英文名称
HP | Haptoglobin Recombinant Rabbit mAb
英文别名
BP; HP2ALPHA2; HPA1S; HP-1; preHP2; Ba1-647; HPT_HUMAN; HP; Zonulin; HPT_MOUSE; HPT_RAT; Liver regeneration-related protein LRRG173; haptoglobin
免疫原
A synthesized peptide derived from human Haptoglobin: 390-406
纯化方法
affinity purified by Protein A
储存液
0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.
保存条件
Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.
注意事项
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
产品介绍
haptoglobin是一种酸性糖蛋白,属α2唾液酸糖蛋白,主要由肝脏合成,也可在脂肪细胞、皮肤、脾、肌肉、肺内等合成。
背景资料
As a result of hemolysis, hemoglobin is found to accumulate in the kidney and is secreted in the urine. Hemoglobin/haptoglobin complexes are rapidly cleared by the macrophage CD163 scavenger receptor expressed on the surface of liver Kupfer cells through an endocytic lysosomal degradation pathway.
亚基
Tetramer of two alpha and two beta chains; disufide-linked. The Hemoglobin/haptoglobin complex is composed of a haptoglobin dimer bound to two hemoglobin alpha-beta dimers. Interacts with CD163.
组织特异性
Expressed by the liver and secreted in plasma.
疾病
Anhaptoglobinemia (AHP) [MIM:614081]: A condition characterized by the absence of the serum glycoprotein haptoglobin. Serum levels of haptoglobin vary among normal persons: levels are low in the neonatal period and in the elderly, differ by population, and can be influenced by environmental factors, such as infection. Secondary hypohaptoglobinemia can occur as a consequence of hemolysis, during which haptoglobin binds to free hemoglobin. Congenital haptoglobin deficiency is a risk factor for anaphylactic non-hemolytic transfusion reactions. Note=The disease is caused by mutations affecting the gene represented in this entry.
相似性
Belongs to the peptidase S1 family. Contains 1 peptidase S1 domain. Contains 2 Sushi (CCP/SCR) domains.
功能
As a result of hemolysis, hemoglobin is found to accumulate in the kidney and is secreted in the urine. Haptoglobin captures, and combines with free plasma hemoglobin to allow hepatic recycling of heme iron and to prevent kidney damage. Haptoglobin also acts as an Antimicrobial; Antioxidant, has antibacterial activity and plays a role in modulating many aspects of the acute phase response. Hemoglobin/haptoglobin complexes are rapidely cleared by the macrophage CD163 scavenger receptor expressed on the surface of liver Kupfer cells through an endocytic lysosomal degradation pathway.
Uncleaved haptoglogin, also known as zonulin, plays a role in intestinal permeability, allowing intercellular tight junction disassembly, and controlling the equilibrium between tolerance and immunity to non-self antigens.