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Product Name Aph-1b Chinese Name 早老素稳定因子样蛋白/γ分泌酶组件蛋白APH1抗体 Alias Anterior pharynx defective 1; Anterior pharynx defective 1 homolog B (C. elegans); Anterior pharynx defective 1 homolog B; Anterior pharynx defective 1B like; Anterior pharynx defective 1b short splicing variant; APH 1B; Aph 1beta; APH-1b; Aph-1beta; Aph1 beta; aph1b; APH1B_HUMAN; Aph1beta; Gamma secretase subunit APH 1B; Gamma secretase subunit APH1B; Gamma secretase sununit; Gamma-secretase subunit Aph-1b; Presenilin stabilisation factor like; Presenilin-stabilization factor-like; PRO 1328; PRO1328; PSFL; TAAV 688; TAAV688. Research Area Cell biology Neurobiology Alzheimer's Immunogen Species Rabbit Clonality Polyclonal React Species (predicted: Human, Mouse, Rat, Dog, Pig, Cow, Sheep, ) Applications ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500 (Paraffin sections need antigen repair)
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.Theoretical molecular weight 28kDa Cellular localization The cell membrane Form Liquid Concentration 1mg/ml immunogen KLH conjugated synthetic peptide derived from human Aph-1b: 51-150/257 Lsotype IgG Purification affinity purified by Protein A Buffer Solution 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. Storage Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. Attention This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. PubMed PubMed Product Detail Anterior pharynx defective 1 (Aph-1) is a polytopic, seven-pass membrane protein that functions as one of the four essential components in the presenilin-Gamma-secretase enzyme complex. This enzyme complex is necessary for the intra-membrane proteolysis of several different membrane proteins, including the beta-Amyloid precursor protein, and is involved in multiple neurodevelopmental signaling pathways. Aph-1b and Aph-1a are splice variants of Aph-1. Aph-1b specifically lacks exon 4, which encodes for the entire fourth transmembrane domain, causing the protein to be destabilized. Deficiency of Aph-1a causes a reduction in Gamma-secretase activity, however deficiency of Aph-1b does not; thus, Aph-1b may execute redundant functions in the cell. Aph-1b expression and Gamma-secretase activity may be implicated in neurodevelopmental disorders, such as schizophrenia.
Function:
Probable subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral proteins such as Notch receptors and APP (beta-amyloid precursor protein). It probably represents a stabilizing cofactor for the presenilin homodimer that promotes the formation of a stable complex. Probably present in a minority of gamma-secretase complexes compared to APH1A.
Subunit:
Probable component of the gamma-secretase complex, a complex composed of a presenilin homodimer (PSEN1 or PSEN2), nicastrin (NCSTN), APH1 (APH1A or APH1B) and PEN2. Such minimal complex is sufficient for secretase activity, although other components may exist (By similarity). Interacts with PSEN1 and PSEN2.
Subcellular Location:
Membrane; Multi-pass membrane protein
Tissue Specificity:
Weakly or not expressed in leukocytes, lung, placenta, small intestine, liver, kidney, spleen thymus, colon, skeletal muscle, heart and brain.
Similarity:
Belongs to the APH-1 family.
SWISS:
Q8WW43
Gene ID:
83464
Database links:Entrez Gene: 83464 Human
Omim: 607630 Human
SwissProt: Q8WW43 Human
Unigene: 511703 Human
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