序列操作套件 SMS2：
蛋白等电点
计算蛋白质的理论等电点（pI）。
载入示例数据
填充示例序列，方便快速体验
Paste the raw sequence or one or more FASTA sequences into the text area below. Input limit is 200,000,000 characters.
>sequence 1 GAMPSTRV >sequence 2 MPSTYLLQ
Add
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copies of
Nothing
AU1 (DTYRYI)
AU5 (TDFYLK)
BTag (QYPALT)
c-myc (EQKLISEEDL)
FLAG (DYKDDDDK)
GFP (MSKGEELFTG...)
Glu-Glu (EYMPME)
Glu-Glu (EFMPME)
GST (MSPILGYWKI...)
HA (YPYDVPDYA)
His6 (HHHHHH)
HSV (QPELAPEDPE...)
HTTPHH (HTTPHH)
IRS (RYIRS)
KT3 (PPEPET)
Protein C (EDQVDPRLID...)
S-Tag (KETAAAKFER...)
SBP (MDEKTTGWRG...)
T7 (MASMTGGQQM...)
V5 (GKPIPNPLLG...)
VSV-G (MNRLGK)
to each sequence.
Use pK values from
EMBOSS
DTASelect