蛋白质一级结构分析

ProtParam
User-provided sequence:
        10        20        30        40        50        60
MLKKQEKFYY GGDYNPEQWD ESVWKEDMRL MKKAGVNYVS INIFSWARLQ PDEETYDFST

        70        80        90        100        110        120
LDKIMDMLAE NGIGADLATA TAAPPAWLSR KYPDSLPVDK DGARFLPGSR QHYCPNSKDY

      130        140        150        160        170        180
ARLAAKLVRK IAERYKNHPA LVMWHVNNEY GCHIAECYCD NCKKAFQTWL KEKYSTIENL

      190        200        210        220        230        240
NKSWSTDFWS QRYYEWEEIC LPGKTPTFAN PMQQLDYKAF MDDSLLALYK MERDILKAYT

      250        260        270        280        290        300
g蛋PDVPVMTNLM GLHKPVDGFH WAKEMDLVTW DAYPDPFDRI PYAQFMAHDL MRSLKKQPFL

      310        320        330        340        350        360
LMEQAAGAVN WRAQNAVKTP GQMRLWSYEA AAHGADGIMF FQWRASQGGA EKFHSGMVPH

      370        380        390        400        410        420
SGDEESRNFR EVVQLGNELK NLEKVTGSAY AADVAIVFDW KNWWALELDS KPSSLVTYIK


      430        440        450        460        470        480
QLLPFYKVLH TRNIGVDFIH PDEAMDRYKV VFAPASYRVT KAFADKVKDY VEKGGYFVSN

      490        500        510        520        530        540
FFSGIADEND RVYLGGYPGA YRDILGIYVE EFAPMKKGAV HQIRTGYGDA AIRVWEEKIH

      550        560        570        580        590        600
LKGAEALAWF KDGYLAGSPA VTAHHCGKGK AYYIGTQPDE QYLSSLLKDI LQEADVRPAL

      610        620        630        640        650        660
DAPRGVEVVV RKNGNEKYLF LLNHTDQVQF VNAGGTYLEL INGDTESETV RLSPRDV
KIL


QVIEK

References and documentation are available.
Number of amino acids: 665
Molecular weight: 76089.5
Theoretical pI: 6.06
窗体顶端
Amino acid composition: 
Ala (A)  63      9.5%
Arg (R)  29      4.4%
Asn (N)  27      4.1%
Asp (D)  47      7.1%
Cys (C)  7      1.1%
Gln (Q)  24      3.6%
Glu (E)  42      6.3%
Gly (G)  43      6.5%
His (H)  17      2.6%
Ile (I)  26      3.9%
Leu (L)  54      8.1%
Lys (K)  51      7.7%
Met (M)  20      3.0%
Phe (F)  28      4.2%
Pro (P)  32      4.8%
Ser (S)  31      4.7%
Thr (T)  24      3.6%
Trp (W)  19      2.9%
Tyr (Y)  38      5.7%
Val (V)  43      6.5%
Pyl (O)  0      0.0%
Sec (U)  0      0.0%
(B)  0      0.0%
(Z)  0      0.0%
(X)  0      0.0%
窗体底端
Total number of negatively charged residues (Asp + Glu): 89Total number of positively charged residues (Arg + Lys): 80
Atomic composition:
Carbon      C          3451
Hydrogen    H          5221
Nitrogen    N          907
Oxygen      O          988
Sulfur      S            27
Formula: C3451H5221N907O988S27Total number of atoms: 10594
Extinction coefficients:
Extinction coefficients are in units of  M-1 cm-1, at 280 nm measured in water.
Ext. coefficient  161495
Abs 0.1% (=1 g/l)  2.122, assuming all pairs of Cys residues form cystines
Ext. coefficient  161120
Abs 0.1% (=1 g/l)  2.118, assuming all Cys residues are reduced
Estimated half-life:
The N-terminal of the sequence considered is M (Met).
The estimated half-life is: 30 hours (mammalian reticulocytes, in vitro).
>20 hours (yeast, in vivo).
>10 hours (Escherichia coli, in vivo).
Instability index:
The instability index (II) is computed to be 29.16
This classifies the protein as stable.
Aliphatic index: 75.14
Grand average of hydropathicity (GRAVY): -0.451
EXPASY ——protparam

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