Recombinant Human Histamine H1 Receptor (HRH1) Protein (His)

Name: Recombinant Human Histamine H1 Receptor (HRH1) Protein (His)
Brand: Beta LifeScience
SKU: BLC-03510P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of this product could indicate that this peptide derived from E.coli-expressed Homo sapiens (Human) HRH1.

Collections: High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Histamine H1 Receptor (HRH1) Protein (His) is produced by our E.coli expression system. This is a protein fragment.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	P35367
Target Symbol	HRH1
Synonyms	BPHS, mouse, homolog of; H1 R; H1R; HH1R; HisH1; Histamine H(1) receptor; Histamine H1 receptor; Histamine receptor H1; Histamine receptor subclass H1; Hrh1; HRH1_HUMAN
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-6His
Target Protein Sequence	AKIYKAVRQHCQHRELINRSLPSFSEIKLRPENPKGDAKKPGKESPWEVLKRKPKDAGGGSVLKSPSQTPKEMKSPVVFSQEDDREVDKLYCFPLDIVHMQAAAEGSSRDYVAVNRSHGQLKTDEQGLNTHGASEISEDQMLGDSQSFSRTDSDTTTETAPGKGKLRSGSNTGLDYIKFTWKRLRSHSRQYVSGLHMNRERKAAKQ
Expression Range	211-416aa
Protein Length	Partial
Mol. Weight	27.1kDa
Research Area	Immunology
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	In peripheral tissues, the H1 subclass of histamine receptors mediates the contraction of smooth muscles, increase in capillary permeability due to contraction of terminal venules, and catecholamine release from adrenal medulla, as well as mediating neurotransmission in the central nervous system.
Subcellular Location	Cell membrane; Multi-pass membrane protein.
Protein Families	G-protein coupled receptor 1 family
Database References	HGNC: 5182 OMIM: 600167 KEGG: hsa:3269 STRING: 9606.ENSP00000380247 UniGene: PMID: 28391980 This study demonstrated that HRH1 gene polymorphisms associated with sedation in clozapine-treated patient with schizophrenia. PMID: 28400155 Human H1 receptors in Chinese hamster ovary cells are apparently down-regulated by a sustained increase in intracellular Ca(2+) concentrations with no process of endocytosis and lysosomal/proteasomal degradation of receptors. PMID: 29063596 Antihistamines displayed similar kinetic signatures on antagonizing histamine-induced beta-arrestin2 recruitment as compared to displacing radioligand binding from the H1R. PMID: 27468652 Study suggests that both MAPK p44/p42 and PKC pathways appear to be involved in histamine-upregulated matrix metalloproteinase-9 release via histamine H1 receptors in astrocytes. PMID: 25682263 that histamine H1 receptor activation mediates MAPK activation through PLCbeta, Src, PKCdelta and MEK pathway, but does not lead to nuclear relocalization of phospho-ERK (pERK), classically associated with pro-proliferative changes. PMID: 27871651 Activation of the H1R by its full agonists resulted in a composite potentiating effect. Intriguingly, inactivation of the Gaq-PLC pathway by H1R inverse agonists resulted also in a potentiation of GR activity. PMID: 26635083 HRH1-mediated sensitization of TRPV1 is involved in IBS. Ebastine, an antagonist of HRH1, reduced visceral hypersensitivity, symptoms, and abdominal pain in patients with IBS. PMID: 26752109 multiple signaling pathways contribute to histamine-induced endothelial barrier dysfunction via the H1 receptor. PMID: 25582918 Thus, the results in the initial study were due to the degradation of histamine in skeletal muscle by ascorbate, because the histaminergic vasodilatation was unaffected by N-acetylcysteine. PMID: 25664905 HRH1 transcript was significantly down-modulated in multiple sclerose compared with health control. PMID: 25293806 The relationship between the expression of HRH1 and prognosis was found to vary in different types of cancers, even in the same cancer from different databases. PMID: 24535227 But carriers of one or three copies of HRH1 (5% of individuals), HRH2 (1.1%) and HRH4 genes (0.9%) were also identified. PMID: 24236486 Overexpression of H1R further increases the oxidative output of Duox-expressing HEK-293 cells. PMID: 23962049 Histamine demonstrably inhibited ACh-induced sweating in both mice and humans via H1R-mediated signaling. PMID: 23900020 our study does not support the contribution of histamine H1HR gene variants to antipsychotic induced weight gain nor differences in distribution between healthy volunteers and patients with schizophrenia PMID: 23609395 In this review, we focus on the role of histamine and its receptors in the treatment of Alzheimer's disease. PMID: 23677734 Our observations point to a close histamine-/HR-mediated activation of dermal macrophages, leading to modified cell differentiation and responsiveness via H1R, which might contribute to the aggravation of allergic skin inflammation in AD. PMID: 23414213 Histamine was able to synergistically augment bFGF-induced angiogenesis, and this action was linked to VEGF production through H1-receptor. PMID: 23225320 [review] The H1, H2, and H3 receptors are all involved in recovery of neurological function when extracellular histamine is gradually increasing, after cerebral ischemia. PMID: 22860191 Study revealed that epithelial cells and vascular endothelial cells showed intense immunoreactivity for histamine H1 receptor inperennial allergic rhinitis. PMID: 23132961 The glu349asp polymorphism of histamine-1 receptor is not associated with antipsychotic induced weight gain. PMID: 21937795 evidence supports the involvement of histaminergic and gamma-aminobutyric acidergic mechanisms in the etiology of TS and show an overlap of rare CNVs in TS and autism spectrum disorder. PMID: 22169095 Measurement of H1R occupancy is a sensitive and absolute method to characterize the non-sedating property of drugs with H1 antagonistic activity. PMID: 21433074 the PKCdelta/ERK/poly(ADP-ribose) polymerase-1 signaling pathway is involved in histamine- or PMA-induced up-regulation of H1R gene expression in HeLa cells PMID: 21730054 H1 and PAR2 receptors enhance delivery of immune-competent cells and molecules by interrupting E-cadherin adhesion in lung epithelial cells. PMID: 21686228 crystal structure of the H(1)R complex with doxepin, a first-generation H(1)R antagonist PMID: 21697825 Results demonstrate that LPS, through TLR4 activation, up-regulates the expression and function of H1R and amplifies histamine-induced inflammatory responses in HCAEC. PMID: 21255012 Functional coupling of the H1R to Gq-PLC leads to the activation of RhoA and Rac small GTPases and suggest distinct roles for Rho GTPases in the control of cell proliferation by histamine. PMID: 19913013 could be detected at the feto-maternal interface of human PMID: 11603849 expressed on monocyte-derived dendritic cells PMID: 11898002 genetic variant of this protein and body weight change during clozapine treatment in schizophrenia PMID: 12218662 markedly different potency for activation of multiple signaling pathways by H1- and H2-HRs PMID: 12680587 there are three mechanisms for h1 receptor down regulation: phosphorylation of thr-140 or ser-398 or five sites PMID: 12755404 No significant differences in H1R or H2R mRNA levels between seasonal allergic rhinitic and nonrhinitic subjects in-season, despite observed differences in H reactivity. PMID: 12757445 Thr140 and Ser398 mainly contributed to downregulation, and Thr142 or Ser396 had a slight inhibitory effect on Thr140- or Ser398-mediated process, respectively PMID: 15328002 rapid termination of H1HR signaling is mediated by both the kinase activity and RGS function of GRK2 PMID: 15542600 expression of the histamine (H) receptors 1 (H1) and 2 (H2) by germinal, interstitial, and peritubular cells in the testes of fertile and infertile patients PMID: 15820830 gene expression regulation of HRH1 gene by HRH1 PMID: 15928828 expression in chondrocytes of osteoarthritic cartilage PMID: 15928843 analysis of agonist binding to histamine H(1) receptor PMID: 16027157 characterization of important steps in the activation of the human histamine H1 receptor PMID: 16408006 These data suggest the use of alternative promoters directing human H1 receptor gene expression, both within and between cell types. PMID: 16484687 The H1R-PKC-ERK pathway may play crucial roles in eliciting cytokine production from bronchial epithelial cells stimulated by histamine, leading to airway inflammation PMID: 16491014 results exclude the participation of histamine receptors other than the H1 subtype in the control of human intestinal motility by oxogenous histamine PMID: 16547808 histamine stimulates integrin alpha-V beta-3 expression in cultured trophoblast cells; the H1 receptor is implicated PMID: 16705383 Ascorbate enhancement of seven-transmembrane-spanning membrane receptor activity occurs in both adrenergic and histaminergic receptors. These receptors may play a significant role in maintaining extracellular ascorbate in a reduced state. PMID: 16760260 These data suggest postexercise skeletal muscle hyperemia exists in endurance trained men and women. PMID: 16888049 Histamine stimulates IL-6 release from SW982 cells by binding to the H1 receptor and this is coupled to the PI/PKC signal transduction pathway. PMID: 17122961 The data suggest a global functional analogy between H1 receptor activation and the meta I/meta II charge/discharge equilibrium in rhodopsin. PMID: 17243823

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

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