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SIGMA| 人血清白蛋白

点击次数：23发布时间：2016/7/12 16:21:24

SIGMA| 人血清白蛋白

更新日期：2021/6/30 9:11:20

所 在 地：中国大陆

产品型号：

简单介绍：别名: 人血清白蛋白第五组分，HSA,A9511-100MGA9511-500MGA9511-1GA9511-5GA9511-10GA9511-25G研究领域: 细胞生物学

相关标签：SIGMA  人血清白蛋白 

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详细内容

 ALBUMIN, HUMAN

 

The source material for all human albumins made by Sigma has tested negative for HIV ａnd HBSAG.

Sigma tests the solubility of human albumin powders in water at 50 mg/. In the experience of Sigma production chemists, aqueous aliquots stored at –20 °C are stable for several months. Repeated freezing ａnd thawing of solutions is not recommended.

A9511 Albumin from human serum, lyophilized powder, ≥97% (agarose gel electrophoresis), H2O: soluble50 mg/mL ≥97% (agarose gel electrophoresis) Sigma
 
A1653 Albumin from human serum, lyophilized powder, ≥96% (agarose gel electrophoresis), H2O: soluble50 mg/mL ≥96% (agarose gel electrophoresis) Sigma
 
A3782 Albumin from human serum, lyophilized powder, Fatty acid free, Globulin free, ≥99% (agarose gel electrophoresis), H2O: soluble50 mg/mL ≥99% (agarose gel electrophoresis) Sigma
 
A8763 Albumin from human serum, lyophilized powder, essentially globulin free, ≥99% (agarose gel electrophoresis), H2O: soluble20 mg/mL ≥99% (agarose gel electrophoresis) Sigma
 
A1887 Albumin from human serum, lyophilized powder, essentially fatty acid free, H2O: soluble50 mg/mL, clear to slightly hazy, yellow   Sigma
 
A4327 Albumin from human serum, lyophilized powder, essentially protease free, ≥96% (agarose gel electrophoresis), H2O: soluble50 mg/mL ≥96% (agarose gel electrophoresis) Sigma
 
A5843 Albumin from human serum, lyophilized powder, low endotoxin, H2O: soluble50 mg/mL   Sigma
 
05420 Albumin from human serum, lyophilized powder, ≥95.0% (agarose gel electrophoresis),   ≥95.0% (agarose gel electrophoresis) Sigma
 

 

PRODUCTNO.

 

PREPARATION/PURIFICATION

 

SPECIAL CHARACTERISTICS

 

A 1653

Fraction V1

From human serum.

 

Powder

96-99% by agarose gel (remainder mostly globulins)

 

A 2817

Fraction V1

 

Powder

96-99% by agarose gel (remainder mostly globulins)

Produced specifically for bulk usage.

 

A 1887

Fraction V1, heat step2 Prepared from A 1653.

 

Powder

³96% by agarose gel

Essentially fatty acid free (∼0.005%)

 

A 9511

 

1× crystallized ａnd lyophilized.

Prepared from A 1653 using method IV of Cohn, et al.3

 

Powder

97-99% by agarose gel

 

A 8763

Prepared from A 1653.4

 

Powder

Essentially globulin free

 

A 3782

Prepared from A 8763.4

 

Powder

Essentially fatty acid free (∼0.005%) Essentially globulin free

 

A 4327

 

Prepared from A 1653.

 

Powder

³96% by agarose gel

Essentially protease free (<0.0001 u/mg protein) Essentially alkaline phosphatase free (0.001 u/mg protein) Essentially peroxidase free (<0.001 u/mg protein)

 

A 3173

 

Prepared from A 2817.

 

Powder

Low endotoxin content (²0.1 ng/mg protein)

 

A 6784

 

Contains approx. 0.85% NaCl. Contains 0.05% NaN3 as preservative. Aseptically filled.

 

10% Solution

 

A 6909

 

Contains approx. 0.85% NaCl. Contains 0.05% NaN3 as preservative. Aseptically filled.

 

30% Solution

 

A 9080

 

From human plasma. Contains approx. 0.85% NaCl. Aseptically filled.

 

30% Solution Protease free.

 

A 2830

 

From human serum.

 

Solution in 40 mM potassium phosphate, pH 7.0

14C-Methylated

5-50 ìCi per mg protein

CAS NUMBER: 70024-90-7

MOLECULAR WEIGHT: 66,248.35 or 66,4378 (based on amino acid composition)

 

STRUCTURE:5

 

The amino acid sequence ａnd structure of human albumin have been determined. Human albumin is a protein with no carbohydrate content. It is a single polypeptide chain with one free sulfhydryl group on residue # 34 ａnd 17 intrachain disulfide bonds.

 

Amino Acid      Asp Asn Thr Ser Glu Gln Pro Gly Ala Cys Val Met Ile Leu Tyr Phe His Lys Trp Arg

Residues         39    15   30   22  60   23  25

 

PHYSICAL  PROPERTIES:5

12 63

35  39   6   8  61 18     30  16  58  1              23

Sedimentation constant, S20,W  X  1013

 

4.6 (monomer), 6.5 (dimer)

Diffusion constant, D20,W  X 107

 

6.1

Partial specific volume, V20

 

0.733

Intrinsic viscosity, ç

 

0.042

Frictional ratio, f/f0

 

1.28

Overall dimensions, Å

 

38 X 150

Isoelectric point (Ã/2 = 0.15)

 

4.7

Isoionic point (Ã/2 = 0)

 

5.2

Electrophoretic mobility, pH 8.6, Ã/2 = 0.15

 

-5.9

Refractive index increment (578 nm) X   10-3

 

1.89

Optical absorbance, A279 nm  (1  gram/liter)

 

0.531

Mean residue rotation,  [m＇]233

8590

 

Mean residue ellipticity

 

17 [è]209 nm; 16 [è]222 nm

Estimated á-helix, %

 

48

Estimated â-form, %

 

15

SOLUBILITY / SOLUTION STABILITY:

 

 

 

 

储存与安全
储存: 
2-8℃

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