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CHM Antibody (Center)
Affinity Purified Rabbit Polyclonal Antibody (Pab)
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application 
| WB, E |
|---|---|
| Primary Accession | P24386 |
| Other Accession | NP_000381.1 |
| Reactivity | Human |
| Host | Rabbit |
| Clonality | Polyclonal |
| Isotype | Rabbit IgG |
| Calculated MW | 73476 Da |
| Antigen Region | 292-320 aa |
| Gene ID | 1121 |
|---|---|
| Other Names | Rab proteins geranylgeranyltransferase component A 1, Choroideremia protein, Rab escort protein 1, REP-1, TCD protein, CHM, REP1, TCD |
| Target/Specificity | This CHM antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 292-320 amino acids from the Central region of human CHM. |
| Dilution | WB~~1:1000 E~~Use at an assay dependent concentration. |
| Format | Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification. |
| Storage | Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles. |
| Precautions | CHM Antibody (Center) is for research use only and not for use in diagnostic or therapeutic procedures. |
| Name | CHM |
|---|---|
| Synonyms | REP1, TCD |
| Function | Substrate-binding subunit of the Rab geranylgeranyltransferase (GGTase) complex. Binds unprenylated Rab proteins and presents the substrate peptide to the catalytic component B composed of RABGGTA and RABGGTB, and remains bound to it after the geranylgeranyl transfer reaction. The component A is thought to be regenerated by transferring its prenylated Rab back to the donor membrane. Besides, a pre-formed complex consisting of CHM and the Rab GGTase dimer (RGGT or component B) can bind to and prenylate Rab proteins; this alternative pathway is proposed to be the predominant pathway for Rab protein geranylgeranylation. |
| Cellular Location | Cytoplasm, cytosol. |
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Provided below are standard protocols that you may find useful for product applications.
Background
This gene encodes component A of the RAB geranylgeranyl transferase holoenzyme. In the dimeric holoenzyme, this subunit binds unprenylated Rab GTPases and then presents them to the catalytic Rab GGTase subunit for the geranylgeranyl transfer reaction. Rab GTPases need to be geranylgeranyled on either one or two cysteine residues in their C-terminus to localize to the correct intracellular membrane. Mutations in this gene are a cause of choroideremia; also known as tapetochoroidal dystrophy (TCD). This X-linked disease is characterized by progressive dystrophy of the choroid, retinal pigment epithelium and retina. Alternative splicing results in multiple transcript variants encoding different isoforms.
References
Perez-Cano, H.J., et al. Am. J. Med. Genet. A 149A (10), 2134-2140 (2009) :
Renner, A.B., et al. Arch. Ophthalmol. 127(7):907-912(2009)
Sergeev, Y.V., et al. Mutat. Res. 665 (1-2), 44-50 (2009) :
MacDonald, I.M., et al. Surv Ophthalmol 54(3):401-407(2009)
Strunnikova, N.V., et al. PLoS ONE 4 (12), E8402 (2009) :
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