Recombinant Psittacid herpesvirus 1 Serine/threonine-protein kinase UL13 (UL13)

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Description

Introduction to Recombinant Psittacid Herpesvirus 1 Serine/threonine-protein kinase UL13 (UL13)

Recombinant Psittacid herpesvirus 1 Serine/threonine-protein kinase UL13 (UL13) is a protein kinase derived from Psittacid herpesvirus 1 (PsHV-1), which causes Pacheco's disease in psittacine birds. This enzyme belongs to the conserved herpesvirus protein kinase (CHPK) family, similar to other herpesvirus UL13 homologs like HSV pUL13, EBV pBGLF4, and HCMV pUL97 . The UL13 protein kinases play crucial roles in viral replication, transcription, translation, and immune evasion by phosphorylating various host and viral proteins.

Role in Immune Evasion

Herpesvirus UL13 homologs are known to evade the host immune response by inhibiting key signaling pathways. For example, they can phosphorylate and inhibit interferon regulatory factor 3 (IRF3), leading to reduced type I interferon production . Additionally, UL13 can promote the ubiquitination and degradation of host immune proteins, further impairing the host's ability to mount an effective antiviral response.

Research Findings and Data

While specific data on recombinant PsHV-1 UL13 is limited, studies on other herpesvirus UL13 homologs provide valuable insights into their functions and potential as therapeutic targets. The following table summarizes some key features of herpesvirus UL13 homologs:

VirusUL13 HomologFunction
HSV-1pUL13Essential for viral replication and immune evasion
EBVpBGLF4Regulates EBV immune genes
HCMVpUL97Involved in viral replication
PsHV-1UL13Limited data available; presumed roles similar to other UL13 homologs

References

  1. Frontiers in Immunology: Mechanism of herpesvirus protein kinase UL13 in immune escape...

  2. PMC: Psittacid Herpesvirus 1 and Infectious Laryngotracheitis Virus

Product Specs

Form
Lyophilized powder
Note: While we prioritize shipping the format currently in stock, please specify any format requirements in your order notes for customized preparation.
Lead Time
Delivery times vary depending on the purchasing method and location. Please contact your local distributor for precise delivery estimates.
Note: All proteins are shipped with standard blue ice packs. Dry ice shipping requires advance notice and incurs additional charges.
Notes
Avoid repeated freeze-thaw cycles. Store working aliquots at 4°C for up to one week.
Reconstitution
Centrifuge the vial briefly before opening to collect the contents. Reconstitute the protein in sterile, deionized water to a concentration of 0.1-1.0 mg/mL. For long-term storage, we recommend adding 5-50% glycerol (final concentration) and aliquoting at -20°C/-80°C. Our standard glycerol concentration is 50%, provided as a guideline for your reference.
Shelf Life
Shelf life depends on various factors, including storage conditions, buffer composition, temperature, and protein stability. Generally, liquid formulations have a 6-month shelf life at -20°C/-80°C, while lyophilized forms have a 12-month shelf life at -20°C/-80°C.
Storage Condition
Upon receipt, store at -20°C/-80°C. Aliquot for multiple uses. Avoid repeated freeze-thaw cycles.
Tag Info
The tag type is determined during the manufacturing process.
The specific tag type is determined during production. If you require a specific tag, please inform us, and we will prioritize its development.
Synonyms
UL13; Serine/threonine-protein kinase UL13; EC 2.7.11.1
Buffer Before Lyophilization
Tris/PBS-based buffer, 6% Trehalose.
Datasheet
Please contact us to get it.
Expression Region
1-460
Protein Length
full length protein
Purity
>85% (SDS-PAGE)
Species
Psittacid herpesvirus 1 (isolate Amazon parrot/-/97-0001/1997) (PsHV-1) (Pacheco's disease virus)
Target Names
UL13
Target Protein Sequence
MATRGRPGAK QVADHSVSDG GEQRRIPQKP PGPERCDVCS AVSAAGAAAD LIDVAPLEED LTKEPQQIVV TIMSNDPAKV CLKVDPALHY RNVELEPYRF LGRGGYGSVF YSRRANVAVK ALTHGASFRW ELAVSLIVSS AARRQELSDI AKHFLQIYAF SSVEKIIVME YIRHDLRTYL DEHCKPVTQS ALDALVREFR GLAKALAFFH IECGLAHLDV KQNNILVNCD PRTGDPVRMV LADFSLAAIN GNSFLNKCCM VCPGRPGVTG VHIIDTEDAV NSLPSNNILL FRMSRRPPEF LLDYCNGVGP RCGEVMGAMT TFAMDVFALG SVVHEVLLLC LSRVLGRDPF PHMTCTDEPM DHKTILSLLA YRLALTDYLS QSWSSAGFVN PAGTREGISS ALQWECMRDM FLASAEAWTR TVRRKMNGAR SPSMFADILD LSILLCHFDP DVRRTVSALA
Uniprot No.

Target Background

Function
Recombinant Psittacid herpesvirus 1 Serine/threonine-protein kinase UL13 (UL13) is a multifunctional serine/threonine kinase involved in several crucial processes. These include viral particle egress from the nucleus, actin cytoskeleton modulation, and regulation of viral and cellular gene expression. It regulates the nuclear localization of viral envelopment factors, UL34 and UL31 homologs, by phosphorylating the US3 kinase homolog, highlighting its role in nuclear egress. Furthermore, it disrupts host nuclear lamins, including LMNA and LMNB1. It also phosphorylates the viral Fc receptor composed of glycoproteins E (gE) and I (gI). UL13 homolog-mediated phosphorylation of glycoprotein E (gE) alters its subcellular localization from the early endosome to the plasma membrane. Finally, it participates in the transcriptional regulation of cellular and viral mRNAs, primarily by phosphorylating the viral transcriptional regulator ICP22 homolog.
Database Links

KEGG: vg:2657010

Protein Families
Protein kinase superfamily, Ser/Thr protein kinase family
Subcellular Location
Virion tegument. Host nucleus.

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