Human Ubiquitin: Properties and Analysis

Ubiquitin Structure

MET - GLN - ILE - PHE - VAL - LYS - THR - LEU - THR - GLY
LYS - THR - ILE - THR - LEU - GLU - VAL - GLU - PRO - SER
ASP - THR - ILE - GLU - ASN - VAL - LYS - ALA - LYS - ILE
GLN - ASP - LYS - GLU - GLY - ILE - PRO - PRO - ASP - GLN
GLN - ARG - LEU - ILE - PHE - ALA - GLY - LYS - GLN - LEU
GLU - ASP - GLY - ARG - THR - LEU - SER - ASP - TYR - ASN
ILE - GLN - LYS - GLU - SER - THR - LEU - HIS - LEU - VAL
LEU - ARG - LEU - ARG - GLY - GLY

Ubiquitin Analysis

Ubiquitin Analysis Entire Protein
Length 76 aa
Molecular Weight 8564.47 m.w.
1 microgram = 116.761 pMoles
Molar Extinction Coefficient 1280
1 A[280] corr. to 6.69 mg/ml
A[280] of 1 mg/ml 0.15 AU
Isoelectric Point 6.79
Charge at pH 7 -0.14
Amino Acid(s) Number
count
% by
weight
% by
frequency
Charged (RKHYCDE) 24 36.35 31.58
Acidic (DE) 11 15.61 14.47
Basic (KR) 11 17.35 14.47
Polar (NCQSTY) 19 24.92 25.00
Hydrophobic (AILFWV) 24 31.02 31.58
A Ala 2 1.80 2.63
C Cys 0 0.00 0.00
D Asp 5 6.71 6.58
E Glu 6 8.90 7.89
F Phe 2 3.33 2.63
G Gly 6 4.54 7.89
H His 1 1.56 1.32
I Ile 7 9.26 9.21
K Lys 7 10.32 9.21
L Leu 9 11.91 11.84
M Met 1 1.50 1.32
N Asn 2 2.66 2.63
P Pro 3 3.48 3.95
Q Gln 6 8.84 7.89
R Arg 4 7.03 5.26
S Ser 3 3.18 3.95
T Thr 7 8.41 9.21
V Val 4 4.73 5.26
W Trp 0 0.00 0.00
Y Tyr 1 1.83 1.32
B Asx 7 9.38 9.21
Z Glx 12 17.75 15.79
X Xxx 0 0.00 0.00