Fumarase C variant that eliminates the B-site

Fumarase C,Aerobic fumarase,Iron-independent fumarase

MNTVRSEKDSMGAIDVPADKLWGAQTQRSLEHFRISTEKMPTSLIHALALTKRAAAKVNEDLGLLSEEKASAIRQAADEV
LAGQHDDEFPLAIWQTGSGTQSNMNMNEVLANRASELLGGVRGMEAKVHPNDDVNKSQSSNDVFPTAMHVAALLALRKQL
IPQLKTLTQTLNEKSRAFADIVKIGRTHLQDATPLTLGQEISGWVAMLEHNLKHIEYSLPHVAELALGGTAVGTGLNTHP
EYARRVADELAVITCAPFVTAPNKFEALATCDALVQAHGALKGLAASLMKIANDVRWLASGPRCGIGEISIPENEPGSSI
MPGKVNPTQCEALTMLCCQVMGNDVAINMGGASGNFELNVFRPMVIHNFLQSVRLLADGMESFNKHCAVGIEPNRERINQ
LLNESLMLVTALNTHIGYDKAAEIAKKAHKEGLTLKAAALALGYLSEAEFDSWVRPEQMVGSMKAGRHHHHH

Re-refined and rebuilt sections of model. In particular, the SS Loop and N-terminal b-strands (residue 3 - 18) from the A-subunit and domain 3 from the B-subunit. The SS Loop is missing residues 317 - 323 and domain 3 is missing residues 417 - 424. The N-terminal b-strands from the A-subunit have localized disorder not witnessed in prior FumC structure A-subunits. The alteration of R126 to alanine has increased the disorder in these three areas.

fumarase, metabolism, Krebs Cycle, LYASE

MNTVRSEKDSMGAIDVPADKLWGAQTQRSLEHFRISTEKMPTSLIHALALTKRAAAKVNEDLGLLSEEKASAIRQAADEV
LAGQHDDEFPLAIWQTGSGTQSNMNMNEVLANRASELLGGVRGMERKVHPNDDVNKSQSSNDVFPTAMHVAALLALRKQL
IPQLKTLTQTLNEKSRAFADIVKIGRTHLQDATPLTLGQEISGWVAMLEHNLKHIEYSLPHVAELALGGTAVGTGLNTHP
EYARRVADELAVITCAPFVTAPNKFEALATCDALVQAHGALKGLAASLMKIANDVRWLASGPRCGIGEISIPENEPGSSI
MPGKVNPTQCEALTMLCCQVMGNDVAINMGGASGNFELNVFRPMVIHNFLQSVRLLADGMESFNKHCAVGIEPNRERINQ
LLNESLMLVTALNTHIGYDKAAEIAKKAHKEGLTLKAAALALGYLSEAEFDSWVRPEQMVGSMKAGR