Entry
Name
Phagosome - Ursus maritimus (polar bear)
Description
Phagocytosis is the process of taking in relatively large particles by a cell, and is a central mechanism in the tissue remodeling, inflammation, and defense against infectious agents. A phagosome is formed when the specific receptors on the phagocyte surface recognize ligands on the particle surface. After formation, nascent phagosomes progressively acquire digestive characteristics. This maturation of phagosomes involves regulated interaction with the other membrane organelles, including recycling endosomes, late endosomes and lysosomes. The fusion of phagosomes and lysosomes releases toxic products that kill most bacteria and degrade them into fragments. However, some bacteria have strategies to escape the bactericidal mechanisms associated with phagocytosis and survive within host phagocytes.
Class
Cellular Processes; Transport and catabolism
BRITE hierarchy
Pathway map
Ortholog table
Other DBs
Organism
Ursus maritimus (polar bear) [GN:
umr ]
Gene
103680441 DLA class I histocompatibility antigen, A9/A9 alpha chain-like isoform X1 [KO:K06751 ]
103656357 H-2 class I histocompatibility antigen, Q10 alpha chain [KO:K06751 ]
103680561 DLA class I histocompatibility antigen, A9/A9 alpha chain-like [KO:K06751 ]
103672268 class I histocompatibility antigen, Gogo-OKO alpha chain [KO:K06751 ]
103682344 patr class I histocompatibility antigen, A-2 alpha chain-like [KO:K06751 ]
121104340 LOW QUALITY PROTEIN: DLA class I histocompatibility antigen, A9/A9 alpha chain-like [KO:K06751 ]
103665506 HLA class II histocompatibility antigen, DO alpha chain [KO:K06752 ]
103665508 HLA class II histocompatibility antigen, DM alpha chain isoform X1 [KO:K06752 ]
103665509 HLA class II histocompatibility antigen, DM beta chain isoform X1 [KO:K06752 ]
103665516 HLA class II histocompatibility antigen, DO beta chain isoform X1 [KO:K06752 ]
103665517 DLA class II histocompatibility antigen, DR-1 beta chain-like [KO:K06752 ]
103665518 boLa class II histocompatibility antigen, DQB*0101 beta chain-like [KO:K06752 ]
103665519 SLA class II histocompatibility antigen, DQ haplotype D alpha chain [KO:K06752 ]
103665521 DLA class II histocompatibility antigen, DR-1 beta chain [KO:K06752 ]
103665522 HLA class II histocompatibility antigen, DR alpha chain [KO:K06752 ]
103665562 LOW QUALITY PROTEIN: HLA class II histocompatibility antigen, DP beta 1 chain [KO:K06752 ]
103665999 HGS; hepatocyte growth factor-regulated tyrosine kinase substrate isoform X1 [KO:K12182 ]
103676707 ATP6V1B2; V-type proton ATPase subunit B, brain isoform [KO:K02147 ]
103671376 ATP6V1B1; V-type proton ATPase subunit B, kidney isoform [KO:K02147 ]
103661526 ATP6V1C1; V-type proton ATPase subunit C 1 isoform X1 [KO:K02148 ]
103682324 ATP6V1G2; V-type proton ATPase subunit G 2 isoform X4 [KO:K02152 ]
103672574 ATP6V0A1; V-type proton ATPase 116 kDa subunit a1 isoform X1 [KO:K02154 ]
103668497 ATP6V0C; V-type proton ATPase 16 kDa proteolipid subunit [KO:K02155 ]
103670801 ATP6V0B; V-type proton ATPase 21 kDa proteolipid subunit isoform X1 [KO:K03661 ]
103656777 DYNC1H1; cytoplasmic dynein 1 heavy chain 1 isoform X1 [KO:K10413 ]
103659562 DYNC1I2; cytoplasmic dynein 1 intermediate chain 2 isoform X1 [KO:K10415 ]
103658747 DYNC1I1; cytoplasmic dynein 1 intermediate chain 1 isoform X3 [KO:K10415 ]
103682045 DYNC1LI1; cytoplasmic dynein 1 light intermediate chain 1 [KO:K10416 ]
103673737 DYNC1LI2; cytoplasmic dynein 1 light intermediate chain 2 isoform X1 [KO:K10416 ]
103680234 LAMP2; lysosome-associated membrane glycoprotein 2 isoform X1 [KO:K06528 ]
103676291 SEC61A2; protein transport protein Sec61 subunit alpha isoform X1 [KO:K10956 ]
103669615 SEC61A1; protein transport protein Sec61 subunit alpha [KO:K10956 ]
103674548 SEC61G; protein transport protein Sec61 subunit gamma [KO:K07342 ]
103667577 FCGR1A; high affinity immunoglobulin gamma Fc receptor I [KO:K06498 ]
103658249 FCGR2B; low affinity immunoglobulin gamma Fc region receptor II-b [KO:K12560 ]
103658250 low affinity immunoglobulin gamma Fc region receptor III-B isoform X1 [KO:K06463 ]
103663749 CD14; monocyte differentiation antigen CD14 isoform X1 [KO:K04391 ]
103659863 PLA2R1; secretory phospholipase A2 receptor isoform X1 [KO:K06560 ]
103669135 CLEC7A; C-type lectin domain family 7 member A isoform X1 [KO:K10074 ]
103681333 MSR1; macrophage scavenger receptor types I and II isoform X1 [KO:K06558 ]
103669134 OLR1; oxidized low-density lipoprotein receptor 1 isoform X1 [KO:K08763 ]
103661123 SCARB1; scavenger receptor class B member 1 isoform X1 [KO:K13885 ]
Compound
C04549 1-Phosphatidyl-1D-myo-inositol 3-phosphate
Reference
Authors
Stuart LM, Ezekowitz RA
Title
Phagocytosis: elegant complexity.
Journal
Reference
Authors
Tjelle TE, Lovdal T, Berg T
Title
Phagosome dynamics and function.
Journal
Reference
Authors
Dupuy AG, Caron E
Title
Integrin-dependent phagocytosis: spreading from microadhesion to new concepts.
Journal
Reference
Authors
Brumell JH, Grinstein S
Title
Salmonella redirects phagosomal maturation.
Journal
Reference
Authors
Huynh KK, Eskelinen EL, Scott CC, Malevanets A, Saftig P, Grinstein S
Title
LAMP proteins are required for fusion of lysosomes with phagosomes.
Journal
Reference
Authors
Luzio JP, Pryor PR, Bright NA
Title
Lysosomes: fusion and function.
Journal
Reference
Authors
Sumimoto H
Title
Structure, regulation and evolution of Nox-family NADPH oxidases that produce reactive oxygen species.
Journal
Related pathway
umr04610 Complement and coagulation cascades
umr04612 Antigen processing and presentation
umr04620 Toll-like receptor signaling pathway
umr04666 Fc gamma R-mediated phagocytosis
KO pathway
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