2021-04-07 REL PDBe PDBe PDBe 2020-08-03 2020-09-23 2020-09-23 2021-04-07 Wang H Bracher A Flecken M Wang H Popilka L Hartl FU Bracher A Hayer-Hartl M Cell 183 457 473.e20 2020 32979320 doi:10.1016/j.cell.2020.09.010 1097-4172 EMD-11028 other EM volume

CryoEM structure of Rubisco Activase with its substrate Rubisco from Nostoc sp. (strain PCC7120)

EMD-11575 associated EM volume NosRca-deltaC:Rubisco complex NosRca-deltaC:Rubisco complex 0 1 2 3

The Rca hexamer captured in the complex with its substrate Rubisco from Nostoc sp. PCC 7120.

Nostoc sp. PCC 7120 = FACHB-418 Escherichia coli BL21 BL21 sTAR AAA-core of the Rca hexamer from Nostoc sp. PCC7120 in complex with ATP/ATPgammaS 1 1 Nostoc sp. PCC 7120 = FACHB-418 Escherichia coli BL21 BL21 sTAR Rubisco complex from Nostoc sp. PCC7120 in complex with inhibitor CABP 1 2 3 Nostoc sp. PCC 7120 = FACHB-418 Escherichia coli BL21 BL21 sTAR singleParticle particle 2.2 8.4 10.0 C4H6O5 Malic acid 20.0 C6H13NO4S 2-ethanesulfonic acid 20.0 C4H11NO3 2-Amino-2-hydroxymethyl-propane-1,3-diol 50.0 KCl Potassium chloride 10.0 MgCl2 Magnesium chloride 5.0 NaHCO3 Sodium bicarbonate 0.004 C6H14O13P2 2-Carboxyarabinitol-1,5-diphosphate 2.0 C10H16N5O13P3 Adenosine triphosphate sodium salt 2.0 C10H12Li4N5O12P3S Adenosine 5'-(3-thiotriphosphate) tetralithium salt Quantifoil CARBON HOLEY ARRAY ETHANE 90 298 FEI VITROBOT MARK IV

NosRubisco (1 uM) was incubated with NaHCO3 (10 mM) at 298 K for 10 min followed by addition of CABP (8 uM). CABP-inhibited NosRubisco (0.5 uM) was then incubated with NosRcaDC (10 uM) in the presence of ATP (2 mM) for 10 s, followed by the addition of ATP-gammaS (2 mM), and incubated at 298 K for another 10 min before preparing the cryo-grids.

FEI TITAN KRIOS SPOT SCAN BRIGHT FIELD FIELD EMISSION GUN 300 GATAN K3 (6k x 4k) 1 9042 2.8 60.0

31 frames per image

1 519151 CTFFIND 4.1 1RBL 3.29 FSC 0.143 CUT-OFF 21149 MAXIMUM LIKELIHOOD RELION MAXIMUM LIKELIHOOD RELION RELION OTHER RECIPROCAL