2026-06-20_00000224|ligand|9RKM

Crystal structure of [FeFe]-hydrogenase CbA5H from Clostridium beijerinckii in Hinact state; X-ray diffraction 1.96Å
Protein #1 643 residues (98% resolved)

GDNKKSFIQSALGSVFSVFSEEELKELSNGRKIAICGKVNNPGIIEVPEGATLNEIIQLCGGLINKSNFKAAQIGLPFGGFLTEDSLDKEFDFGIFYENIARTIIVLSQEDCIIQFEKFYIEYLLAKIKDGSYKNYEVVKEDITEMFNILNRISKGVSNMREIYLLRNLAVTVKSKMNQKHNIMEEIIDKFYEEIEEHIEEKKCYTSQCNHLVKLTITKKCIGCGACKRACPVDCINGELKKKHEIDYNRCTHCGACVSACPVDAISAGDNTMLFLRDLATPNKVVITQMAPAVRVAIGEAFGFEPGENVEKKIAAGLRKLGVDYVFDTSWGADLTIMEEAAELQERLERHLAGDESVKLPILTSCCPSWIKFIEQNYGDMLDVPSSAKSPMEMFAIVAKEIWAKEKGLSRDEVTSVAIMPCIAKKYEASRAEFSVDMNYDVDYVITTRELIKIFENSGINLKEIEDEEIDTVMGEYTGAGIIFGRTGGVIEAATRTALEKMTGERFDNIEFEGLRGWDGFRVCELEAGDIKLRIGVAHGLREAAKMLDKIRSGEEFFHAIEIMACVGGCIGGGGQPKTKGNKQAALQKRAEGLNNIDRSKTLRRSNENPEVLAIYEKYLDHPLSNKAHELLHTVYFPRVKKD

GDNKKSFIQSALGSVFSVFSEEELKELSNGRKIAICGKVNNPGIIEVPEGATLNEIIQLCGGLINKSNFKAAQIGLPFGGFLTEDSLDKEFDFGIFYENIARTIIVLSQEDCIIQFEKFYIEYLLAKIKDGSYKNYEVVKEDITEMFNILNRISKGVSNMREIYLLRNLAVTVKSKMNQKHNIMEEIIDKFYEEIEEHIEEKKCYTSQCNHLVKLTITKKCIGCGACKRACPVDCINGELKKKHEIDYNRCTHCGACVSACPVDAISAGDNTMLFLRDLATPNKVVITQMAPAVRVAIGEAFGFEPGENVEKKIAAGLRKLGVDYVFDTSWGADLTIMEEAAELQERLERHLAGDESVKLPILTSCCPSWIKFIEQNYGDMLDVPSSAKSPMEMFAIVAKEIWAKEKGLSRDEVTSVAIMPCIAKKYEASRAEFSVDMNYDVDYVITTRELIKIFENSGINLKEIEDEEIDTVMGEYTGAGIIFGRTGGVIEAATRTALEKMTGERFDNIEFEGLRGWDGFRVCELEAGDIKLRIGVAHGLREAAKMLDKIRSGEEFFHAIEIMACVGGCIGGGGQPKTKGNKQAALQKRAEGLNNIDRSKTLRRSNENPEVLAIYEKYLDHPLSNKAHELLHTVYFPRVKKD
Non polymer #2 1PE

InChI=1S/C10H22O6/c11-1-3-13-5-7-15-9-10-16-8-6-14-4-2-12/h11-12H,1-10H2

C(COCCOCCOCCOCCO)O
Non polymer #3 402

InChI=1S/C2H5NS2.2CN.3CO.2Fe/c4-1-3-2-5;5*1-2;;/h3H,1-2H2;;;;;;;/q;;;;2*+1;;

C1NC[S]2[Fe]3([S]1[Fe]2(C3=O)(C#N)C#[O+])(C#N)C#[O+]
Non polymer #4 EPE

InChI=1S/C8H18N2O4S/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14/h11H,1-8H2,(H,12,13,14)

C1CN(CCN1CCO)CCS(=O)(=O)O
Non polymer #5 MG

InChI=1S/Mg/q+2

[Mg+2]
Non polymer #6 SF4

InChI=1S/4Fe.4S

[S]12[Fe]3[S]4[Fe]1[S]5[Fe]2[S]3[Fe]45
Non polymer #7 ZN

InChI=1S/Zn/q+2

[Zn+2]
Download coordinates
Reference