ERO1L blocking peptide

ERO1L Antibody (C-term) Blocking peptide

• Gene Names: ERO1A; ERO1L; ERO1-L; ERO1LA; Ero1alpha; ERO1-alpha; ERO1-L-alpha
• Synonyms: ERO1L; ERO1L Antibody (C-term) Blocking peptide; ERO1-like protein alpha; ERO1-L; ERO1-L-alpha; 184-; Endoplasmic oxidoreductin-1-like protein; Oxidoreductin-1-L-alpha; ERO1L blocking peptide

• Specificity: The synthetic peptide sequence used to generate the antibody was selected from the C-term region of ERO1L. A 10 to 100 fold molar excess to antibody is recommended. Precise conditions should be optimized for a particular assay.
• Form/Format: Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.
• Sequence Length: 468

• Cellular Location: Endoplasmic reticulum membrane; Peripheral membrane protein; Lumenal side Note: The association with ERP44 is essential for its retention in the endoplasmic reticulum
• Tissue Location: Widely expressed at low level. Expressed at high level in upper digestive tract. Highly expressed in esophagus. Weakly expressed in stomach and duodenum
• Preparation and Storage: Maintain refrigerated at 2-8 degree C for up to 6 months. For long term storage store at -20 degree C.

Related Product Information for ERO1L blocking peptide

Oxidoreductase involved in disulfide bond formation in the endoplasmic reticulum. Efficiently reoxidizes P4HB/PDI, the enzyme catalyzing protein disulfide formation, in order to allow P4HB to sustain additional rounds of disulfide formation. Following P4HB reoxidation, passes its electrons to molecular oxygen via FAD, leading to the production of reactive oxygen species (ROS) in the cell. Required for the proper folding of immunoglobulins. Involved in the release of the unfolded cholera toxin from reduced P4HB/PDI in case of infection by V.cholerae, thereby playing a role in retrotranslocation of the toxin. Plays an important role in ER stress-induced, CHOP-dependent apoptosis by activating the inositol 1,4,5-trisphosphate receptor IP3R1.

NCBI and Uniprot Product Information

• NCBI GI #: 50400608
• NCBI GeneID: 30001
• UniProt Accession #: Q96HE7; Q7LD45; Q9P1Q9; Q9UKV6; A8K9X4; A8MYW1
• Molecular Weight: 54,393 Da
• NCBI Official Full Name: ERO1-like protein alpha
• NCBI Official Synonym Full Names: endoplasmic reticulum oxidoreductase 1 alpha
• NCBI Official Symbol: ERO1A
• NCBI Official Synonym Symbols: ERO1L; ERO1-L; ERO1LA; Ero1alpha; ERO1-alpha; ERO1-L-alpha
• NCBI Protein Information: ERO1-like protein alpha
• UniProt Protein Name: ERO1-like protein alpha
• Protein Family: Ero1-like protein
• UniProt Gene Name: ERO1A
• UniProt Synonym Gene Names: ERO1-L; ERO1-L-alpha
• UniProt Entry Name: ERO1A_HUMAN

Uniprot Description

ERO1L: Essential oxidoreductase that oxidizes proteins in the endoplasmic reticulum to produce disulfide bonds. Acts by oxidizing directly P4HB/PDI isomerase through a direct disulfide exchange. Does not act as a direct oxidant of folding substrate, but relies on P4HB/PDI to transfer oxidizing equivalent. Associates with ERP44 but not with GRP54, demonstrating that it does not oxidize all PDI related proteins and can discriminate between PDI and related proteins. Its reoxidation probably involves electron transfer to molecular oxygen via FAD. Acts independently of glutathione. May be responsible for a significant proportion of reactive oxygen species (ROS) in the cell, thereby being a source of oxidative stress. Required for the folding of immunoglobulin proteins. Responsible for the release of the unfolded cholera toxin from reduced P4HB/PDI in case of infection by V.cholerae, thereby playing a role in retrotranslocation of the toxin. Predominantly monomer. May function both as a monomer and a homodimer. Interacts with PDILT. Stimulated by hypoxia; suggesting that it is regulated via the HIF-pathway. Widely expressed at low level. Expressed at high level in upper digestive tract. Highly expressed in esophagus. Weakly expressed in stomach and duodenum. Enzyme activity is tightly regulated to prevent the accumulation of reactive oxygen species in the endoplasmic reticulum. Reversibly down-regulated by the formation of disulfide bonds between the active site Cys-94 and Cys-131, and between Cys- 99 and Cys-104. Glutathione may be required to regulate its activity in the endoplasmic reticulum. Belongs to the EROs family.

Protein type: EC 1.8.4.-; Secreted, signal peptide; Secreted; Oxidoreductase

Chromosomal Location of Human Ortholog: 14q22.1

Cellular Component: endoplasmic reticulum; endoplasmic reticulum lumen; intracellular membrane-bound organelle; membrane

Molecular Function: disulfide oxidoreductase activity; oxidoreductase activity; protein binding

Biological Process: chaperone cofactor-dependent protein folding; protein folding; protein modification process; release of sequestered calcium ion into cytosol; response to reactive oxygen species; response to temperature stimulus