Anti-PREB Picoband Antibody
- SPECIFICATION
- CITATIONS
- PROTOCOLS
- BACKGROUND
Application ![]()
| WB |
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Primary Accession | Q9HCU5 |
Host | Rabbit |
Reactivity | Human |
Clonality | Polyclonal |
Format | Lyophilized |
Description | Rabbit IgG polyclonal antibody for Prolactin regulatory element-binding protein(PREB) detection. Tested with WB in Human. |
Reconstitution | Add 0.2ml of distilled water will yield a concentration of 500ug/ml. |
Gene ID | 10113 |
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Other Names | Prolactin regulatory element-binding protein, Mammalian guanine nucleotide exchange factor mSec12, PREB, SEC12 |
Calculated MW | 45468 MW KDa |
Application Details | Western blot, 0.1-0.5 µg/ml, Human |
Subcellular Localization | Endoplasmic reticulum membrane ; Single-pass membrane protein . Nucleus . Concentrates at endoplasmic reticulum exit sites. . |
Tissue Specificity | Ubiquitous. . |
Contents | Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg NaN3. |
Immunogen | E. coli-derived human PREB recombinant protein (Position: K42-N236). Human PREB shares 87.7% amino acid (aa) sequence identity with both mouse and rat PREB. |
Purification | Immunogen affinity purified. |
Cross Reactivity | No cross reactivity with other proteins. |
Storage | At -20˚C for one year. After r˚Constitution, at 4˚C for one month. It˚Can also be aliquotted and stored frozen at -20˚C for a longer time. Avoid repeated freezing and thawing. |
Name | PREB {ECO:0000303|PubMed:10920239, ECO:0000312|HGNC:HGNC:9356} |
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Function | Guanine nucleotide exchange factor (GEF) that regulates the assembly of the coat protein complex II/COPII in endoplasmic reticulum (ER) to Golgi vesicle-mediated transport. Selectively activates SAR1A and SAR1B by promoting the exchange of guanosine diphosphate (GDP) for guanosine triphosphate (GTP) in these small GTPases (PubMed:32358066). In their activated GTP-bound state, SAR1A and SAR1B insert into the membrane of the endoplasmic reticulum where they recruit the remainder of the coat protein complex II/COPII which is responsible for both the sorting of proteins and the deformation and budding of membranes into vesicles destined to the Golgi (PubMed:32358066). |
Cellular Location | Endoplasmic reticulum membrane {ECO:0000250|UniProtKB:Q9WTV0}; Single-pass membrane protein {ECO:0000250|UniProtKB:Q9WTV0}. Nucleus {ECO:0000250|UniProtKB:Q9WTV0} Note=Concentrates at endoplasmic reticulum exit sites (ERES), also known as transitional endoplasmic reticulum (tER) |
Tissue Location | Ubiquitous. |

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Provided below are standard protocols that you may find useful for product applications.
Background
Prolactin regulatory element-binding protein is a protein that in humans is encoded by the PREB gene. This gene encodes a protein that specifically binds to a Pit1-binding element of the prolactin (PRL) promoter. This protein may act as a transcriptional regulator and is thought to be involved in some of the developmental abnormalities observed in patients with partial trisomy 2p. This gene overlaps the abhydrolase domain containing 1 (ABHD1) gene on the opposite strand.

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