DTNBP1 blocking peptide

DTNBP1 Antibody (N-term) Blocking Peptide

• Gene Names: DTNBP1; SDY; DBND; HPS7; My031; BLOC1S8
• Synonyms: DTNBP1; DTNBP1 Antibody (N-term) Blocking Peptide; Dysbindin; Biogenesis of lysosome-related organelles complex 1 subunit 8; BLOC-1 subunit 8; Dysbindin-1; Dystrobrevin-binding protein 1; Hermansky-Pudlak syndrome 7 protein; HPS7 protein; BLOC1S8; DTNBP1 blocking peptide

• 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: 351

• Cellular Location: Isoform 1: Cytoplasm. Cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Endosome membrane; Peripheral membrane protein; Cytoplasmic side. Melanosome membrane; Peripheral membrane protein; Cytoplasmic side. Cell junction, synapse, postsynaptic cell membrane, postsynaptic density. Endoplasmic reticulum. Nucleus. Note: Mainly cytoplasmic but shuttles between the cytoplasm and nucleus Exported out of the nucleus via its NES in a XPO1-dependent manner. Nuclear localization is required for regulation of the expression of genes such as SYN1. Detected in neuron cell bodies, axons and dendrites. Mainly located to the postsynaptic density Detected at tubulovesicular elements in the vicinity of the Golgi apparatus and of melanosomes. Occasionally detected at the membrane of pigmented melanosomes in cultured melanoma cells. The BLOC-1 complex associates with the BLOC-2 complex in early endosome-associated tubules Isoform 3: Cytoplasm. Cytoplasmic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Cytoplasmic vesicle, secretory vesicle, synaptic vesicle membrane; Peripheral membrane protein; Cytoplasmic side. Endosome membrane; Peripheral membrane protein; Cytoplasmic side. Melanosome membrane; Peripheral membrane protein; Cytoplasmic side. Cell junction, synapse, postsynaptic cell membrane. Endoplasmic reticulum. Note: Exclusivley cytoplasmic. Predominantly found in the postsynaptic density (PSD). Little association with synaptic vesicles. The BLOC-1 complex associates with the BLOC-2 complex in early endosome-associated tubules. Associated with the AP-3 complex at presynaptic terminals
• Tissue Location: Detected in brain, in neurons and in neuropil. Isoform 1 is expressed in the cerebral cortex, and hippocampal frontal (HF). Specific expression in the posterior half of the superior temporal gyrus (pSTG). Higher expression of isoform 2 and 3 in the HF than in the pSTG while isoform 1 shows no difference in expression in these areas. In the HF, detected in dentate gyrus (DG) and in pyramidal cells of hippocampus CA2 and CA3 (at protein level). Expressed in all principal neuronal populations of the HF, namely pyramidal neurons in the subiculum and CA1-3, granule cells in the dense cell layer of the DG (DGg), and polymorph cells in the hilus of the DG (DGh). Maximal levels in CA2, CA3, and DGh Isoform 2 not expressed in the cerebral cortex
• 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 DTNBP1 blocking peptide

Component of the BLOC-1 complex, a complex that is required for normal biogenesis of lysosome-related organelles (LRO), such as platelet dense granules and melanosomes. In concert with the AP-3 complex, the BLOC-1 complex is required to target membrane protein cargos into vesicles assembled at cell bodies for delivery into neurites and nerve terminals. The BLOC-1 complex, in association with SNARE proteins, is also proposed to be involved in neurite extension. Associates with the BLOC-2 complex to facilitate the transport of TYRP1 independent of AP-3 function. Plays a role in synaptic vesicle trafficking and in neurotransmitter release. Plays a role in the regulation of cell surface exposure of DRD2. May play a role in actin cytoskeleton reorganization and neurite outgrowth. May modulate MAPK8 phosphorylation. Appears to promote neuronal transmission and viability through regulating the expression of SNAP25 and SYN1, modulating PI3-kinase-Akt signaling and influencing glutamatergic release. Regulates the expression of SYN1 through binding to its promoter. Modulates prefrontal cortical activity via the dopamine/D2 pathway.

NCBI and Uniprot Product Information

• NCBI GI #: 38604971
• NCBI GeneID: 84062
• UniProt Accession #: Q96EV8; Q5THY3; Q5THY4; Q96NV2; Q9H0U2; Q9H3J5; A8K3V3
• Molecular Weight: 30,387 Da
• NCBI Official Full Name: Dysbindin
• NCBI Official Synonym Full Names: dystrobrevin binding protein 1
• NCBI Official Symbol: DTNBP1
• NCBI Official Synonym Symbols: SDY; DBND; HPS7; My031; BLOC1S8
• NCBI Protein Information: dysbindin
• UniProt Protein Name: Dysbindin
• Protein Family: Dysbindin
• UniProt Gene Name: DTNBP1
• UniProt Synonym Gene Names: BLOC1S8; BLOC-1 subunit 8; HPS7 protein
• UniProt Entry Name: DTBP1_HUMAN

NCBI Description

This gene encodes a protein that may play a role in organelle biogenesis associated with melanosomes, platelet dense granules, and lysosomes. A similar protein in mouse is a component of a protein complex termed biogenesis of lysosome-related organelles complex 1 (BLOC-1), and binds to alpha- and beta-dystrobrevins, which are components of the dystrophin-associated protein complex (DPC). Mutations in this gene are associated with Hermansky-Pudlak syndrome type 7. This gene may also be associated with schizophrenia. Multiple transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

Uniprot Description

DTNBP1: The BLOC-1 complex is required for normal biogenesis of lysosome-related organelles, such as platelet dense granules and melanosomes. Plays a role in intracellular vesicle trafficking. Plays a role in synaptic vesicle trafficking and in neurotransmitter release. May be required for normal dopamine homeostasis in the cerebral cortex, hippocampus, and hypothalamus. Plays a role in the regulation of cell surface exposure of DRD2. Contributes to the regulation of dopamine signaling. May play a role in actin cytoskeleton reorganization and neurite outgrowth. May modulate MAPK8 phosphorylation. Part of the biogenesis of lysosome-related organelles complex 1 (BLOC-1). The BLOC-1 complex is composed of BLOC1S1, BLOC1S2, BLOC1S3, DTNBP1, MUTED, PLDN, CNO/cappuccino and SNAPIN. Binds to DTNA and DTNB but may not be a physiological binding partner (PubMed:16980328). Interacts with RNF151 and CMYA5. Identified in a complex with the adapter-related protein complex 3 (AP-3). Interacts with TRIM32, AP3M1 and AP3B2. Identified in a complex with the biogenesis of lysosome-related organelles complex 2 (BLOC-2). Interacts with the DNA-dependent protein kinase complex DNA-PK. Detected in brain, in neurons and in neuropil. Detected in dentate gyrus and in pyramidal cells of hippocampus CA2 and CA3. Belongs to the dysbindin family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Vesicle

Chromosomal Location of Human Ortholog: 6p22.3

Cellular Component: axon; cytoplasm; cytosol; dendritic spine; endoplasmic reticulum membrane; growth cone; neuron projection; nucleus; postsynaptic density; sarcolemma; synaptic vesicle membrane

Molecular Function: protein binding

Biological Process: actin cytoskeleton reorganization; anterograde axon cargo transport; anterograde synaptic vesicle transport; neurite development; neurite morphogenesis; positive regulation of neurotransmitter secretion; regulation of dopamine receptor signaling pathway; regulation of dopamine secretion

Disease: Hermansky-pudlak Syndrome 7; Schizophrenia