Recombinant Human Cytochrome c oxidase subunit 4 isoform 1, mitochondrial (COX4I1)

Code CSB-YP005832HU
MSDS
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Source Yeast
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Code CSB-EP005832HU-B
MSDS
Size Pls inquire
Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP005832HU
MSDS
Size Pls inquire
Source Baculovirus
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Code CSB-MP005832HU
MSDS
Size Pls inquire
Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
COX4I1
Uniprot No.
Alternative Names
AL024441; COX 4; COX IV 1; COX IV; COX IV-1; Cox4; COX41_HUMAN; Cox4a; COX4B; COX4I1; COX4I2; COX4L2; COXIV; Cytochrome c oxidase polypeptide IV; Cytochrome c oxidase subunit 4 isoform 1 mitochondrial; Cytochrome c oxidase subunit 4 isoform 1, mitochondrial; Cytochrome C Oxidase subunit IV; Cytochrome c oxidase subunit IV isoform 1; Cytochrome c oxidase subunit IV isoform 2 (lung); Cytochrome c oxydase subunit 4; dJ857M17.2; MGC105470; MGC72016
Species
Homo sapiens (Human)
Expression Region
23-169
Target Protein Sequence
AHESVVKS EDFSLPAYMD RRDHPLPEVA HVKHLSASQK ALKEKEKASW SSLSMDEKVE LYRIKFKESF AEMNRGSNEW KTVVGGAMFF IGFTALVIMW QKHYVYGPLP QSFDKEWVAK QTKRMLDMKV NPIQGLASKW DYEKNEWKK
Protein Length
Full Length of Mature Protein
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

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Target Background

Function
Component of the cytochrome c oxidase, the last enzyme in the mitochondrial electron transport chain which drives oxidative phosphorylation. The respiratory chain contains 3 multisubunit complexes succinate dehydrogenase (complex II, CII), ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III, CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to transfer electrons derived from NADH and succinate to molecular oxygen, creating an electrochemical gradient over the inner membrane that drives transmembrane transport and the ATP synthase. Cytochrome c oxidase is the component of the respiratory chain that catalyzes the reduction of oxygen to water. Electrons originating from reduced cytochrome c in the intermembrane space (IMS) are transferred via the dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunbit 1 to the active site in subunit 1, a binuclear center (BNC) formed by heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2 water molecules using 4 electrons from cytochrome c in the IMS and 4 protons from the mitochondrial matrix.
Gene References into Functions
  1. In case of myocardial insufficiency and dilated cardiomyopathy, decreased expression of COX 4 results in an impaired CytOx activity. Higher enzymatic activity but equal oxygen consumption contribute to the pathophysiology of the myocardial insufficiency and appears as an indicator of oxidative stress. This kind of dysregulation should be in the focus for the development of diagnostic and therapy procedures PMID: 30223867
  2. COX4I1 variant K101N was identified in a patient with short stature, poor weight gain and increased chromosomal breaks, simulating Fanconi anemia. PMID: 28766551
  3. This cohort study showed that the COX411 gene was down regulation between patients with idiopathic Parkinson disease and controls PMID: 28916538
  4. We provide evidence that COX4-1 controls BMI1 expression via a redox mechanism PMID: 25726526
  5. COXIV mRNA (1.6 fold; P<0.01) and COXIV protein expression (1.5 fold; P<0.05) were increased by training but COXIV protein expression was decreased (20%; P<0.01) by acute exercise pre- and post-training. PMID: 23285255
  6. COX activity (electron transport complex IV) is reduced by 29% in maternal history of Alzheimer's disease compared to normal controls, and by 30% compared to paternal history of Alzheimer's disease. PMID: 21841246
  7. Studies suggest a model that links cell signaling with the phosphorylation state of Cytochrome c (Cytc) and cytochrome c oxidase (COX). PMID: 21771582
  8. Studies suggest that the main function of nuclear encoded subunits of cytochrome c oxidase appears to be "only" to control the activity of the mitochondrial subunits. PMID: 21802404
  9. Studies indicate that the mechanism for proton pumping in cytochrome c oxidase is based on an electrostatic analysis of a kinetic experiment for the O to E transition. PMID: 21978537
  10. Studies indicate that nitric oxide (NO) inhibition of cytochrome c oxidase (CcOX) is rapid and reversible and may occur in competition with oxygen. PMID: 21939634
  11. Studies indicate that the cytochrome oxidase enzyme-substrate (ES) Michaelis complex of cell respiration, the dioxygen adduct of heme a(3), which he termed Compound A. PMID: 22079200
  12. Novel insights into the assembly and function of human nuclear-encoded cytochrome c oxidase subunits 4 PMID: 20307258
  13. Data found that subunits Cox6a, Cox6b and Cox7a assembled into pre-existing complex IV, while Cox4-1 and Cox6c subunits assembled into subcomplexes that may represent rate-limiting intermediates. PMID: 19843159
  14. study points to a role for surfeit 1(SURF1) in promoting the association of cytochrome c oxidase II with the cytochrome c oxidase I.cytochrome c oxidase subunit 4.cytochrome c oxidase subunit 5A subassembly PMID: 14607829
  15. Under conditions of reduced oxygen availability, hypoxia-inducible factor 1 reciprocally regulates COX4 subunit expression by activating transcription of the genes encoding COX4-2 and LON, a mitochondrial protease that is required for COX4-1 degradation. PMID: 17418790

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Subcellular Location
Mitochondrion inner membrane; Single-pass membrane protein.
Protein Families
Cytochrome c oxidase IV family
Tissue Specificity
Ubiquitous.
Database Links

HGNC: 2265

OMIM: 123864

KEGG: hsa:1327

STRING: 9606.ENSP00000253452

UniGene: Hs.433419

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