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choA

Gene
choA
Protein
Phosphatidylethanolamine N-methyltransferase
Organism
Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139)
Length
965 amino acids
Function
Catalyzes the first step of the methylation pathway of phosphatidylcholine biosynthesis, the SAM-dependent methylation of phosphatidylethanolamine (PE) to phosphatidylmonomethylethanolamine (PMME).
Similarity
Belongs to the class VI-like SAM-binding methyltransferase superfamily. CHO2 family.
Mass
109.106 kDa
Sequence
MDRGLSTGTNQSGAGLRERAVTSQADLNVITENPTVTNASNGKDKAGKTFGRTPDGTVFTVPQTHDMVSQLLSPSEPKNLSDLVVLTILAGHIFLLWILPSGAKIPVFAVIYLFWRSCYNAGIGWLLHNQSHHKTLVRWAEKSQIFVNPATGKNPYPQLYHLIKRELEIKISKDYSFEEAPLEYNTWLVFRRLVDLILMCDFASYCLFAIACSRHPANESVLMTVIRWTSGIALVLFNLWVKLDAHRVVKDYAWYWGDFFYLIDQELTFDGVFEMAPHPMYSVGYAGYYGISLMAASYKVLFISIIAHAAQFAFLVLVENPHIDKTYNPPPPRKRTITEHDAASQRSQSPDTPNAPSVSEENVPNATTFSSPPPAVHNLLGFHNLDLHRITDTSSILVQFLMFSLTVLTPSTPWYQFLFVANAAIWRLWYSVGIGYLLNRQSNCKSWTRHFVKYGETPHEAWNQWKGTYHLSMVMCYASFISAVWKMYTLPSNWGYGLAILRHVLGAGLISLQIWTSVSIYESLGEFGWFYGDFFFDESPKLTYNGIYRFLNNPERVLGLAGVWGAVLITASGTVAFLAFLSHILSLGFIQFVERPHMQKLYGRSLRQDAGLVKSLKRSLPPSLRQLHGSVDKIFDESYEFIEEIIDTARPKLAAGVNTFVRDTTALFQKYPARVTISRIDADLAGYDLRDYSLTVEASQLPLDEGDLSKEGDNARTPLDRRGDLENLVFPYGTPVKVKWTAPLNHSKKDWIGLYKVTDNTSREVTRVSSQGRWVAVNEGFYDNLTCERGILISDVVVSTSQGDNGEKHDIATGEVVFSGDKLFWTQGVFEFRYHHNGKHNVMAISRPFEVRIPRFEEEDHFDMSQTAVETSLLPVIQNCFDRDPEIAPETPEEQYGSLVERDGKFAKRVVFAVHQMFGVEFAPEVVRSDGNVRNLAWRICNAKRVLAPYSMSRDGATTPTESKE

Gene
choA
Protein
Cholesterol oxidase
Organism
Streptomyces sp. (strain SA-COO)
Length
546 amino acids
Function
Bifunctional enzyme that catalyzes the oxidation of the 3-beta-hydroxy group of cholesterol and the isomerization of the double bond of the resulting product.
Similarity
Belongs to the GMC oxidoreductase family.
Mass
58.994 kDa
Sequence
MTAQQHLSRRRMLGMAAFGAAALAGGTTIAAPRAAAAAKSAADNGGYVPAVVIGTGYGAAVSALRLGEAGVQTLMLEMGQLWNQPGPDGNIFCGMLNPDKRSSWFKNRTEAPLGSFLWLDVVNRNIDPYAGVLDRVNYDQMSVYVGRGVGGGSLVNGGMAVEPKRSYFEEILPRVDSSEMYDRYFPRANSMLRVNHIDTKWFEDTEWYKFARVSREQAGKAGLGTVFVPNVYDFGYMQREAAGEVPKSALATEVIYGNNHGKQSLDKTYLAAALGTGKVTIQTLHQVKTIRQTKDGGYALTVEQKDTDGKLLATKEISCRYLFLGAGSLGSTELLVRARDTGTLPNLNSEVGAGWGPNGNIMTARANHMWNPTGAHQSSIPALGIDAWDNSDSSVFAEIAPMPAGLETWVSLYLAITKNPQRGTFVYDAATDRAKLNWTRDQNAPAVNAAKALFDRINKANGTIYRYDLFGTQLKAFADDFCYHPLGGCVLGKATDDYGRVAGYKNLYVTDGSLIPGSVGVNPFVTITALAERNVERIIKQDVTAS