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dpaL

Gene
dpaL
Protein
Diaminopropionate ammonia-lyase
Organism
Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
Length
404 amino acids
Function
Catalyzes the alpha,beta-elimination reaction of both L- and D-alpha,beta-diaminopropionate (DAP) to form pyruvate and ammonia. In vitro L- and D-isomers of serine are also degraded, though slowly; it is the only serine dehydratase which can eliminate an amino group at the beta-carbon position. In vivo L-, D- and a mixure of DL-DAP allow growth. DL-DAP is toxic in the absence of this enzyme, it may inhibit enzymes involved in the synthesis of pyruvate and aspartate, as well as amino acids derived from them.
Similarity
Belongs to the diaminopropionate ammonia-lyase family.
Mass
44.152 kDa
Sequence
MHELIKYQFNTRRKKYGTGAALSLLNGNVGHEVLAFHKKLPNYAVTPLHNLAHLSQRLGLGSIHIKDESWRFGLNAFKGLGGSYAVGKYLADKLQCDINSLSFAALNTPEIKEKIKDCVFVTATDGNHGRGVAWAAEQLGLKAVVYMPKGSSLIRAENIRHHGAECTITDLNYDDAVRLAHRMAQTKGWVLLQDTAWTGYEEIPTWIMQGYMTLAVEAYEQLAETNSPLPTHLILQAGVGSFAGSVMGYFVEKMQENIPNIIVVEPHQANCLYQSAVMDDGQPHCVTGDMATIMAGLACGEPNIISWPIIRDNTSCFISADDCLAAKGMRISAAPRPGTDTPFISGESGAIGVGLLYELMNNMHYQDLANRLQLDASAHVLLISTEGDTSPDIYEDIVWNGRSA

Gene
dpaL
Protein
Diaminopropionate ammonia-lyase
Organism
Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
Length
404 amino acids
Function
Catalyzes the alpha,beta-elimination reaction of both L- and D-alpha,beta-diaminopropionate (DAP) to form pyruvate and ammonia. In vitro L- and D-isomers of serine are also degraded, though slowly; it is the only serine dehydratase which can eliminate an amino group at the beta-carbon position. In vivo L-, D- and a mixure of DL-DAP allow growth. DL-DAP is toxic in the absence of this enzyme, it may inhibit enzymes involved in the synthesis of pyruvate and aspartate, as well as amino acids derived from them.
Similarity
Belongs to the diaminopropionate ammonia-lyase family.
Mass
44.152 kDa
Sequence
MHELIKYQFNTRRKKYGTGAALSLLNGNVGHEVLAFHKKLPNYAVTPLHNLAHLSQRLGLGSIHIKDESWRFGLNAFKGLGGSYAVGKYLADKLQCDINSLSFAALNTPEIKEKIKDCVFVTATDGNHGRGVAWAAEQLGLKAVVYMPKGSSLIRAENIRHHGAECTITDLNYDDAVRLAHRMAQTKGWVLLQDTAWTGYEEIPTWIMQGYMTLAVEAYEQLAETNSPLPTHLILQAGVGSFAGSVMGYFVEKMQENIPNIIVVEPHQANCLYQSAVMDDGQPHCVTGDMATIMAGLACGEPNIISWPIIRDNTSCFISADDCLAAKGMRISAAPRPGTDTPFISGESGAIGVGLLYELMNNMHYQDLANRLQLDASAHVLLISTEGDTSPDIYEDIVWNGRSA