- 同
- P2 integrin
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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/03/15 03:47:01」(JST)
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Integrin, beta 2 (complement component 3 receptor 3 and 4 subunit) |
PDB rendering based on 1l3y.
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Available structures |
PDB |
Ortholog search: PDBe, RCSB |
List of PDB id codes |
1JX3, 1L3Y, 1YUK, 2JF1, 2P26, 2P28, 2V7D, 3K6S, 3K71, 3K72, 4NEH, 4NEN
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Identifiers |
Symbols |
ITGB2 ; CD18; LAD; LCAMB; LFA-1; MAC-1; MF17; MFI7 |
External IDs |
OMIM: 600065 MGI: 96611 HomoloGene: 20092 ChEMBL: 3631 GeneCards: ITGB2 Gene |
Gene ontology |
Molecular function |
• glycoprotein binding
• protein binding
• protein kinase binding
• ICAM-3 receptor activity
• metal ion binding
• cell adhesion molecule binding
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Cellular component |
• plasma membrane
• integrin complex
• cell surface
• membrane
• integrin alphaL-beta2 complex
• receptor complex
• extracellular exosome
• extracellular vesicle
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Biological process |
• toll-like receptor signaling pathway
• apoptotic process
• inflammatory response
• cell adhesion
• leukocyte cell-cell adhesion
• cell-matrix adhesion
• integrin-mediated signaling pathway
• cell-cell signaling
• blood coagulation
• regulation of cell shape
• extracellular matrix organization
• neutrophil chemotaxis
• heterotypic cell-cell adhesion
• toll-like receptor 4 signaling pathway
• endodermal cell differentiation
• receptor clustering
• innate immune response
• regulation of peptidyl-tyrosine phosphorylation
• regulation of immune response
• leukocyte migration
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Sources: Amigo / QuickGO |
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RNA expression pattern |
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More reference expression data |
Orthologs |
Species |
Human |
Mouse |
Entrez |
3689 |
16414 |
Ensembl |
ENSG00000160255 |
ENSMUSG00000000290 |
UniProt |
P05107 |
P11835 |
RefSeq (mRNA) |
NM_000211 |
NM_008404 |
RefSeq (protein) |
NP_000202 |
NP_032430 |
Location (UCSC) |
Chr 21:
44.89 – 44.93 Mb |
Chr 10:
77.53 – 77.57 Mb |
PubMed search |
[1] |
[2] |
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Integrin beta-2 (CD18) is a protein that in humans is encoded by the ITGB2 gene.
It is the beta subunit of four different structures:
- LFA-1 (paired with CD11a)
- Macrophage-1 antigen (paired with CD11b)
- Integrin alphaXbeta2 (paired with CD11c)
- Integrin alphaDbeta2 (paired with CD11d)
Contents
- 1 Function
- 2 Interactions
- 3 See also
- 4 References
- 5 Further reading
- 6 External links
Function
The ITGB2 protein product is the integrin beta chain beta 2. Integrins are integral cell-surface proteins composed of an alpha chain and a beta chain. A given chain may combine with multiple partners resulting in different integrins. For example, beta 2 combines with the alpha L chain to form the integrin LFA-1, and combines with the alpha M chain to form the integrin Mac-1. Integrins are known to participate in cell adhesion as well as cell-surface mediated signalling.[1] In humans lack of CD18 causes Leukocyte Adhesion Deficiency, a disease defined by a lack of leukocyte extravasation from blood into tissues. The beta 2 integrins have also been found in a soluble form.[2] The soluble beta 2 integrins are ligand binding and plasma levels are inversely associated with disease activity in the autoimmune disease spondyloarthritis.[3]
Interactions
CD18 has been shown to interact with:
- FHL2,[4]
- GNB2L1,[5]
- ICAM-1,[6][7][8] and
- PSCD1.[9][10]
See also
- leukocyte adhesion deficiency
- integrin
References
- ^ "Entrez Gene: ITGB2 integrin, beta 2 (complement component 3 receptor 3 and 4 subunit)".
- ^ Gjelstrup, L. C.; Boesen, T.; Kragstrup, T. W.; Jorgensen, A.; Klein, N. J.; Thiel, S.; Deleuran, B. W.; Vorup-Jensen, T. (8 September 2010). "Shedding of Large Functionally Active CD11/CD18 Integrin Complexes from Leukocyte Membranes during Synovial Inflammation Distinguishes Three Types of Arthritis through Differential Epitope Exposure". The Journal of Immunology 185 (7): 4154–4168. doi:10.4049/jimmunol.1000952.
- ^ Kragstrup, Tue W; Jalilian, Babak; Hvid, Malene; Kjærgaard, Anders; Østgård, René; Schiøttz-Christensen, Berit; Jurik, Anne G; Robinson, William H; Vorup-Jensen, Thomas; Deleuran, Bent (2014). "Decreased plasma levels of soluble CD18 link leukocyte infiltration with disease activity in spondyloarthritis". Arthritis Research & Therapy 16 (1): R42. doi:10.1186/ar4471.
- ^ Wixler V, Geerts D, Laplantine E, Westhoff D, Smyth N, Aumailley M, Sonnenberg A, Paulsson M (Oct 2000). "The LIM-only protein DRAL/FHL2 binds to the cytoplasmic domain of several alpha and beta integrin chains and is recruited to adhesion complexes". The Journal of Biological Chemistry 275 (43): 33669–78. doi:10.1074/jbc.M002519200. PMID 10906324.
- ^ Liliental J, Chang DD (Jan 1998). "Rack1, a receptor for activated protein kinase C, interacts with integrin beta subunit". The Journal of Biological Chemistry 273 (4): 2379–83. doi:10.1074/jbc.273.4.2379. PMID 9442085.
- ^ Kotovuori A, Pessa-Morikawa T, Kotovuori P, Nortamo P, Gahmberg CG (Jun 1999). "ICAM-2 and a peptide from its binding domain are efficient activators of leukocyte adhesion and integrin affinity". Journal of Immunology 162 (11): 6613–20. PMID 10352278.
- ^ Lu C, Takagi J, Springer TA (May 2001). "Association of the membrane proximal regions of the alpha and beta subunit cytoplasmic domains constrains an integrin in the inactive state". The Journal of Biological Chemistry 276 (18): 14642–8. doi:10.1074/jbc.M100600200. PMID 11279101.
- ^ Huang C, Springer TA (Aug 1995). "A binding interface on the I domain of lymphocyte function-associated antigen-1 (LFA-1) required for specific interaction with intercellular adhesion molecule 1 (ICAM-1)". The Journal of Biological Chemistry 270 (32): 19008–16. doi:10.1074/jbc.270.32.19008. PMID 7642561.
- ^ Rietzler M, Bittner M, Kolanus W, Schuster A, Holzmann B (Oct 1998). "The human WD repeat protein WAIT-1 specifically interacts with the cytoplasmic tails of beta7-integrins". The Journal of Biological Chemistry 273 (42): 27459–66. doi:10.1074/jbc.273.42.27459. PMID 9765275.
- ^ Geiger C, Nagel W, Boehm T, van Kooyk Y, Figdor CG, Kremmer E, Hogg N, Zeitlmann L, Dierks H, Weber KS, Kolanus W (Jun 2000). "Cytohesin-1 regulates beta-2 integrin-mediated adhesion through both ARF-GEF function and interaction with LFA-1". The EMBO Journal 19 (11): 2525–36. doi:10.1093/emboj/19.11.2525. PMC 212768. PMID 10835351.
Further reading
- Bunting M, Harris ES, McIntyre TM, Prescott SM, Zimmerman GA (Jan 2002). "Leukocyte adhesion deficiency syndromes: adhesion and tethering defects involving beta 2 integrins and selectin ligands". Current Opinion in Hematology 9 (1): 30–5. doi:10.1097/00062752-200201000-00006. PMID 11753075.
- Roos D, Law SK (2003). "Hematologically important mutations: leukocyte adhesion deficiency". Blood Cells, Molecules & Diseases 27 (6): 1000–4. doi:10.1006/bcmd.2001.0473. PMID 11831866.
- Gahmberg CG, Fagerholm S (Aug 2002). "Activation of leukocyte beta2-integrins". Vox Sanguinis. 83 Suppl 1: 355–8. doi:10.1111/j.1423-0410.2002.tb05333.x. PMID 12617168.
- Schymeinsky J, Mócsai A, Walzog B (Aug 2007). "Neutrophil activation via beta2 integrins (CD11/CD18): molecular mechanisms and clinical implications". Thrombosis and Haemostasis 98 (2): 262–73. doi:10.1160/th07-02-0156. PMID 17721605.
PDB gallery
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1l3y: INTEGRIN EGF-LIKE MODULE 3 FROM THE BETA-2 SUBUNIT
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1yuk: The crystal structure of the PSI/Hybrid domain/ I-EGF1 segment from the human integrin beta2 at 1.8 resolution
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External links
- CD18 antigen at the US National Library of Medicine Medical Subject Headings (MeSH)
- ITGB2 Info with links in the Cell Migration Gateway
Cluster of differentiation by lineage
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Lymphoid |
B cell |
- Pre-B cell: CD10/CALLA
- CD79A
- mature: CD19
- CD20
- CD21/CR2
- CD23/FcεRII
- CD127
- CD40
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T/NK |
T cell |
- CD1
- CD4
- CD8
- CD13
- CD18
- CD26
- CD27
- CD28
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NK cell |
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All |
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All |
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Myeloid |
CFU-GM/
Myelomonocyte |
- CD11c
- CD14
- CD15
- CD31
- CD64
- CD68
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MEP |
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All (pan-myeloid) |
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Stem cell |
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Proteins: complement system (C, L, A)
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Activators/enzymes |
Early |
- A: Factor B
- Factor D
- Factor P/Properdin
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Middle |
- C3-convertase
- C5-convertase
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Late |
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Inhibitors |
- CLA: C1-inhibitor
- Decay-accelerating factor/CD59
- Factor I
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Complement receptors |
- CR1
- CR2
- CR3
- CR4
- CD11b/CD11c/CD18
- Anaphylatoxin
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Membrane proteins: cell adhesion molecules
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Calcium-independent |
IgSF CAM |
- N-CAM (Myelin protein zero)
- ICAM (1, 5)
- VCAM-1
- PE-CAM
- L1-CAM
- Nectin (PVRL1, PVRL2, PVRL3)
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Calcium-dependent |
Cadherins |
Classical |
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Desmosomal |
- Desmoglein (DSG1, DSG2, DSG3, DSG4)
- Desmocollin (DSC1, DSC2, DSC3)
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Protocadherin |
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Unconventional/ungrouped |
- T-cadherin
- CDH4
- CDH5
- CDH6
- CDH8
- CDH11
- CDH12
- CDH15
- CDH16
- CDH17
- CDH9
- CDH10
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Selectins |
- E-selectin
- L-selectin
- P-selectin
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Integrins |
- LFA-1 (CD11a+CD18)
- Integrin alphaXbeta2 (CD11c+CD18)
- Macrophage-1 antigen (CD11b+CD18)
- VLA-4 (CD49d+CD29)
- Glycoprotein IIb/IIIa (ITGA2B+ITGB3)
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Other |
- Lymphocyte homing receptor: CD44
- L-selectin
- integrin (VLA-4, LFA-1)
- Carcinoembryonic antigen
- CD22
- CD24
- CD44
- CD146
- CD164
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Integrins
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Alpha |
- A1
- A2
- A3
- A4
- A5
- A6
- A7
- A8
- A9
- A10
- A11
- AD
- AE
- AL
- AM
- AV
- AX
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Beta |
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Dimers |
Cytoadhesin receptor: |
- Integrin alpha6beta4
- Glycoprotein IIb/IIIa
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Fibrinogen receptor: |
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Fibronectin receptor: |
- Integrin alpha2beta1
- Integrin alpha4beta1
- Integrin alpha5beta1
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Leukocyte-adhesion receptor: |
- LFA-1
- Macrophage-1 antigen
- Integrin alphaXbeta2
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Very late antigen receptor: |
- Integrin alpha1beta1
- Integrin alpha2beta1
- Integrin alpha3beta1
- VLA-4
- Alpha-5 beta-1
- Integrin alpha6beta1
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Vitronectin receptor: |
- Alpha-v beta-3
- Alpha-v beta-5
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see also cell surface receptor deficiencies
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UpToDate Contents
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English Journal
- Hyaluronan and dextran modified tubes resist cellular activation with blood contact.
- Eckmann DM, Tsai IY, Tomczyk N, Weisel JW, Composto RJ.SourceDepartment of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA 19104, USA. eckmanndm@uphs.upenn.edu
- Colloids and surfaces. B, Biointerfaces.Colloids Surf B Biointerfaces.2013 Aug 1;108:44-51. doi: 10.1016/j.colsurfb.2013.02.013. Epub 2013 Feb 26.
- This study was undertaken to evaluate the effects of thin film hyaluronic acid and dextran surface coatings to blunt cellular activation in a laboratory model of extracorporeal blood circulation. The inner lumen surface of polyurethane (PU) and poly(vinyl) chloride (PVC) tubing was grafted with hyal
- PMID 23524078
- Intraluminal crawling versus interstitial neutrophil migration during inflammation.
- Pick R, Brechtefeld D, Walzog B.SourceWalter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-University, Munich, Germany. robert.pick@lrz.uni-muenchen.de
- Molecular immunology.Mol Immunol.2013 Aug;55(1):70-5. doi: 10.1016/j.molimm.2012.12.008. Epub 2013 Jan 10.
- Site-directed trafficking of polymorphonuclear neutrophils (PMN) to their target regions within the tissue is an important prerequisite for efficient host defense during the acute inflammatory response. This process requires intraluminal crawling of PMN on the activated endothelial cells to their ex
- PMID 23312337
- The molecular basis of leukocyte recruitment and its deficiencies.
- Schmidt S, Moser M, Sperandio M.SourceWalter Brendel Center for Experimental Medicine, Ludwig-Maximilians-Universität, Munich, Germany.
- Molecular immunology.Mol Immunol.2013 Aug;55(1):49-58. doi: 10.1016/j.molimm.2012.11.006. Epub 2012 Dec 17.
- The innate immune system responds to inflammation, infection and injury by recruiting neutrophils and other leukocytes. These cells are able to leave the intravascular compartment in a process called leukocyte recruitment. This process involves several distinct steps: selectin-mediated rolling, firm
- PMID 23253941
Japanese Journal
- 〈原著〉AIDS関連中枢神経原発悪性リンパ腫の発生におけるリンパ球機能関連抗原-1(LFA-1)の関与
- 笹川 淳,前田 裕弘,頼 晋也,平瀬 主税,山口 晃史,森田 泰慶,松村 到
- 近畿大学医学雑誌 37(1-2), 45-52, 2012-03-00
- … 鎖であるCD18の発現は, HIV感染者由来のB-LCL(B-LCL_HIV)と健常者由来のB-LCL(B-LCL_N)の何れにおいても, EBV感染前のB細胞と比較して増強していた.また, B-LCL_HIVはB-LCL_NよりCD18を強く発現していた.B-LCL_<HIV>はB-LCL_Nに比較し, LFA-1のリガンドである細胞接着分子-1(intercellular adhesion molecule-1, ICAM-1)を発現するヒト頭部血管肉腫細胞株(ISO-HAS)により高率に接着した.CD18の発現強 …
- NAID 120004226572
- 9,10-Phenanthrenequinone Induces Monocytic Differentiation of U937 Cells through Regulating Expression of Aldo-Keto Reductase 1C3
- Matsunaga Toshiyuki,Hosogai Mika,Arakaki Marina [他],Endo Satoshi,El-Kabbani Ossama,Hara Akira
- Biological and Pharmaceutical Bulletin 35(9), 1598-1602, 2012
- … Flow cytometric analyses of U937 cells after long-term exposure to 9,10-PQ revealed induction of differentiation that was evidenced by increasing expression of CD11b/CD18, a cell-surface marker for monocytic differentiation into macrophages. …
- NAID 130001872073
Related Links
- CD18抗原は、分子量95kDaの膜糖タンパクで、CD11a、CD11b、CD11c(αL、αM、αX)と非共有結合的に結合したヘテロダイマーを形成します。すべてのヒト白血球と、活性化血小板、巨核球系細胞株に発現します。
- クローンM18/2はCD18抗原を認識します。CD18は95 kDの糖タンパク質で、インテグリンβ2(ITGB2)としても知られています。CD18は、CD11a、CD11b、CD11cと非共有結合して、それぞれLFA-1、Mac-1、gp150/95を形成し、白血球の ...
Related Pictures
★リンクテーブル★
[★]
- 英
- adhesion molecule
- 同
- 接着因子
- 関
接着分子のファミリー
白血球の相互作用に関与している接着分子 (IMM.87)
白血球の相互作用に関与している免疫グロブリンスーパーファミリーの接着分子 (IMM.329)
-接着分子
-細胞接着分子
-カドヘリン
[★]
- 英
- leukocyte, leucocyte (Z), white blood cell (Z), WBC, white corpuscle, white cell
- 関
- 赤血球、血球、血液
白血球
基準値
- 4000-9000 (/μl) (2007前期解剖学授業プリント)
- 異常値の出るメカニズム第5版
- 5000- 8400 (/μl) (健常者の2/3)
- 4500-11000 (/μl) (95%範囲)
年齢との関連
生理的な変動
- 精神的ストレス↑ → 交感神経の刺激により好中球の血管壁遊離が促進されるため
- 午前↓、午後↑
基準値
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07解
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異メ
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流マ
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HIM.A-1
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顆粒球
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好中球
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桿状核球
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40~70
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44~66
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40~60
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4~14
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0~5
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分葉核球
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43~59
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40~70
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好酸球
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2~4
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0~ 4
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2~4
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0~6
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好塩基球
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0~2
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0~0.5
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0~2
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0~2
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無顆粒球
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リンパ球
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25~40
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30~38
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26~40
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20~50
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単球
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3~6
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0~ 5
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3~6
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4~8
|
- 07解: 2007前期解剖学授業プリント
- 異メ: 異常値の出るメカニズム第5版 p.91
- 流マ: 流れが分かる実践検査マニュアル上巻 p.10
(margination)
- 1. 赤血球は軽く早く流れるので血管の中央をながれ、白血球は血管のへりを流れている
(rolling)
(adheresion & arrested)
(transmigration)
- 6. 白血球と血管内皮細胞に発現しているPECAM-1(CD31)がお互い接着し、白血球が血管内皮細胞の間隙を通って細胞外マトリックスに入る
白血球の染色
- 好酸性:赤く染まる→ヘモグロビン
- 好塩基性:青く染まる→リボソーム、核内のヒストン蛋白
- 好酸性でも好塩基性でもない:淡いピンクに染まる
- MPOをもつ:顆粒球(前骨髄球~分葉核球)、単球(前単球~単球)
- MPOをもたない:リンパ球系細胞
- 好中球:長鎖エステルを分解
- 単球:短鎖エステルを分解
関節液
- 炎症 感染
- 200 2000 20000
- 500 5000 50000
臨床関連
- 白血球のインテグリンが欠損または減少する先天性疾患
- 反復性の細菌皮膚感染
- SIRSの診断基準:<4,000/ul or >12,000/ul
[★]
- 英
- cluster of differentiation, CD
- Bリンパ球 CD10,CD19,CD20
- Tリンパ球 CD2,CD3,CD5,CD7
- 幹細胞 CD34
- 顆粒球 CD13,CD33
- 単球 CD14:LPSをリガンドとし、Toll-like receptorと共役して細胞内シグナルを伝達する分子。
- 巨核球 CD41(GpIIb),CD42(GpIb)
- NK細胞:CD16(IgGのFc部に対する受容体)、CD56(NCAM-I)
[★]
- 英
- integrin, integrins
- 関
インテグリン IMM.87
[★]
- 英
- leukocyte adhesion deficiency syndrome, leukocyte adhesion deficiency, LAD
- 同
- 白血球接着異常症
- 関
- 免疫不全症候群
- 好中球機能異常症 phagocytic cell deficiency
概念
病因
- 遺伝子異常により、白血球における接着分子の発現異常を来すことによる
-
- β2-インテグリン(CD18)(CD11a:CD18/CD11b:CD18/CD11c:CD18)の欠損
- セレクチンのリガンド;ルイス型糖鎖の欠損:type II
疫学
遺伝
病態
- 白血球表面の接着分子 → 感染炎症部位に白血球が浸潤不能 → 感染症遷延
症状
- 生後すぐに反復感染する
- 化膿性細菌や真菌への重篤な感染症。難治性の皮膚感染、中耳炎、副鼻腔炎などの反復感染
- delayed separation of umbilicus
診断
検査
- 白血球数:増多 ← 持続性の顆粒球増多症
- 好中球数:正常
治療
予後
予防
[★]
- 英
- CD18 antigen
- 関
- β2インテグリン、インテグリンβ2
[★]
- 同
- CR4&p150 95&CD11c/CD18
- 同
- CR4&p150 95&CD11c/CD18
[★]
- 同
- integrin αMβ2&Mac-1
- 同
- integrin αMβ2&Mac-1
[★]
CD18抗原
- 関
- beta2 integrin、integrin beta2
[★]
- 同
- leucine-6, CD1A through E
種類
発現組織
- 胸腺皮質、ランゲルハンス細胞、樹状細胞、B細胞(CD1c)、腸上皮、平滑筋、血管上皮(CD1d)
分子量
機能
- MHC class I-like molecule, associated with β2-microgloulin. Has specialized role in presentation of lipid antigens
[★]