3.4.21.41 C309W the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 C338R the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 C358F the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 C371W the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 D290G the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 G297D the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 I306-C309del the deletion mutations are associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 L300P the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 additional information by the point mutation of C1r - Arg-Phe - of the natural cleavage site Arg-Ile - the zymogen is stabilized, while the biological activity is not affected 81401 3.4.21.41 R301P the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 R401-Y405del the deletion mutations are associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 R446Q stabilized in the single-chain proenzyme form by mutation at the cleavage site, no esterolytic activity with acetyl-Gly-Lys-methyl ester 652176 3.4.21.41 R463X construction of a stable zymogen by mutating the Arg463Ile bond shows that one active C1r in the C1 complex is sufficient for the full activity of the entire complex 81391 3.4.21.41 R463X the mutants of the proenzyme Arg463Lys,Ile464Phe have increased stability, they retain their ability to autoactivate and have wild-type like hemolytic activity 81405 3.4.21.41 R463X the mutations Arg463Gln, Arg463Lys or Arg463Phe all stabilize the zymogen state 81392 3.4.21.41 S637A stabilized in the single-chain proenzyme form by mutation at the active site serine residue, no esterolytic activity with acetyl-Gly-Lys-methyl ester 652176 3.4.21.41 S654A mutant without autoactivation 652680 3.4.21.41 V50D the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 W364C the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 W435R the mutation is associated with periodontal Ehlers-Danlos syndrome 752432 3.4.21.41 Y302C the mutation is associated with periodontal Ehlers-Danlos syndrome 752432