[PrdC protein]-Se-L-selenocysteinyl-S-L-cysteine + 5-aminopentanoate => [PrdC protein]-L-selenocysteine/L-cysteine + D-proline
[prdc protein]-se-l-selenocysteinyl-s-l-cysteine + 5-aminopentanoate => [prdc protein]-l-selenocysteine/l-cysteine + d-proline
[PrdC protein]-Se-L-selenocysteinyl-S-L-cysteine + 5-aminopentanoate => [PrdC protein]-L-selenocysteine/L-cysteine + D-proline
[prdc protein]-se-l-selenocysteinyl-s-l-cysteine + 5-aminopentanoate => [prdc protein]-l-selenocysteine/l-cysteine + d-proline