Crystal structure of Apo (heme-free) PefR

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

Heme controls the structural rearrangement of its sensor protein mediating the hemolytic bacterial survival.

HHHHHHSSGLVPRGSHMENPLQKARILVNQLEKYLDRYAKEYDVEHLAGPQGHLVMHLYKHPDKDMSIKDAEEILHISKS
VASNLVKRMEKNGFIAIVPSKTDKRVKYLYLTHLGKQKATQFEIFLEKLHSTMLAGITKEEIRTTKKVIRTLAKNMAMED
FD

24% (w/v) polyethylene glycol 4000, 0.2 M magnesium chloride, 0.1 M sodium acetate (pH4.6), 16% (v/v) 1,3-butanediol

Heme, transcription regulator, TRANSCRIPTION

(chain 'A' and (resid 3 through 16 or (resid 17 and (name N or name CA or name C or name O or name CB )) or resid 18 through 29 or (resid 30 and (name N or name CA or name C or name O or name CB )) or resid 31 through 56 or (resid 57 and (name N or name CA or name C or name O or name CB )) or resid 58 through 71 or (resid 72 and (name N or name CA or name C or name O or name CB )) or resid 73 through 88 or (resid 89 and (name N or name CA or name C or name O or name CB )) or resid 90 through 137 or (resid 138 and (name N or name CA or name C or name O or name CB )) or resid 139 through 140))

(chain 'B' and (resid 3 through 47 or (resid 48 and (name N or name CA or name C or name O or name CB )) or resid 49 through 74 or (resid 75 and (name N or name CA or name C or name O or name CB )) or resid 76 through 84 or (resid 85 and (name N or name CA or name C or name O or name CB )) or resid 86 through 99 or (resid 100 and (name N or name CA or name C or name O or name CB or name CG or name CD )) or (resid 101 and (name N or name CA or name C or name O or name CB )) or resid 102 through 111 or (resid 112 and (name N or name CA or name C or name O or name CB )) or resid 113 through 130 or (resid 131 and (name N or name CA or name C or name O or name CB )) or resid 132 through 140))

MENPLQKARILVNQLEKYLDRYAKEYDVEHLAGPQGHLVMHLYKHPDKDMSIKDAEEILHISKSVASNLVKRMEKNGFIA
IVPSKTDKRVKYLYLTHLGKQKATQFEIFLEKLHSTMLAGITKEEIRTTKKVIRTLAKNMAMEDFD