

Belongs to the sphingomyelin synthase family.

40.9 kDa

MISYPFFSLSPPGLVPPPMAVPPVEMYSGSFWNRMRKPLPLRTQVIRFTVVFVIVSFILAVALQITHERMPDPKVTKPLPDLGFELLTKVPGMYVLADCCIGFLNILSVFTAFKLYLLHRHCVGSGEPELPCNIPGVSRFFLSVWLCKENCRIELRNIHTIAWIRFITSYALLLLFRSAVIVMTSLPAPDDLCQDPPKIENPVKNVILTVLTAGGGSIHCGDLMYSGHTVILTLHLMFHWIYGAMVHWSFRPVVTVVAIFGYYCIVASRFHYTDDVLVAIYLTIATFIAVGHNADGAPWQLQLFIRWWPCCGANSREVTEDSQPVMVAFKSEELDEMNGVLEGRQKKHGGVGDGESLMFKCGAYV