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 >  Protein>KIR3DL3 >KI3-H5259

Human KIR3DL3 / CD158z Protein, Fc Tag

分子别名(Synonym)

Killer cell immunoglobulin-like receptor 3DL3,CD158 antigen-like family member Z,Killer cell inhibitory receptor 1,CD158z,KIR3DL3,KIR3DL7,KIRC1

表达区间及表达系统(Source)

Human KIR3DL3, Fc Tag (KI3-H5259) is expressed from human 293 cells (HEK293). It contains AA Gln 26 - Leu 322 (Accession # Q8N743-1).

Predicted N-terminus: Gln 26

Request for sequence

蛋白结构(Molecular Characterization)

KIR3DL3 Structure

This protein carries a human IgG1 Fc tag at the C-terminus.

The protein has a calculated MW of 58.7 kDa. The protein migrates as 66 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>95% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 25 mM Arginine, 150 mM NaCl, pH7.5 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.

质量管理控制体系(QMS)

  1. 质量管理体系(ISO, GMP)
  2. 质量优势
  3. 质控流程
 

电泳(SDS-PAGE)

KIR3DL3 SDS-PAGE

Human KIR3DL3, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.

 
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背景(Background)

the inhibitory KIR surface receptors possessing three extracellular immunoglobin (Ig) domains (3D) and only one inhibitory motif within the long cytoplasmic domain (L) due to a premature stop codon. Moreover, exon 6 of KIR3DL3 encoding the stem part of the receptor is also absent, which differs from other inhibitory KIRs. Understanding the function of KIR3DL3 is further complicated by the unknown identity of the specific ligand, but its importance is highlighted by its presence in all human KIR haplotypes with
120 distinct polymorphic alleles of the coding sequence [

 

前沿进展

kir-mapper: A Toolkit for Killer-Cell Immunoglobulin-Like Receptor (KIR) Genotyping From Short-Read Second-Generation Sequencing Data
Castelli, Pereira, Paes et al
HLA (2025) 105 (3), e70092
Abstract: Killer cell immunoglobulin-like receptors (KIRs) regulate natural killer (NK) cell responses by activating or inhibiting their functions. Genotyping KIR genes from short-read second-generation sequencing data remains challenging as cross-alignments among genes and alignment failure arise from gene similarities and extreme polymorphism. Several bioinformatics pipelines and programs, including PING and T1K, have been developed to analyse KIR diversity. We found discordant results among tools in a systematic comparison using the same dataset. Additionally, they do not provide SNPs in the context of the reference genome, making them unsuitable for whole-genome association studies. Here, we present kir-mapper, a toolkit to analyse KIR genes from short-read sequencing, focusing on detecting KIR alleles, copy number variation, as well as SNPs and InDels in the context of the hg38 reference genome. kir-mapper can be used with whole-genome sequencing (WGS), whole-exome sequencing (WES) and sequencing data generated after probe-based capture methods. It presents strategies for phasing SNPs and InDels within and among genes, reducing the number of ambiguities reported by other methods. We have applied kir-mapper and other tools to data from various sources (WGS, WES) in worldwide samples and compared the results. Using long-read data as a truth set, we found that WGS kir-mapper analyses provided more accurate genotype calls than PING and T1K. For WES, kir-mapper provides more accurate genotype calls than T1K for some genes, particularly highly polymorphic ones (KIR3DL3 and KIR3DL2). This comparison highlights that the choice of method has to be considered as a function of the available data type and the targeted genes. kir-mapper is available at the GitHub repository (https://github.com/erickcastelli/kir-mapper/).© 2025 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Analysis of KIR and HLA Polymorphism in Chinese Individuals With COVID-19
Tao, You, Norman et al
HLA (2024) 104 (4), e15715
Abstract: Killer-cell immunoglobulin-like receptor (KIR) interactions with HLA class I have crucial roles in modulating NK cell function in response to viral infections. To explore the correlation between KIR/HLA and susceptibility to SARS-CoV-2 infection, we analysed polymorphism of KIR genes, haplotypes, HLA allotypes, and the interplay between KIR and HLA in individuals diagnosed with COVID-19. Compared to a population control group, we observed a significantly increased frequency of KIR3DL3*00802 in the COVID-19 group. When encoded by the HLA-B gene, the frequency of HLA-Bw4, a ligand for KIR3DL1, was at lower frequency in the COVID-19 group. Additionally, significantly elevated frequencies of KIR-Bx3, KIR3DL3*00301, 3DL3*048, and C1+HLA-C were identified in the COVID-19 group before multiple test correction, suggesting associations with susceptibility to SARS-CoV-2 infection. Our findings indicate that the KIR3DL3*00802 allele may be a high-risk factor for SARS-CoV-2 infection, while Bw4 encoded by HLA-B gene may confer protective effects against the infection.© 2024 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Characterisation of novel KIR alleles: KIR3DL3*0070105, KIR3DL3*0130202, KIR3DL1*0080104 and KIR3DL1*0010121
Sharma, Agarwal, Khadwal et al
HLA (2024) 104 (3), e15685
Abstract: KIR3DL3*0070105, KIR3DL3*0130202, KIR3DL1*0080104 and KIR3DL1*0010121, identified by next generation sequencing in individuals from India.© 2024 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Identification of four novel KIR alleles in haematopoietic stem cell donors of Indian origin
Agarwal, Sharma, Khadwal et al
HLA (2024) 104 (2), e15648
Abstract: Four novel KIR alleles KIR3DL1*0010120, KIR3DS1*01315, KIR3DL3*0020703 and KIR2DL4*0010310 identified using next-generation sequencing.© 2024 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Showing 1-4 of 97 papers.
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KIR3DL3靶点信息
英文全称:Killer cell immunoglobulin-like receptor 3DL3
中文全称:杀伤细胞免疫球蛋白样受体3DL3
种类:
上市药物数量:0详情
临床药物数量:1详情
最高研发阶段:临床一期
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