Others

Flagellin is the major structural protein monomer of bacterial flagella. Flagellin through binding to its receptor and activation of antigen presenting cells stimulates the innate and adaptive immune responses. Flagellin is used as an effective systemic or mucosal adjuvant to stimulate the immune system. Flagellin is an agonist of Toll-like receptor 5 (TLR5), a pattern recognition receptor (PRR) of the innate immune system expressed on the basolateral surface of intestinal epithelial cells and on the surface of a subset of intestinal dendritic cells. Flagellin is delivered into the cytosol of macrophages by the T3SS-1 of serotype Typhimurium, where it activates the cytosolic interleukin-1 (IL-1) converting enzyme-protease activating factor (IPAF), a nucleotide-binding and oligomerization domain-like receptor (NLR) of the innate immunesystem. Recognition of flagellin by IPAF leads to activation of the inflammasome, followed by proteolytic activation of IL-1 and IL-18.

Rift Valley fever virus (RVFV) (strain MP12) glycoprotein G1 Protein (His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 47.8 kDa and the accession number is A2T077.

Oncostatin M (OSM) is a glycoprotein belonging to the interleukin-6 family of cytokines that includes leukemia-inhibitory factor, granulocyte colony-stimulating factor, and interleukin 6. OSM encodes a growth regulator, which Inhibits the proliferation of a number of tumor cell lines. It stimulates proliferation of AIDS-KS cells. OSM regulates cytokine production, including IL-6, G-CSF and GM-CSF from endothelial cells. OSM is considered as a pleiotropic cytokine that initiates its biological activities through specific cell surface receptors. The low affinity LIF receptor that shares the similarity of containing protein gp130 has now been identified to be a component of a high- affinity OSM receptor that will transduce OSM signals. OSM has also been shown to play a role in both pro and anti-inflammatory actions. OSM may also be involved in many biometabolism processes including liver development, haematopoeisis, inflammation, bone formation and destruction and possibly CNS development.

IBV (strain M41) Spike glycoprotein (His) is expressed in E. coli expression system with C-6xHis tag. The predicted molecular weight is 26.8 kDa and the accession number is P12651.

Acts as a CD40 functional homolog to prevent apoptosis of infected B-lymphocytes and drive their proliferation. Functions as a constitutively active tumor necrosis factor receptor that induces the activation of several signaling pathways, including those of the NF-kappa-B family. LMP1 signaling leads to up-regulation of antiapoptotic proteins and provide growth signals in latently infected cells. Interacts with host UBE2I and subsequently affects the sumoylation state of several cellular proteins. For example, induces the sumoylation of host IRF7 thereby limiting its transcriptional activity and modulating the activation of innate immune responses. Inhibits also host IFN-alpha-stimulated STAT2 nuclear translocation and interferon-stimulated response element transcriptional activity by interacting with and inhibiting host TYK2.

Plays an essential role in viral RNA synthesis and also a role in suppressing innate immune signaling. Acts as a polymerase cofactor in the RNA polymerase transcription and replication complexes. Serves as nucleoprotein NP monomer chaperone prior to the formation of the large oligomeric RNA-bound complexes. Regulates RNA synthesis by modulating NP-RNA interactions and interacting with DYNLL1. VP35-NP interaction controls the switch between RNA-bound NP and free NP and thus the switch between genome replication and genome packaging into the nucleocapsid. Prevents establishment of cellular antiviral state, thereby suppressing host DC maturation. Acts by inhibiting host DDX58 RIG-I activation both by shielding dsRNA from detection and by preventing PRKRA binding to DDX58. Blocks virus-induced phosphorylation and activation of interferon regulatory factor 3 IRF3, a transcription factor critical for the induction of interferons alpha and beta. This blockage is produced through the interaction with and inhibition of host IKBKE and TBK1, producing a strong inhibition of the phosphorylation and activation of IRF3. Also inhibits the antiviral effect mediated by the host interferon-induced, double-stranded RNA-activated protein kinase EIF2AK2 PKR. Increases PIAS1-mediated SUMOylation of IRF7, thereby repressing interferon transcription. Also acts as a suppressor of RNA silencing by interacting with host DICER1, TARBP2 TRBP and PRKRA PACT. As a dimer, binds and sequesters dsRNA contributing to the inhibition of interferon production.

Stem Cell Factor (SCF) is a hematopoietic growth factor that exerts its activity at the early stages of hematopoiesis. SCF stimulates the proliferation of myeloid, erythroid, and lymphoid progenitors in bone marrow cultures and has been shown to act synergistically with colony stimulating factors.

After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane. CHRNA1 Protein, Human, Recombinant (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 31.1 kDa and the accession number is P02708.

Plays a key role in the switch from latent infection to lytic cycle producing new virions. Acts as a transcription factor, inducing early lytic cycle genes, and as a origin binding protein for genome replication. BZLF1 activates the promoter of another EBV gene (BSLF2+BMLF1).

Attaches the virus to host cellular receptor, inducing endocytosis of the virion. In the endosome, the acidic pH induces conformational changes in the glycoprotein trimer, which trigger fusion between virus and cell membrane. There is convincing in vitro evidence that the muscular form of the nicotinic acetylcholine receptor (nAChR), the neuronal cell adhesion molecule (NCAM), and the p75 neurotrophin receptor (p75NTR) bind glycoprotein and thereby facilitate rabies virus entry into cells. Rabies virus (RABV) (strain CVS-11) Glycoprotein (His & Myc & SUMO) is expressed in E. coli expression system with N-10xHis-SUMO and C-Myc tag. The predicted molecular weight is 69.7 kDa and the accession number is O92284.

After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane. CHRNG Protein, Human, Recombinant (E. coli, His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 29.6 kDa and the accession number is P07510.

CCHF virus (isolate C68031) Nucleoprotein NP Protein (B2M & His) is expressed in E. coli.

After binding acetylcholine, the AChR responds by an extensive change in conformation that affects all subunits and leads to opening of an ion-conducting channel across the plasma membrane. CHRNE Protein, Human, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 32.5 kDa and the accession number is Q04844.

CLEC18A Protein, Human, Recombinant (His & SUMO) is expressed in E. coli.

Plays a key role in the activation of the host resting B-cell and stimulation of B-cell proliferation. Acts by up-regulating the expression of viral EBNA1-6, LMP1, LMP2A and LMP2B genes, as well as several host genes including CD21, CD23 and MYC. Activates transcription by acting as an adapter molecule that binds to cellular sequence-specific DNA-binding proteins such as host CBF1, SMARCB1 and SPI1. Once EBNA2 is near promoter sites, its acidic activating domain recruits basal and activation-associated transcription factors TFIIB, TAF40, TFIIH components ERCC2 and ERCC3, and CBP in order to promote transcription. Alternatively, EBNA2 can affect activities of cell cycle regulators and retard cell cycle progression at G2 M phase. It also induces chromosomal instability, by disrupting mitotic checkpoints, multi-nucleation and formation of micronuclei in infected cells.

Plays an essential role in the initiation of viral DNA synthesis. Binds specifically to an inverted terminal repeat element (ITR) on the 3' and 5' ends of the viral DNA, where it cleaves a site specifically to generate a priming site for initiation of the synthesis of a complementary strand. Plays also a role as transcriptional regulator, DNA helicase and as key factors in site-specific integration of the viral genome. Regulates host PKA activity by interacting with host PRKX as a mechanism of interfering with helper virus propagation and promoting its own replication. Inhibits the host cell cycle G1 S, S and G2 M transitions. These arrests may provide essential cellular factors for viral DNA replication.

Human cytomegalovirus (HCMV) (strain AD169) Uncharacterized protein UL128 (His) is expressed in E. coli.

Human Papilloma Virus type 16 (HPV 16) Protein E6 (E. coli, His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 23.2 kDa and the accession number is P03126.

Vaccinia virus (VACV) (strain Copenhagen) Protein B5 (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 30.53 kDa and the accession number is P21115.

Osteopontin Protein, Human, Recombinant (aa 17-166, His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 20.64 kDa. and the accession number is P10451.

May act as transcriptional regulator. Induces apoptosis in infected cells. Element of infectious replication cycle. Chicken anemia virus (isolate USA 26p4) Apoptin Protein (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 17.1 kDa and the accession number is P54095.

IBV (strain UK 123 82) Spike glycoprotein (E. coli, His) is expressed in E. coli expression system with C-6xHis tag. The predicted molecular weight is 25.7 kDa and the accession number is P30206.

Canine distemper virus (strain Onderstepoort) Fusion glycoprotein F0 (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 67.5 kDa and the accession number is P12569.

Major viral capsid protein that encapsidates the viral genome. Binds to the 5' end of the genomic RNA. Hepatitis E virus genotype 3 (HEV-3) Capsid protein (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 29.3 kDa and the accession number is Q9YLQ9.

Prevents premature death of the host cell during virus production, which would otherwise reduce the amount of progeny virus. Acts as a host B-cell leukemia lymphoma 2 (Bcl-2) homolog, and interacts with pro-apoptotic proteins to prevent mitochondria permeabilization, release of cytochrome c and subsequent apoptosis of the host cell.

Cysteine protease that plays an essential role in host liquefaction to facilitate horizontal transmission of the virus. Accumulates within infected cells as an inactive proenzyme (proV-CATH), which is activated by proteolytic cleavage upon cell death. AcMNPV Viral cathepsin Protein (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 39.9 kDa and the accession number is P25783.

Packages the positive strand viral genome RNA into a helical ribonucleocapsid (RNP) and plays a fundamental role during virion assembly through its interactions with the viral genome and membrane protein M. Plays an important role in enhancing the efficiency of subgenomic viral RNA transcription as well as viral replication. IBV (strain SAIB20) Nucleoprotein NP Protein (His) is expressed in E. coli expression system with C-6xHis tag. The predicted molecular weight is 46.1 kDa and the accession number is Q8JMI6.

The replicase polyprotein of coronaviruses is a multifunctional protein: it contains the activities necessary for the transcription of negative stranded RNA, leader RNA, subgenomic mRNAs and progeny virion RNA as well as proteinases responsible for the cleavage of the polyprotein into functional products.; NendoU is a Mn(2+)-dependent, uridylate-specific enzyme, which leaves 2'-3'-cyclic phosphates 5' to the cleaved bond. IBV (strain KB8523) Replicase polyprotein 1ab (His) is expressed in Baculovirus insect cells with C-6xHis tag. The predicted molecular weight is 30.1 kDa and the accession number is P12723.

Packages the positive strand viral genome RNA into a helical ribonucleocapsid (RNP) and plays a fundamental role during virion assembly through its interactions with the viral genome and membrane protein M. Plays an important role in enhancing the efficiency of subgenomic viral RNA transcription as well as viral replication. IBV (strain Vic S) Nucleoprotein NP Protein (His) is expressed in HEK293 mammalian cells with C-6xHis tag. The predicted molecular weight is 47.4 kDa and the accession number is Q96598.

Human herpesvirus 6A (HHV-6 variant A) (strain Uganda-1102) Triplex capsid protein 1 (His) is expressed in E. coli.

Human herpesvirus 7 (HHV-7) (strain JI) Probable ganciclovir kinase (His & Myc) is expressed in E. coli.

Bovine viral diarrhea virus (strain SD-1) Genome polyprotein (E. coli, His) is expressed in E. coli expression system with N-10xHis tag. The predicted molecular weight is 25.0 kDa and the accession number is Q01499.

Encapsidates the genome protecting it from nucleases. The encapsidated genomic RNA is termed the nucleocapsid (NC) and serves as template for transcription and replication. Seems to participate in the nuclear relocalization of host PABP1, thereby inhibiting host cellular translation. Bunyavirus La Crosse Nucleoprotein NP Protein (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 28.5 kDa and the accession number is P04873.

Human herpesvirus 2 (HHV-2) (strain HG52) Tegument protein VP22 (His) is expressed in E. coli.

Major attachment protein that mediates binding of the virus to cell surface heparan sulfate or chondroitin sulfate. Plays also a role in host immune evasion by inhibiting the host complement cascade activation. Human herpesvirus 2 (HHV-2) (strain HG52) Envelope glycoprotein C (His) is expressed in E. coli expression system with N-10xHis tag. The predicted molecular weight is 50.5 kDa and the accession number is Q89730.

Monkeypox virus (MPXV) is double-stranded DNA virus belonging to the genus orthopoxvirus that causes a smallpox-like disease in humans. A35R Protein, Monkeypox virus, Recombinant (His) is expressed in HEK293 mammalian cells with C-His tag. The predicted molecular weight is 14.77 kDa and the accession number is QJQ40286.1.

Promotes both transcription and replication of genomic RNA. Following virus entry into host cell, provides nuclear import of HDV RNPs thanks to its nuclear localization signal. May interact with host RNA polymerase II thereby changing its template requirement from DNA to RNA. RNA pol II complex would then acts as an RNA-directed RNA polymerase, and transcribe and replicate HDV genome. Hepatitis delta virus genotype I (HDV) Small delta antigen Protein (His & Myc) is expressed in yeast with N-6xHis and C-Myc tag. The predicted molecular weight is 25.4 kDa and the accession number is P06934.

Forms spikes that protrude from each vertex of the icosahedral capsid. Interacts with host receptor CD46 to provide virion initial attachment to target cell. Fiber proteins are shed during virus entry, when virus is still at the cell surface. Human adenovirus B serotype 11 (strain BC34) Fiber protein (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 40.6 kDa and the accession number is P35773.

Human adenovirus C serotype 5 E1B 55 kDa protein (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 62.4 kDa and the accession number is P03243.

High affinity receptor for the C-C type chemokines CCL17 TARC, CCL22 MDC and CKLF isoform 1 CKLF1. The activity of this receptor is mediated by G(i) proteins which activate a phosphatidylinositol-calcium second messenger system. Can function as a chemoattractant homing receptor on circulating memory lymphocytes and as a coreceptor for some primary HIV-2 isolates. In the CNS, could mediate hippocampal-neuron survival. CCR4 Protein, Human, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 19.0 kDa and the accession number is P51679.

Matrix protein p15 forms the outer shell of the core of the virus, lining the inner surface of the viral membrane.; Capsid protein p24 forms the conical core of the virus that encapsulates the genomic RNA-nucleocapsid complex.; Nucleocapsid protein p13 encapsulates and protects viral dimeric unspliced (genomic) RNA. Binds these RNAs through its zinc fingers. FIV (isolate Petaluma) Gag polyprotein (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 22.1 kDa and the accession number is P16087.

Bovine viral diarrhea virus (strain SD-1) Genome polyprotein (His) is expressed in Baculovirus insect cells with N-10xHis tag. The predicted molecular weight is 21.4 kDa and the accession number is Q01499.

Chikungunya virus (strain S27-African prototype) Non-structural protein 4 (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 31.1 kDa and the accession number is Q8JUX6.

Human rhinovirus A serotype 89 (HRV-89) (strain 41467-Gallo) Genome polyprotein (Avi & His & MBP), Biotinylated is expressed in E. coli expression system with N-MBP and C-6xHis-Avi tag. The predicted molecular weight is 80.4 kDa and the accession number is P07210.

Porcine circovirus 2 (PCV2) Capsid Protein (E. coli, His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 32.0 kDa and the accession number is O56129.

Human herpesvirus 1 (HHV-1) (strain 17) Envelope glycoprotein G (His) is expressed in in vitro E. coli expression system.

VSIV (strain 94GUB Central America) L Protein (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 25.4 kDa and the accession number is Q8B0H0.

Attaches the virus to sialic acid-containing cell receptors and thereby initiating infection. Binding of HN protein to the receptor induces a conformational change that allows the F protein to trigger virion cell membranes fusion.; Neuraminidase activity ensures the efficient spread of the virus by dissociating the mature virions from the neuraminic acid containing glycoproteins. Mumps virus (strain Miyahara vaccine) Hemagglutinin-neuraminidase Protein (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 27.0 kDa and the accession number is P11235.