| AFILMV |
Thermolysin |
N-terminal side of A, F, I, L, M, V |
if D or E is N-term to A, F, I, L, M, V |
| AFYWLIV |
Proteinase K |
C-terminal side of A, F, Y, W, L, I, V |
— |
| D |
Microwave-assisted formic acid hydrolysis |
C-terminal side of D |
— |
| DE |
Glu C (phosphate) |
C-terminal side of D or E |
if P is C-term to D or E, or if E is C-term to D or E |
| DEK |
Glu C (phosphate)+Lys C |
C-terminal side of D, E and K |
if P is C-term to D or E, or if E is C-term to D or E |
| DK |
Asp N/Lys C |
N-terminal side of D, C-terminal side of K |
— |
| E |
Glu C (bicarbonate) |
C-terminal side of E |
if P is C-term to E, or if E is C-term to E |
| FL |
Pepsin 
|
C-terminal side of F, L |
— |
| FLMWY |
Chymotrypsin (F/L/M/W/Y) |
C-terminal side of F, L, M, W, Y |
if P is C-term to F, L, M, W, Y, if P is N-term to Y |
| FLWYAEQ |
Pepsin (pH > 2) |
C-terminal side of F, L, W, Y, A, E, Q |
— |
| FYW |
Chymotrypsin (F/Y/W) |
C-terminal side of F, Y, W |
if P is C-term to F, Y, W, if P is N-term to Y |
| K |
Lys C |
C-terminal side of K |
— |
| KR |
Trypsin |
C-terminal side of K or R |
if P is C-term to K or R |
| KRFYW |
Trypsin/Chymotrypsin |
C-terminal side of K, R, F, Y, W |
— |
| M |
CNBr |
C-terminal side of M |
— |
| R |
Arg C |
C-terminal side of R |
if P is C-term to R |
