Table 2

Configurations of allosteric disulfide bonds in blood proteins and their mechanism of cleavage

ProteinDisulfide cysteinesDisulfide bond configuration (Protein Data Bank identifier)Cleavage mechanismReference
Angiotensinogen 18-138 −/+RHHook (2WXW) Oxidoreductase 43 
β2-glycoprotein I 288-326 −/+RHHook (1C1Z) Oxidoreductase 34, 35 
IL-2 receptor subunit γ (CD132) 183-232 −LHHook (2ERJ) Oxidoreductase 46 
Plasminogen 462-541 −/+RHHook (4DUR) Oxidoreductase? 41, 51 
512-536 −LHHook (4DUR) Thiol-disulfide exchange 
β3 integrin (αIIbβ3) 523-544 −LHHook (3FCS) Oxidoreductase? 83 
560-583 −LHHook (3FCS) 
β3 integrin (αvβ3) 523-544 −RHStaple (3IJE) Oxidoreductase? 83 
560-583 −LHHook (3IJE) 
Tissue factor 186-209 −RHStaple (1BOY) Oxidoreductase 98 
Factor XI 362-482 −/+RHHook (2F83) Oxidoreductase 89 
βII-tryptase 220-248 −RHHook and Oxidoreductase 36 
−RHSpiral (3FPZ) 
VEGF-C 156-165 −LHHook (2X1W) Thiol-disulfide exchange 93 
ProteinDisulfide cysteinesDisulfide bond configuration (Protein Data Bank identifier)Cleavage mechanismReference
Angiotensinogen 18-138 −/+RHHook (2WXW) Oxidoreductase 43 
β2-glycoprotein I 288-326 −/+RHHook (1C1Z) Oxidoreductase 34, 35 
IL-2 receptor subunit γ (CD132) 183-232 −LHHook (2ERJ) Oxidoreductase 46 
Plasminogen 462-541 −/+RHHook (4DUR) Oxidoreductase? 41, 51 
512-536 −LHHook (4DUR) Thiol-disulfide exchange 
β3 integrin (αIIbβ3) 523-544 −LHHook (3FCS) Oxidoreductase? 83 
560-583 −LHHook (3FCS) 
β3 integrin (αvβ3) 523-544 −RHStaple (3IJE) Oxidoreductase? 83 
560-583 −LHHook (3IJE) 
Tissue factor 186-209 −RHStaple (1BOY) Oxidoreductase 98 
Factor XI 362-482 −/+RHHook (2F83) Oxidoreductase 89 
βII-tryptase 220-248 −RHHook and Oxidoreductase 36 
−RHSpiral (3FPZ) 
VEGF-C 156-165 −LHHook (2X1W) Thiol-disulfide exchange 93 
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