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  1. Article ; Online: A binary module for microbiota-mediated regulation of γδ17 cells, hallmarked by microbiota-driven expression of programmed cell death protein 1.

    Huang, Hsin-I / Xue, Yue / Jewell, Mark L / Tan, Chin Yee / Theriot, Barbara / Aggarwal, Nupur / Dockterman, Jacob / Lin, Yang-Ding / Schroeder, Erin A / Wang, Donghai / Xiong, Na / Coers, Jörn / Shinohara, Mari L / Surana, Neeraj K / Hammer, Gianna Elena

    Cell reports

    2023  Volume 42, Issue 9, Page(s) 113143

    Language English
    Publishing date 2023-09-07
    Publishing country United States
    Document type Published Erratum
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2023.113143
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A binary module for microbiota-mediated regulation of γδ17 cells, hallmarked by microbiota-driven expression of programmed cell death protein 1.

    Huang, Hsin-I / Xue, Yue / Jewell, Mark L / Tan, Chin Yee / Theriot, Barbara / Aggarwal, Nupur / Dockterman, Jacob / Lin, Yang-Ding / Schroeder, Erin A / Wang, Donghai / Xiong, Na / Coers, Jörn / Shinohara, Mari L / Surana, Neeraj K / Hammer, Gianna Elena

    Cell reports

    2023  Volume 42, Issue 8, Page(s) 112951

    Abstract: Little is known about how microbiota regulate innate-like γδ T cells or how these restrict their effector functions within mucosal barriers, where microbiota provide chronic stimulation. Here, we show that microbiota-mediated regulation of γδ17 cells is ... ...

    Abstract Little is known about how microbiota regulate innate-like γδ T cells or how these restrict their effector functions within mucosal barriers, where microbiota provide chronic stimulation. Here, we show that microbiota-mediated regulation of γδ17 cells is binary, where microbiota instruct in situ interleukin-17 (IL-17) production and concomitant expression of the inhibitory receptor programmed cell death protein 1 (PD-1). Microbiota-driven expression of PD-1 and IL-17 and preferential adoption of a PD-1
    MeSH term(s) Humans ; Interleukin-17/metabolism ; Programmed Cell Death 1 Receptor ; Receptors, Antigen, T-Cell, gamma-delta/metabolism ; Inflammation/metabolism ; Microbiota
    Chemical Substances Interleukin-17 ; Programmed Cell Death 1 Receptor ; Receptors, Antigen, T-Cell, gamma-delta
    Language English
    Publishing date 2023-08-08
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2023.112951
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: A binary module for microbiota-mediated regulation of γδ17 cells, hallmarked by microbiota-driven expression of programmed cell death protein 1

    Hsin-I Huang / Yue Xue / Mark L. Jewell / Chin Yee Tan / Barbara Theriot / Nupur Aggarwal / Jacob Dockterman / Yang-Ding Lin / Erin A. Schroeder / Donghai Wang / Na Xiong / Jörn Coers / Mari L. Shinohara / Neeraj K. Surana / Gianna Elena Hammer

    Cell Reports, Vol 42, Iss 8, Pp 112951- (2023)

    2023  

    Abstract: Summary: Little is known about how microbiota regulate innate-like γδ T cells or how these restrict their effector functions within mucosal barriers, where microbiota provide chronic stimulation. Here, we show that microbiota-mediated regulation of γδ17 ... ...

    Abstract Summary: Little is known about how microbiota regulate innate-like γδ T cells or how these restrict their effector functions within mucosal barriers, where microbiota provide chronic stimulation. Here, we show that microbiota-mediated regulation of γδ17 cells is binary, where microbiota instruct in situ interleukin-17 (IL-17) production and concomitant expression of the inhibitory receptor programmed cell death protein 1 (PD-1). Microbiota-driven expression of PD-1 and IL-17 and preferential adoption of a PD-1high phenotype are conserved for γδ17 cells across multiple mucosal barriers. Importantly, microbiota-driven PD-1 inhibits in situ IL-17 production by mucosa-resident γδ17 effectors, linking microbiota to their simultaneous activation and suppression. We further show the dynamic nature of this microbiota-driven module and define an inflammation-associated activation state for γδ17 cells marked by augmented PD-1, IL-17, and lipid uptake, thus linking the microbiota to dynamic subset-specific activation and metabolic remodeling to support γδ17 effector functions in a microbiota-dense tissue environment.
    Keywords CP: Immunology ; CP: Microbiology ; Biology (General) ; QH301-705.5
    Language English
    Publishing date 2023-08-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Molecular control of steady-state dendritic cell maturation and immune homeostasis.

    Hammer, Gianna Elena / Ma, Averil

    Annual review of immunology

    2013  Volume 31, Page(s) 743–791

    Abstract: Dendritic cells (DCs) are specialized sentinels responsible for coordinating adaptive immunity. This function is dependent upon coupled sensitivity to environmental signs of inflammation and infection to cellular maturation-the programmed alteration of ... ...

    Abstract Dendritic cells (DCs) are specialized sentinels responsible for coordinating adaptive immunity. This function is dependent upon coupled sensitivity to environmental signs of inflammation and infection to cellular maturation-the programmed alteration of DC phenotype and function to enhance immune cell activation. Although DCs are thus well equipped to respond to pathogens, maturation triggers are not unique to infection. Given that immune cells are exquisitely sensitive to the biological functions of DCs, we now appreciate that multiple layers of suppression are required to restrict the environmental sensitivity, cellular maturation, and even life span of DCs to prevent aberrant immune activation during the steady state. At the same time, steady-state DCs are not quiescent but rather perform key functions that support homeostasis of numerous cell types. Here we review these functions and molecular mechanisms of suppression that control steady-state DC maturation. Corruption of these steady-state operatives has diverse immunological consequences and pinpoints DCs as potent drivers of autoimmune and inflammatory disease.
    MeSH term(s) Animals ; Cell Differentiation/genetics ; Cell Differentiation/immunology ; Dendritic Cells/cytology ; Dendritic Cells/immunology ; Dendritic Cells/metabolism ; Homeostasis/genetics ; Homeostasis/immunology ; Humans ; Lectins, C-Type/physiology ; Membrane Glycoproteins/physiology ; Mice ; Receptors, Immunologic/physiology ; Receptors, Pattern Recognition/physiology ; Signal Transduction/genetics ; Signal Transduction/immunology ; Toll-Like Receptors/physiology
    Chemical Substances CLEC4A protein, human ; Dcir protein, mouse ; Lectins, C-Type ; Membrane Glycoproteins ; Receptors, Immunologic ; Receptors, Pattern Recognition ; Toll-Like Receptors
    Language English
    Publishing date 2013-01-17
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 604953-9
    ISSN 1545-3278 ; 0732-0582
    ISSN (online) 1545-3278
    ISSN 0732-0582
    DOI 10.1146/annurev-immunol-020711-074929
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A Requirement of Protein Geranylgeranylation for Chemokine Receptor Signaling and Th17 Cell Function in an Animal Model of Multiple Sclerosis.

    Swan, Gregory / Geng, Jia / Park, Eunchong / Ding, Quanquan / Zhou, John / Walcott, Ciana / Zhang, Junyi J / Huang, Hsin-I / Hammer, Gianna Elena / Wang, Donghai

    Frontiers in immunology

    2021  Volume 12, Page(s) 641188

    Abstract: Precisely controlled lymphocyte migration is critically required for immune surveillance and successful immune responses. Lymphocyte migration is strictly regulated by chemokines and chemokine receptors. Here we show that protein geranylgeranylation, a ... ...

    Abstract Precisely controlled lymphocyte migration is critically required for immune surveillance and successful immune responses. Lymphocyte migration is strictly regulated by chemokines and chemokine receptors. Here we show that protein geranylgeranylation, a form of post-translational protein lipid modification, is required for chemokine receptor-proximal signaling. Mature thymocytes deficient for protein geranylgeranylation are impaired for thymus egress. Circulating mature T cells lacking protein geranylgeranylation fail to home to secondary lymphoid organs or to transmigrate in response to chemokines
    MeSH term(s) Animals ; Cell Differentiation/immunology ; Chemotaxis, Leukocyte/immunology ; Encephalomyelitis, Autoimmune, Experimental/immunology ; Mice ; Multiple Sclerosis ; Protein Prenylation/immunology ; Receptors, Chemokine/immunology ; Signal Transduction/immunology ; Th17 Cells/immunology
    Chemical Substances Receptors, Chemokine
    Language English
    Publishing date 2021-03-22
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2021.641188
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Th17 Immunity in the Colon Is Controlled by Two Novel Subsets of Colon-Specific Mononuclear Phagocytes.

    Huang, Hsin-I / Jewell, Mark L / Youssef, Nourhan / Huang, Min-Nung / Hauser, Elizabeth R / Fee, Brian E / Rudemiller, Nathan P / Privratsky, Jamie R / Zhang, Junyi J / Reyes, Estefany Y / Wang, Donghai / Taylor, Gregory A / Gunn, Michael D / Ko, Dennis C / Cook, Donald N / Chandramohan, Vidyalakshmi / Crowley, Steven D / Hammer, Gianna Elena

    Frontiers in immunology

    2021  Volume 12, Page(s) 661290

    Abstract: Intestinal immunity is coordinated by specialized mononuclear phagocyte populations, constituted by a diversity of cell subsets. Although the cell subsets constituting the mononuclear phagocyte network are thought to be similar in both small and large ... ...

    Abstract Intestinal immunity is coordinated by specialized mononuclear phagocyte populations, constituted by a diversity of cell subsets. Although the cell subsets constituting the mononuclear phagocyte network are thought to be similar in both small and large intestine, these organs have distinct anatomy, microbial composition, and immunological demands. Whether these distinctions demand organ-specific mononuclear phagocyte populations with dedicated organ-specific roles in immunity are unknown. Here we implement a new strategy to subset murine intestinal mononuclear phagocytes and identify two novel subsets which are colon-specific: a macrophage subset and a Th17-inducing dendritic cell (DC) subset. Colon-specific DCs and macrophages co-expressed CD24 and CD14, and surprisingly, both were dependent on the transcription factor IRF4. Novel IRF4-dependent CD14
    MeSH term(s) Animals ; Antigen-Presenting Cells/immunology ; Antigen-Presenting Cells/metabolism ; CD24 Antigen/immunology ; CD24 Antigen/metabolism ; Colon/cytology ; Colon/immunology ; Colon/metabolism ; Cytokines/genetics ; Cytokines/immunology ; Cytokines/metabolism ; Dendritic Cells/immunology ; Dendritic Cells/metabolism ; Gene Expression/immunology ; Interferon Regulatory Factors/immunology ; Interferon Regulatory Factors/metabolism ; Intestine, Small/immunology ; Lipopolysaccharide Receptors/immunology ; Lipopolysaccharide Receptors/metabolism ; Macrophages/immunology ; Macrophages/metabolism ; Mice, 129 Strain ; Mice, Knockout ; Mice, Transgenic ; Phagocytes/immunology ; Phagocytes/metabolism ; Receptor, Anaphylatoxin C5a/immunology ; Receptor, Anaphylatoxin C5a/metabolism ; Th17 Cells/immunology ; Th17 Cells/metabolism ; Mice
    Chemical Substances CD24 Antigen ; Cytokines ; Interferon Regulatory Factors ; Lipopolysaccharide Receptors ; Receptor, Anaphylatoxin C5a ; interferon regulatory factor-4
    Language English
    Publishing date 2021-04-28
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2021.661290
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: The Ubiquitin-Modifying Enzyme A20 Terminates C-Type Lectin Receptor Signals and Is a Suppressor of Host Defense against Systemic Fungal Infection.

    Liang, Jie / Zhang, Junyi J / Huang, Hsin-I / Kanayama, Masashi / Youssef, Nourhan / Jin, Yingai J / Reyes, Estefany Y / Abram, Clare L / Yang, Shigao / Lowell, Clifford A / Wang, Donghai / Shao, Ling / Shinohara, Mari L / Zhang, Jennifer Y / Hammer, Gianna Elena

    Infection and immunity

    2020  Volume 88, Issue 9

    Abstract: C-type lectin receptors (CLRs) play key roles in antifungal defense. CLR-induced NF-κB is central to CLR functions in immunity, and thus, molecules that control the amplitude of CLR-induced NF-κB could profoundly influence host defense against fungal ... ...

    Abstract C-type lectin receptors (CLRs) play key roles in antifungal defense. CLR-induced NF-κB is central to CLR functions in immunity, and thus, molecules that control the amplitude of CLR-induced NF-κB could profoundly influence host defense against fungal pathogens. However, little is known about the mechanisms that negatively regulate CLR-induced NF-κB, and molecules which act on the CLR family broadly and which directly regulate acute CLR-signaling cascades remain unidentified. Here, we identify the ubiquitin-editing enzyme A20 as a negative regulator of acute NF-κB activation downstream of multiple CLR pathways. Absence of A20 suppression results in exaggerated CLR responses in cells which are A20 deficient and also cells which are A20 haplosufficient, including multiple primary immune cells. Loss of a single allele of A20 results in enhanced defense against systemic
    MeSH term(s) Animals ; Bone Marrow Cells/immunology ; Bone Marrow Cells/microbiology ; Candida albicans/immunology ; Candida albicans/pathogenicity ; Candidiasis/genetics ; Candidiasis/immunology ; Candidiasis/microbiology ; Dendritic Cells/immunology ; Dendritic Cells/microbiology ; Female ; Fetus ; Host Microbial Interactions/genetics ; Host Microbial Interactions/immunology ; Immunity, Innate ; Lectins, C-Type/genetics ; Lectins, C-Type/immunology ; Liver/immunology ; Liver/microbiology ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Myeloid Differentiation Factor 88/genetics ; Myeloid Differentiation Factor 88/immunology ; NF-kappa B/genetics ; NF-kappa B/immunology ; Primary Cell Culture ; Protein Processing, Post-Translational ; Signal Transduction ; TNF Receptor-Associated Factor 6/genetics ; TNF Receptor-Associated Factor 6/immunology ; Tumor Necrosis Factor alpha-Induced Protein 3/deficiency ; Tumor Necrosis Factor alpha-Induced Protein 3/genetics ; Tumor Necrosis Factor alpha-Induced Protein 3/immunology ; Ubiquitin/genetics ; Ubiquitin/immunology ; Ubiquitination
    Chemical Substances Lectins, C-Type ; Myd88 protein, mouse ; Myeloid Differentiation Factor 88 ; NF-kappa B ; TNF Receptor-Associated Factor 6 ; TRAF6 protein, mouse ; Ubiquitin ; Tumor Necrosis Factor alpha-Induced Protein 3 (EC 3.4.19.12) ; Tnfaip3 protein, mouse (EC 3.4.22.-)
    Language English
    Publishing date 2020-08-19
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 218698-6
    ISSN 1098-5522 ; 0019-9567
    ISSN (online) 1098-5522
    ISSN 0019-9567
    DOI 10.1128/IAI.00048-20
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: The final touches make perfect the peptide-MHC class I repertoire.

    Hammer, Gianna Elena / Kanaseki, Takayuki / Shastri, Nilabh

    Immunity

    2007  Volume 26, Issue 4, Page(s) 397–406

    Abstract: Major histocompatibility complex (MHC) class I molecules present short, perfectly cleaved peptides on the cell surface for immune surveillance by CD8(+) T cells. The pathway for generating these peptides begins in the cytoplasm, and the peptide-MHC I ( ... ...

    Abstract Major histocompatibility complex (MHC) class I molecules present short, perfectly cleaved peptides on the cell surface for immune surveillance by CD8(+) T cells. The pathway for generating these peptides begins in the cytoplasm, and the peptide-MHC I (pMHC I) repertoire is finalized in the endoplasmic reticulum. Recent studies show that the peptides for MHC I are customized by the ER aminopeptidase associated with antigen processing and by dynamic interactions within the MHC peptide-loading complex. Failure to customize the pMHC I repertoire has profound immunological consequences.
    MeSH term(s) Animals ; Cytoplasm/immunology ; Endoplasmic Reticulum/enzymology ; Endoplasmic Reticulum/immunology ; Histocompatibility Antigens Class I/metabolism ; Humans ; Leucyl Aminopeptidase/deficiency ; Leucyl Aminopeptidase/genetics ; Leucyl Aminopeptidase/metabolism ; Membrane Transport Proteins/metabolism ; Oxidation-Reduction ; Peptides/immunology ; Peptides/metabolism ; Protein Disulfide-Isomerases/metabolism
    Chemical Substances Histocompatibility Antigens Class I ; Membrane Transport Proteins ; Peptides ; tapasin ; Leucyl Aminopeptidase (EC 3.4.11.1) ; puromycin-insensitive leucyl-specific aminopeptidase (EC 3.4.11.1) ; Protein Disulfide-Isomerases (EC 5.3.4.1)
    Language English
    Publishing date 2007-04
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 1217235-2
    ISSN 1097-4180 ; 1074-7613
    ISSN (online) 1097-4180
    ISSN 1074-7613
    DOI 10.1016/j.immuni.2007.04.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: In the absence of aminopeptidase ERAAP, MHC class I molecules present many unstable and highly immunogenic peptides.

    Hammer, Gianna Elena / Gonzalez, Federico / James, Edward / Nolla, Hector / Shastri, Nilabh

    Nature immunology

    2007  Volume 8, Issue 1, Page(s) 101–108

    Abstract: Immunosurveillance by cytotoxic T cells requires that cells generate a diverse spectrum of peptides for presentation by major histocompatibility complex (MHC) class I molecules. Those peptides are generated by proteolysis, which begins in the cytoplasm ... ...

    Abstract Immunosurveillance by cytotoxic T cells requires that cells generate a diverse spectrum of peptides for presentation by major histocompatibility complex (MHC) class I molecules. Those peptides are generated by proteolysis, which begins in the cytoplasm and continues in the endoplasmic reticulum by the unique aminopeptidase ERAAP. The overall extent to which trimming by ERAAP modifies the peptide pool and the immunological consequences of ERAAP deficiency are unknown. Here we show that the peptide-MHC repertoire of ERAAP-deficient mice was missing many peptides. Furthermore, ERAAP-deficient cells presented many unstable and structurally unique peptide-MHC complexes, which elicited potent CD8+ T cell and B cell responses. Thus, ERAAP is a 'quintessential editor' of the peptide-MHC repertoire and, paradoxically, its absence enhances immunogenicity.
    MeSH term(s) Animals ; Antigen Presentation/immunology ; CD8-Positive T-Lymphocytes/immunology ; Cells, Cultured ; Female ; Histocompatibility Antigens Class I/immunology ; Leucyl Aminopeptidase/deficiency ; Leucyl Aminopeptidase/genetics ; Ligands ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Peptides/immunology
    Chemical Substances Histocompatibility Antigens Class I ; Ligands ; Peptides ; Leucyl Aminopeptidase (EC 3.4.11.1) ; puromycin-insensitive leucyl-specific aminopeptidase (EC 3.4.11.1)
    Language English
    Publishing date 2007-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2016987-5
    ISSN 1529-2916 ; 1529-2908
    ISSN (online) 1529-2916
    ISSN 1529-2908
    DOI 10.1038/ni1409
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: ERAAP synergizes with MHC class I molecules to make the final cut in the antigenic peptide precursors in the endoplasmic reticulum.

    Kanaseki, Takayuki / Blanchard, Nicolas / Hammer, Gianna Elena / Gonzalez, Federico / Shastri, Nilabh

    Immunity

    2006  Volume 25, Issue 5, Page(s) 795–806

    Abstract: The major histocompatibility complex class I molecules display peptides (pMHC I) on the cell surface for immune surveillance by CD8(+) T cells. These peptides are generated by proteolysis of intracellular polypeptides by the proteasome in the cytoplasm ... ...

    Abstract The major histocompatibility complex class I molecules display peptides (pMHC I) on the cell surface for immune surveillance by CD8(+) T cells. These peptides are generated by proteolysis of intracellular polypeptides by the proteasome in the cytoplasm and then in the endoplasmic reticulum (ER) by the ER aminopeptidase associated with antigen processing (ERAAP). To define the unknown mechanism of ERAAP function in vivo, we analyzed naturally processed peptides in cells with or without appropriate MHC I and ERAAP. In the absence of MHC I, ERAAP degraded the antigenic precursors in the ER. However, MHC I molecules could bind proteolytic intermediates and were essential for generation of the final peptide by ERAAP. Thus, ERAAP synergizes with MHC I to generate the final pMHC I repertoire.
    MeSH term(s) Amino Acid Sequence ; Animals ; Antigen Presentation/physiology ; Antigens/chemistry ; Antigens/immunology ; Chromatography, High Pressure Liquid ; Endoplasmic Reticulum/immunology ; Endoplasmic Reticulum/metabolism ; HeLa Cells ; Histocompatibility Antigens Class I/immunology ; Histocompatibility Antigens Class I/metabolism ; Humans ; Immunoblotting ; Immunohistochemistry ; Leucyl Aminopeptidase/genetics ; Leucyl Aminopeptidase/immunology ; Leucyl Aminopeptidase/metabolism ; Lymphocyte Activation/immunology ; Mice ; Molecular Sequence Data ; Peptides/chemistry ; Peptides/immunology ; Polymerase Chain Reaction ; Transfection
    Chemical Substances Antigens ; Histocompatibility Antigens Class I ; Peptides ; Leucyl Aminopeptidase (EC 3.4.11.1) ; puromycin-insensitive leucyl-specific aminopeptidase (EC 3.4.11.1)
    Language English
    Publishing date 2006-11
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1217235-2
    ISSN 1097-4180 ; 1074-7613
    ISSN (online) 1097-4180
    ISSN 1074-7613
    DOI 10.1016/j.immuni.2006.09.012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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