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Golgi Transport Complex
The Conserved oligomeric Golgi complex (COG) is a multiprotein complex found in the Golgi apparatus structure and involved in intracellular transport and glycoprotein modification. Earlier names for this complex were : the Golgi transport complex (GTC), the LDLC complex, which is involved in glycosylation reactions, and the SEC34 complex, which is involved in vesicular transport. These 3 complexes are identical and have been termed the conserved oligomeric Golgi (COG) complex (Ungar et al., 2002). upplied by OMIMref name="entrez"> ;Structure: The COG protein complex consists of eight subunits, in two lobes; Lobe A consists of COG1, COG2, COG3, COG4 and lobe B consists of COG5, COG6, COG7 Conserved oligomeric Golgi complex subunit 7 is a protein that in humans is encoded by the ''COG7'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modi ..., COG8. Function The conserved oligomeric Go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protein Complex
A protein complex or multiprotein complex is a group of two or more associated polypeptide chains. Protein complexes are distinct from multienzyme complexes, in which multiple catalytic domains are found in a single polypeptide chain. Protein complexes are a form of quaternary structure. Proteins in a protein complex are linked by non-covalent protein–protein interactions. These complexes are a cornerstone of many (if not most) biological processes. The cell is seen to be composed of modular supramolecular complexes, each of which performs an independent, discrete biological function. Through proximity, the speed and selectivity of binding interactions between enzymatic complex and substrates can be vastly improved, leading to higher cellular efficiency. Many of the techniques used to enter cells and isolate proteins are inherently disruptive to such large complexes, complicating the task of determining the components of a complex. Examples of protein complexes include the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golgi Apparatus
The Golgi apparatus (), also known as the Golgi complex, Golgi body, or simply the Golgi, is an organelle found in most eukaryotic cells. Part of the endomembrane system in the cytoplasm, it packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination. It resides at the intersection of the secretory, lysosomal, and endocytic pathways. It is of particular importance in processing proteins for secretion, containing a set of glycosylation enzymes that attach various sugar monomers to proteins as the proteins move through the apparatus. It was identified in 1897 by the Italian scientist Camillo Golgi and was named after him in 1898. Discovery Owing to its large size and distinctive structure, the Golgi apparatus was one of the first organelles to be discovered and observed in detail. It was discovered in 1898 by Italian physician Camillo Golgi during an investigation of the nervous system. After first observing it under his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intracellular Transport
Intracellular transport is the movement of vesicles and substances within a cell. Intracellular transport is required for maintaining homeostasis within the cell by responding to physiological signals. Proteins synthesized in the cytosol are distributed to their respective organelles, according to their specific amino acid’s sorting sequence. Eukaryotic cells transport packets of components to particular intracellular locations by attaching them to molecular motors that haul them along microtubules and actin filaments. Since intracellular transport heavily relies on microtubules for movement, the components of the cytoskeleton play a vital role in trafficking vesicles between organelles and the plasma membrane by providing mechanical support. Through this pathway, it is possible to facilitate the movement of essential molecules such as membrane‐bounded vesicles and organelles, mRNA, and chromosomes. Intracellular transport is unique to eukaryotic cells because they possess or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COG1
Conserved oligomeric Golgi complex subunit 1 is a protein that in humans is encoded by the ''COG1'' gene. The protein encoded by this gene is one of eight proteins (Cog1-8) which form a Golgi-localized complex (COG) required for normal Golgi morphology and function. It is thought that this protein is required for steps in the normal medial and trans-Golgi-associated processing of glycoconjugates and plays a role in the organization of the Golgi-localized complex. Interactions COG1 has been shown to interact with COG4 and COG3 Conserved oligomeric Golgi complex subunit 3 is a protein that in humans is encoded by the ''COG3'' gene. The protein encoded by this gene has similarity to a yeast protein. It seems to be part of a peripheral membrane protein complex localized o .... References Further reading * * * * * * * * * External links GeneReviews/NCBI/NIH/UW entry on Congenital Disorders of Glycosylation Overview * {{gene-17-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COG2
Conserved oligomeric Golgi complex subunit 2 is a protein that in humans is encoded by the ''COG2'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modification. Several complexes have been identified, including the Golgi transport complex (GTC), the LDLC complex, which is involved in glycosylation reactions, and the SEC34 complex, which is involved in vesicular transport. These 3 complexes are identical and have been termed the conserved oligomeric Golgi (COG) complex, which includes COG2 (Ungar et al., 2002). Model organisms Model organisms have been used in the study of COG2 function. A conditional knockout mouse line, called ''Cog2tm1a(KOMP)Wtsi'' was generated as part of the International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists. Male and female animals underwent a standard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COG3
Conserved oligomeric Golgi complex subunit 3 is a protein that in humans is encoded by the ''COG3'' gene. The protein encoded by this gene has similarity to a yeast protein. It seems to be part of a peripheral membrane protein complex localized on cis/medial Golgi cisternae where it may participate in tethering intra-Golgi transport vesicles. Interactions COG3 has been shown to interact with COG2 and COG1 Conserved oligomeric Golgi complex subunit 1 is a protein that in humans is encoded by the ''COG1'' gene. The protein encoded by this gene is one of eight proteins (Cog1-8) which form a Golgi-localized complex (COG) required for normal Golgi morp .... References External links * Further reading * * * * * * * * * * {{gene-13-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COG4
Conserved oligomeric Golgi complex subunit 4 is a protein that in humans is encoded by the ''COG4'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modification. Several complexes have been identified, including the Golgi transport complex (GTC), the LDLC complex, which is involved in glycosylation reactions, and the SEC34 complex, which is involved in vesicular transport. These 3 complexes are identical and have been termed the conserved oligomeric Golgi (COG) complex, which includes COG4 (Ungar et al., 2002). upplied by OMIMref name="entrez"/> Interactions COG4 has been shown to interact with COG7, COG2, COG1 and COG5 Conserved oligomeric Golgi complex subunit 5 is a protein that in humans is encoded by the ''COG5'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modif .... Clinical Mutatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COG5
Conserved oligomeric Golgi complex subunit 5 is a protein that in humans is encoded by the ''COG5'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modification. Several complexes have been identified, including the Golgi transport complex (GTC), the LDLC complex, which is involved in glycosylation reactions, and the SEC34 complex, which is involved in vesicular transport. These 3 complexes are identical and have been termed the conserved oligomeric Golgi (COG) complex, which includes COG5 (Ungar et al., 2002). upplied by OMIMref name="entrez"/> Interactions COG5 has been shown to interact with COG7 and COG4 Conserved oligomeric Golgi complex subunit 4 is a protein that in humans is encoded by the ''COG4'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modif .... References Further readi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COG7
Conserved oligomeric Golgi complex subunit 7 is a protein that in humans is encoded by the ''COG7'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modification. Several complexes have been identified, including the Golgi transport complex (GTC), the LDLC complex, which is involved in glycosylation reactions, and the SEC34 complex, which is involved in vesicular transport. These 3 complexes are identical and have been termed the conserved oligomeric Golgi (COG) complex, which includes COG7 (Ungar et al., 2002). upplied by OMIMref name="entrez"/> Interactions COG7 has been shown to interact with COG4 and COG5 Conserved oligomeric Golgi complex subunit 5 is a protein that in humans is encoded by the ''COG5'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein mod .... References Further re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
COG8
Conserved oligomeric Golgi complex subunit 8 is a protein that in humans is encoded by the ''COG8'' gene. Multiprotein complexes are key determinants of Golgi apparatus structure and its capacity for intracellular transport and glycoprotein modification. Several complexes have been identified, including the Golgi transport complex (GTC), the LDLC complex, which is involved in glycosylation reactions, and the SEC34 complex, which is involved in vesicular transport. These 3 complexes are identical and have been termed the conserved oligomeric Golgi complex The Conserved oligomeric Golgi complex (COG) is a multiprotein complex found in the Golgi apparatus structure and involved in intracellular transport and glycoprotein modification. Earlier names for this complex were : the Golgi transport complex ( ... (COG), which includes COG8 (Ungar et al., 2002). upplied by OMIMref name="entrez" /> References Further reading * * * * * * * * * * External links GeneReviews/NCBI/NIH/UW e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
