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分子量: | 37,438(アミノ酸配列) |
36,000~37,000(SDS-PAGE) | |
等電点: | 4.6~4.65 |
阻害剤: | EDTA(0.1 mM添加で完全に阻害) |
至適pH: | 5.5~6.0(Co2+非存在下、90℃) |
5.5~8.0(20 μM Co2+存在下、90℃) | |
至適温度: | 80℃(Co2+非存在下、pH6.0) |
95℃(20 μM Co2+存在下、pH6.0) | |
温度安定性: | 90℃、pH8.0、Co2+非存在下4時間処理後に65%の活性を保持している |
温度(℃) | 活性(U/mL) | |
CoCl2 なし | 20μM CoCl2 | |
37 | 2.38 | 3.12 |
50 | 4.73 | 7.70 |
75 | 9.33 | 49.88 |
90 | 9.46 | 69.56 |
基質 | 反応時間(hr) | 遊離アミノ酸(%) | |
Leu-Enkephalin (Tyr-Gly-Gly-Phe-Leu) | 3.5 | Tyr | 103.5 |
Gly | 215.6 | ||
Phe | 105.9 | ||
Leu | 102.4 | ||
Angiotensin (Asp-Arg-Val-Tyr-Ile-His-Pro-Phe-His-Leu) |
1.0 | Asp | 102.2 |
Arg | 94.8 | ||
Val | 92.6 | ||
Tyr | 104.1 | ||
Ile | 6.2 | ||
Substance P (Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu | 3.5 | None | |
[D-Ala2, D-Leu5]-Enkephalin (Tyr-D-Ala-Gly-Phe-D-Leu) |
3.5 | Tyr | 106.3 |
D-Ala | 58.7 | ||
Gly | 40.3 | ||
Phe | 0 | ||
D-Leu | 0 | ||
Insulin B-chain (Phe-Val-Asn-Gln-His-Leu-Cys[SO3H]-Gly-Ser- His-Leu-Val-Glu-Ala-Leu-Tyr-Leu-Val-Cys[SO3H]- Gly-Glu-Arg-Gly-Phe-Phe-Tyr-Thr-Pro-Lys-Ala) |
1.0 | Phe | 35.5 |
Val | 20.5 | ||
His | 20.9 | ||
Leu | 25.5 | ||
Gly | 14.0 | ||
Ser | 9.4 | ||
Glu | 7.6 | ||
Ala | 7.3 |