Escherichia coli periplasmic phytase AppA D304E mutant, complex with myo-inositol hexakissulfate

2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31.

Insights to the Structural Basis for the Stereospecificity of the Escherichia coli Phytase, AppA.

AppA family phytase/histidine-type acid phosphatase,Bifunctional acid phosphatase/4-phytase,Periplasmic AppA protein,Periplasmic AppA protein [includes: phosphoanhydrid phosphohydrolase and 4-phytase],Phosphoanhydride phosphohydrolase (pH 2.5 acid phosphatase) (AP) / 4- phytase,Phosphoanhydride phosphorylase,Phytase AppA

GPQSEPELKLESVVIVSRHGVRAPTKATQLMQDVTPDAWPTWPVKLGWLTPRGGELIAYLGHYQRQRLVADGLLAKKGCP
QSGQVAIIADVDERTRKTGEAFAAGLAPDCAITVHTQADTSSPDPLFNPLKTGVCQLDNANVTDAILSRAGGSIADFTGH
RQTAFRELERVLNFPQSNLCLKREKQDESCSLTQALPSELKVSADNVSLTGAVSLASMLTEIFLLQQAQGMPEPGWGRIT
DSHQWNTLLSLHNAQFYLLQRTPEVARSRATPLLDLIKTALTPHPPQKQAYGVTLPTSVLFIAGHETNLANLGGALELNW
TLPGQPDNTPPGGELVFERWRRLSDNSQWIQVSLVFQTLQQMRDKTPLSLNTPPGEVKLTLAGCEERNAQGMCSLAGFTQ
IVNEARIPACSL

100 mM MES pH 6.5, 18 % w/v PEG 8000, 200 mM calcium acetate. Soaked in 20 % w/v PEG 3350, 9 mM IHS in 0.6 M glycine pH 3.0, 20 % glycerol.

Biotechnology and Biological Sciences Research Council (BBSRC)

Wild type enzyme complex with inorganic phosphate

Wild type enzyme complex with imyo-inositol hexakissulfate

D304A mutant enzyme complex with imyo-inositol hexakissulfate

D304A T305E mutant enzyme complex with imyo-inositol hexakissulfate

T305E mutant enzyme complex with imyo-inositol hexakissulfate

histidine acid phosphatase, phytase, HYDROLASE

QSEPELKLESVVIVSRHGVRAPTKATQLMQDVTPDAWPTWPVKLGWLTPRGGELIAYLGHYQRQRLVADGLLAKKGCPQS
GQVAIIADVDERTRKTGEAFAAGLAPDCAITVHTQADTSSPDPLFNPLKTGVCQLDNANVTDAILSRAGGSIADFTGHRQ
TAFRELERVLNFPQSNLCLKREKQDESCSLTQALPSELKVSADNVSLTGAVSLASMLTEIFLLQQAQGMPEPGWGRITDS
HQWNTLLSLHNAQFYLLQRTPEVARSRATPLLDLIKTALTPHPPQKQAYGVTLPTSVLFIAGHDTNLANLGGALELNWTL
PGQPDNTPPGGELVFERWRRLSDNSQWIQVSLVFQTLQQMRDKTPLSLNTPPGEVKLTLAGCEERNAQGMCSLAGFTQIV
NEARIPACSL