@@ PSGL-1 ; selectin
O-linked glycosylation | Detailed Pedia
PSGL-1 has several O-glycans to extend the ligand away from the cell surface. An sLex epitope allows interactions with the receptor for leukocyte localisation.
@@ 分类
--Recognition by Animal Lectins in Antiviral--YangLiu-2015
在人树突状细胞 (DC) 特异性细胞间粘附分子 3 抓取非整合素 (DC-SIGN) 和相关受体 DC-SIGN 受体 (DC-SIGNR) 中发现的 C 型凝集素样结构域 (CTLD)
CLECT_DC-SIGN_like:在人树突状细胞 (DC) 特异性细胞间粘附分子 3 抓取非整合素 (DC-SIGN) 和相关受体 DC-SIGN 受体 (DC-SIGNR) 中发现的 C 型凝集素样结构域 (CTLD)。该组还含有类似于人类肝积木蛋白受体(ASGP-R)和朗格林蛋白的蛋白质。这些蛋白质是具有CTLD外域的II型膜蛋白。CTLD是指与C型凝集素的碳水化合物识别结构域(CRD)同源的结构域。DC-SIGN被认为介导树突状细胞和静息T细胞之间的初始接触,也可能介导DC在上皮上的滚动。DC-SIGN和DC-SIGNR与人体组织以及病原体(包括寄生虫,细菌和病毒)上的寡糖结合。DC-SIGN和DC-SIGNR与HIV增强T细胞病毒感染结合。DC-SIGN和DC-SIGNR是同源四聚体的,包含四个CTLD,由α螺旋的盘绕线圈稳定。肝ASGP-R是一种内吞循环受体,通过网格蛋白包被的坑介导的内吞途径结合并内化在其N-连接碳水化合物链上具有末端半乳糖或N-乙酰半乳糖胺残基的去唾液酸化糖蛋白,并将它们递送到溶酶体进行降解。有人提出,携带末端Sia(唾液酸)α2,6GalNAc和Siaα2,6Gal的糖蛋白是ASGP-R的内源性配体,并且ASGP-R参与调节携带α2,6-连接Sia的血清糖蛋白的相对浓度。人ASGP-R是由两个亚基组成的异质低聚物,这两个亚基都存在于该组中。朗格林在树突状白细胞的一个亚群中表达,即朗格汉斯细胞(LC)。朗格林诱导Birbeck颗粒(BGs)的形成,并在内化后与这些BGs结合。Langerin以钙依赖性方式与含有甘露糖和相关糖的糖缀合物结合,介导其摄取和降解。朗格林分子以三聚体的形式低聚,三个CTLD由α螺旋的螺旋线圈结合在一起。
@@ Pattern recognition receptors (PRRs)
Pattern recognition receptor
See also: List of pattern recognition receptors
See also: Pathogen-associated molecular pattern and Damage-associated molecular pattern
- Membrane-bound PRRs
- Toll-like receptors (TLRs)
- C-type lectin receptors (CLRs)
See also: C-type lectin
- DEC205 (CD205Group 2 CLRs - Asialoglycoprotein receptor family
- DC-SIGN (CD209)
- Class B - Two transmembrane domains
- SCARB1
- SCARB2
- CD36 (SCARB3)
- Others
- CD68
- LOX-1
- Formyl peptide receptors (FPRs)
- Cytoplasmic PRRs
- NOD-like receptors (NLRs)
- NLRA (A for acidic transactivating domain)
- CIITA
- NLRB (B for BIR, or Inhibitor of apoptosis domain)
- NAIP
- NLRC (C for CARD domain)
- NOD1
- RIG-I-like receptors (RLRs)
- RIG-I
- MDA5
- LGP2
- Secreted PRRs
- Complement system (see complement proteins section)
- Collectins
- Mannan-binding lectin (MBL)
- Surfactant protein A (SP-A)
- Surfactant protein D (SP-D)
- Peptidoglycan recognition proteins (PGRPs
- Ficolins
Complement receptor
- CR1 (CD35)
- CR2 (CD21)
- CR3 - Heterodimer: CD11b / CD18
- CR4 - Heterodimer: CD11c / CD18
- CRIg (Complement receptor of the immunoglobulin family)
- Anaphylatoxin receptors
- C3a receptor
- C5a receptor (CD88)
- C5AR2
磷脂:细胞凋亡和免疫调节的关键参与者
Phospholipids= Key Players in Apoptosis and Immune Regulation-2009
## Tn 多凝聚;
唾液酸 TN抗原 tumor sialyl-Tn (sTn)
tumor sialyl-Tn (sTn)
Tn antigen refers to the monosaccharide structure N-acetylgalactosamine (GalNAc) linked to serine or threonine by a glycosidic bond, considered as an antigen. The initials
stand for Thomsen-nouveau. Tn antigen is expressed in most carcinomas.
Addition of an additional galactose monosaccharide creates a disaccharide antigen: the Thomsen-Friedenreich antigen (Gal(b1-3)GalNAc). The sialyl Tn antigen (STn antigen) is
formed by elongation with sialic acid (Neu5Ac(a2-6)GalNAc) rather than galactose.
--Collectin-12 mediates C3-independent docking of properdin that activates,P complement.pdf
Collectin-12 _ Detailed +Tn antigen.
J Biochem . 2003 Mar;133(3):271-7. doi: 10.1093/jb/mvg037.
SRCL/CL-P1 recognizes GalNAc and a carcinoma-associated antigen, Tn antigen