Found 10 structures.
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1. Compound ID: 1240
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4HOBut-(1-5)-+
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b-D-GlcpNAc-(1-4)-+ |
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-3)-a-L-FucpNAm-(1-3)-a-D-GlcpNAc-(1-8)-D-gro-L-3,9dgalNon5N7NAc-ulosonic-(2- |
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Structure type: polymer chemical repeating unit
Contained glycoepitopes: IEDB_135813,IEDB_137340,IEDB_141807,IEDB_151531,SB_74,SB_85
The structure is contained in the following publication(s):
- Article ID: 381
Skurnik M, Zhang L "Molecular genetics and biochemistry of Yersinia lipopolysaccharide" -
APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica 104(12) (1996) 849-872
Studies on the molecular genetics of bacterial LPS serve at least two main purposes: (i) to help develop an understanding of the biology, biochemistry and genetics of this bacterial surface macromolecule, and (ii) to provide a basis for both vaccine development and virulence experiments. Both of these goals have been the driving force in studies of Yersinia LPS carried out during the last decade. Here we will review the progress made in the molecular genetics and biochemistry of Yersinia LPS. A deep understanding has been achieved with respect to Y. enterocolitica serotype O:3, reaching as far as a detailed analysis of the gene clusters directing the biosynthesis of the outer core oligosaccharide and of the O-ag. The O-ag gene clusters of Y. enterocolitica serotype O:8 and Y. pseudotuberculosis serotypes O:2a and O:5a have also been cloned and partially characterized LPS biosynthesis of these Yersinia species includes examples of the two major variations recognized in the biosynthesis of this macromolecule: (i) homopolymeric or O-antigen polymerase-independent biosynthesis, and (ii) heteropolymeric or O-antigen polymerase-dependent biosynthesis.
Lipopolysaccharide, genetic, gene, genetics, O-antigen, biochemistry, Yersinia, molecular genetics
NCBI PubMed ID: 9048864Publication DOI: 10.1111/j.1699-0463.1996.tb04951.xJournal NLM ID: 8803400Publisher: Copenhagen: Munksgaard
Institutions: Turku Centre for Biotechnology, University of Turku, Finland, department of Medical Microbiology, University of Turku, Turku, Finland
- Article ID: 2299
Beynon LM, Richards JC, Perry MB "The structure of the lipopolysaccharide O antigen from Yersinia ruckeri serotype O1" -
Carbohydrate Research 256 (1994) 303-317
The O antigen obtained from the lipopolysaccharide of Yersinia ruckeri serotype 01, by mild acid hydrolysis, is composed of a branched tetrasaccharide repeating unit containing 2-acetamidino-2,6-dideoxy-l-galactose (l-FucAm), 2-acetamido-2-deoxy-d-glucose (D-GlcNac), and 7-acetamido-3,5,7,9-tetradeoxy-5-(4-hydroxybutyramido)-d-glycero-l-galacto-nonulosonic acid (l-Sug). Partial hydrolysis of the O antigen with 0.1 M HClafforded a trisaccharide and a tetrasaccharide having nonulosonic acid at their reducing ends. Cleavage of the O antigen with anhydrous methanolic hydrogen fluoride afforded the methyl glycoside derivatives of a trisaccharide and a tetrasaccharide. 1H and 13C NMR analysis, including 1H-13C heteronuclear multiple bond correlation spectroscopy to locate the N-acyl substituents, together with mass spectrometric analysis of the above oligosaccharides, allowed the structure of the O-specific polysaccharide to be assigned as: [formula: see text].
NCBI PubMed ID: 7514497Publication DOI: 10.1016/0008-6215(94)84215-9Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Institute for Biological Sciences, National Research Council of Canada, Ottawa, Ontario
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2. Compound ID: 4625
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-3)-a-D-QuipNAc-(1-8)-D-gro-b-L-3,9dgalNon5NAc7NAc-ulosonic-(2-3)-a-L-FucpNAm-(1- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide
The structure is contained in the following publication(s):
- Article ID: 1778
Knirel YA, Kochetkov NK "The structure of lipopolysaccharides of gram-negative bacteria. III. The structure of O-antigens: A review" -
Biochemistry (Moscow) 59(12) (1994) 1325-1383
This review summarizes data on the composition and structure of the O-antigens, the polysaccharide chains of the outer-membrane lipopolysaccharides (LPS) of Gram-negative bacteria defining the immunospecificity of these microbial cells. Special reference is given to some structural features of the O-antigens, such as the presence of unique monosaccharides and noncarbohydrate components, masked regularity, and the occurrence in one microorganism of LPS with structurally different polysaccharide chains. Antigenic relationships between microorganisms belonging to different taxonomic groups are discussed.
structure, O-antigen, chemical composition, bacterial lipopolysaccharides, Salmonella livingstone C1
NCBI PubMed ID: 7533007Journal NLM ID: 0376536Publisher: Nauka/Interperiodica
Institutions: Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Article ID: 2402
Knirel YA, Vinogradov EV, Shashkov AS, Dmitriev BA, Kochetkov NK, Stanislavsky ES, Mashilova GM "Somatic antigens of Pseudomonas aeruginosa. The structure of the O-specific polysaccharide chain of the lipopolysaccharide from P. aeruginosa O13 (Lányi)" -
European Journal of Biochemistry 163 (1987) 627-637
The O-specific polysaccharide, obtained on mild acid degradation of lipopolysaccharide of Pseudomonas aeruginosa O13 (Lányi classification), is built up of trisaccharide repeating units involving 2-acetamidino-2,6-dideoxy-D-glucose (N-acetyl-D-quinovosamine, D-QuiNAc), 2-acetamidino-2,6-dideoxy-L-galactose (L-fucosacetamidine, L-FucAm), and a new sialic-acid-like sugar, 5,7-diacetamido-3,5,7,9-tetradeoxy-D-glycero-L-galacto-nonulosonic acid (Sug), and thus contains simultaneously both acidic and basic functions. Cleavage of the polysaccharide with hydrogen fluoride in methanol revealed the high stability of the glycosidic linkage of the ulosonic acid and afforded methyl glycosides of a disaccharide and a trisaccharide. The structures of the new ulosonic acid and acetamidino group were established by analysing the oligosaccharide fragments by 1H, 13C nuclear magnetic resonance spectrometry, as well as on the basis of their chemical conversions: alkaline hydrolysis of the acetamidino group into acetamido group, reductive deamination with lithium borohydride into the ethylamino group and acetylation with acetic anhydride in pyridine accompanied by intramolecular acylation of the acetamidino function by the ulosonic acid to form a six-membered lactam ring. Identification of the oligosaccharide fragments and comparative analysis of the 13C nuclear magnetic resonance spectra of the oligosaccharides and polysaccharide revealed the following structure of the repeating unit: →3)D-QuiNAcp(α1→3)Sugp(α2→3)L-FucAmp(α1→.
NCBI PubMed ID: 3104040Publication DOI: 10.1111/j.1432-1033.1987.tb10912.xJournal NLM ID: 0107600Publisher: Oxford, UK: Blackwell Science Ltd. on behalf of the Federation of European Biochemical Societies
Methods: 13C NMR
- Article ID: 5461
Knirel YA, Naumenko OI, Senchenkova SN, Perepelov AV "Chemical methods for selective cleavage of glycosidic linkages in structural analysis of bacterial polysaccharides" -
Russian Chemical Reviews = Uspekhi Khimii 88(4) (2019) 406-424
This review is devoted to methods for the selective cleavage of glycosidic bonds. The mechanisms of reactions underlying these methods are considered and examples of their practical application in the structural analysis of bacterial polysaccharides are given. Specific methods for the selective cleavage of polysaccharides, remaining relevant for researchers, include the Smith degradation based on destruction of monosaccharides containing vicinal diol groups, dephosphorylation of phosphate-containing polysaccharides with hydrofluoric acid and the hydrolytic cleavage of glycosyl phosphate bonds in the latter compounds. Non-specific methods, including partial acid hydrolysis, acetolysis and solvolysis with anhydrous organic (CF3SO3H, MeSO3H, CF3CO2H) and inorganic (HF) acids do not make any specific demands on the composition and structure of the polysaccharide and are sensitive to its fine structural features. The review addesses the issue of stability of glycosidic bonds in various monosaccharides to reagents used for non-specific selective cleavage.
structural analysis, Bacterial polysaccharide, selective cleavage, glycosidic bond
Publication DOI: 10.1070/RCR4856Journal NLM ID: 0404506Publisher: London: Chemical Society
Correspondence: Yu.A. Knirel
Institutions: N.D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences
Methods: partial acid hydrolysis, HF solvolysis, acid hydrolysis, mild acid hydrolysis, alkaline degradation, b-elimination, Smith degradation, deamination, de-O-acetylation, HF treatment, reduction with NaBD4, triflic acid solvolysis, acetolysis, Li/ethylenediamine degradation, hydrazinolysis, reduction with NaBH4, mild acid degradation, trifluoroacetic acid solvolysis, partial solvolysis with trifluoroacetic acid, de-N-acetylation with hydrazine, part acid hydrolysis, HF solvolysis; published polymerization frame was shifted for conformity with other records.
- Article ID: 6301
Qin CJ, Ding MR, Tian GZ, Zou XP, Fu JJ, Hu J, Yin J "Chemical approaches towards installation of rare functional groups in bacterial surface glycans" -
Chinese Journal of Natural Medicines = Zhongguo Tianran Yaowu 20(6) (2022) 401-420
Bacterial surface glycans perform a diverse and important set of biological roles, and have been widely used in the treatment of bacterial infectious diseases. The majority of bacterial surface glycans are decorated with diverse rare functional groups, including amido, acetamidino, carboxamido and pyruvate groups. These functional groups are thought to be important constituents for the biological activities of glycans. Chemical synthesis of glycans bearing these functional groups or their variants is essential for the investigation of structure-activity relationships by a medicinal chemistry approach. To date, a broad choice of synthetic methods is available for targeting the different rare functional groups in bacterial surface glycans. This article reviews the structures of naturally occurring rare functional groups in bacterial surface glycans, and the chemical methods used for installation of these groups.
chemical synthesis, acetamidino group, amido group, bacterial surface glycan, carboxamido group, pyruvyl ketal
NCBI PubMed ID: 35750381Publication DOI: 10.1016/S1875-5364(22)60177-8Journal NLM ID: 101504416Publisher: Beijing: Science Press; Elsevier
Correspondence: J. Yin
Institutions: Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China, Wuxi School of Medicine, Jiangnan University, Wuxi, China
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3. Compound ID: 4678
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3HOBut-(1-5)-+
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-3)-a-D-GlcpNAc-(1-8)-D-gro-b-L-3,9dgalNon5N7NAc-ulosonic-(2-3)-a-L-FucpNAm-(1- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_137340,IEDB_141807,IEDB_151531
The structure is contained in the following publication(s):
- Article ID: 1778
Knirel YA, Kochetkov NK "The structure of lipopolysaccharides of gram-negative bacteria. III. The structure of O-antigens: A review" -
Biochemistry (Moscow) 59(12) (1994) 1325-1383
This review summarizes data on the composition and structure of the O-antigens, the polysaccharide chains of the outer-membrane lipopolysaccharides (LPS) of Gram-negative bacteria defining the immunospecificity of these microbial cells. Special reference is given to some structural features of the O-antigens, such as the presence of unique monosaccharides and noncarbohydrate components, masked regularity, and the occurrence in one microorganism of LPS with structurally different polysaccharide chains. Antigenic relationships between microorganisms belonging to different taxonomic groups are discussed.
structure, O-antigen, chemical composition, bacterial lipopolysaccharides, Salmonella livingstone C1
NCBI PubMed ID: 7533007Journal NLM ID: 0376536Publisher: Nauka/Interperiodica
Institutions: Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Moscow, Russia
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4. Compound ID: 4860
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D-gro-b-L-3,9dgalNon5NAc7NAc-ulosonic-(2-3)-a-L-FucpNAm-(1-1)-Me |
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Structure type: oligomer
Compound class: O-polysaccharide, O-antigen
The structure is contained in the following publication(s):
- Article ID: 1843
Elkin YN, Knirel YA, Vinogradov EV, Paramonov NA, Troshkov ML, Aminev "Fast-atom-bombardment mass-spectra of aminooligosaccharides" -
Bioorganicheskaya Khimia = Bioorganic Chemistry [Russian] 12 (1986) 1658-1661
Journal NLM ID: 7804941Publisher: Moskva: Nauka
Institutions: N.D. Zelinsky Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow, Russia
Methods: FAB-MS
- Article ID: 5461
Knirel YA, Naumenko OI, Senchenkova SN, Perepelov AV "Chemical methods for selective cleavage of glycosidic linkages in structural analysis of bacterial polysaccharides" -
Russian Chemical Reviews = Uspekhi Khimii 88(4) (2019) 406-424
This review is devoted to methods for the selective cleavage of glycosidic bonds. The mechanisms of reactions underlying these methods are considered and examples of their practical application in the structural analysis of bacterial polysaccharides are given. Specific methods for the selective cleavage of polysaccharides, remaining relevant for researchers, include the Smith degradation based on destruction of monosaccharides containing vicinal diol groups, dephosphorylation of phosphate-containing polysaccharides with hydrofluoric acid and the hydrolytic cleavage of glycosyl phosphate bonds in the latter compounds. Non-specific methods, including partial acid hydrolysis, acetolysis and solvolysis with anhydrous organic (CF3SO3H, MeSO3H, CF3CO2H) and inorganic (HF) acids do not make any specific demands on the composition and structure of the polysaccharide and are sensitive to its fine structural features. The review addesses the issue of stability of glycosidic bonds in various monosaccharides to reagents used for non-specific selective cleavage.
structural analysis, Bacterial polysaccharide, selective cleavage, glycosidic bond
Publication DOI: 10.1070/RCR4856Journal NLM ID: 0404506Publisher: London: Chemical Society
Correspondence: Yu.A. Knirel
Institutions: N.D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences
Methods: partial acid hydrolysis, HF solvolysis, acid hydrolysis, mild acid hydrolysis, alkaline degradation, b-elimination, Smith degradation, deamination, de-O-acetylation, HF treatment, reduction with NaBD4, triflic acid solvolysis, acetolysis, Li/ethylenediamine degradation, hydrazinolysis, reduction with NaBH4, mild acid degradation, trifluoroacetic acid solvolysis, partial solvolysis with trifluoroacetic acid, de-N-acetylation with hydrazine, part acid hydrolysis, HF solvolysis; published polymerization frame was shifted for conformity with other records.
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5. Compound ID: 4861
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a-D-QuipNAc-(1-8)-D-gro-b-L-3,9dgalNon5NAc7NAc-ulosonic-(2-3)-a-L-FucpNAm-(1-1)-Me |
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Structure type: oligomer
Compound class: O-polysaccharide, O-antigen
The structure is contained in the following publication(s):
- Article ID: 1843
Elkin YN, Knirel YA, Vinogradov EV, Paramonov NA, Troshkov ML, Aminev "Fast-atom-bombardment mass-spectra of aminooligosaccharides" -
Bioorganicheskaya Khimia = Bioorganic Chemistry [Russian] 12 (1986) 1658-1661
Journal NLM ID: 7804941Publisher: Moskva: Nauka
Institutions: N.D. Zelinsky Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow, Russia
Methods: FAB-MS
- Article ID: 5461
Knirel YA, Naumenko OI, Senchenkova SN, Perepelov AV "Chemical methods for selective cleavage of glycosidic linkages in structural analysis of bacterial polysaccharides" -
Russian Chemical Reviews = Uspekhi Khimii 88(4) (2019) 406-424
This review is devoted to methods for the selective cleavage of glycosidic bonds. The mechanisms of reactions underlying these methods are considered and examples of their practical application in the structural analysis of bacterial polysaccharides are given. Specific methods for the selective cleavage of polysaccharides, remaining relevant for researchers, include the Smith degradation based on destruction of monosaccharides containing vicinal diol groups, dephosphorylation of phosphate-containing polysaccharides with hydrofluoric acid and the hydrolytic cleavage of glycosyl phosphate bonds in the latter compounds. Non-specific methods, including partial acid hydrolysis, acetolysis and solvolysis with anhydrous organic (CF3SO3H, MeSO3H, CF3CO2H) and inorganic (HF) acids do not make any specific demands on the composition and structure of the polysaccharide and are sensitive to its fine structural features. The review addesses the issue of stability of glycosidic bonds in various monosaccharides to reagents used for non-specific selective cleavage.
structural analysis, Bacterial polysaccharide, selective cleavage, glycosidic bond
Publication DOI: 10.1070/RCR4856Journal NLM ID: 0404506Publisher: London: Chemical Society
Correspondence: Yu.A. Knirel
Institutions: N.D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences
Methods: partial acid hydrolysis, HF solvolysis, acid hydrolysis, mild acid hydrolysis, alkaline degradation, b-elimination, Smith degradation, deamination, de-O-acetylation, HF treatment, reduction with NaBD4, triflic acid solvolysis, acetolysis, Li/ethylenediamine degradation, hydrazinolysis, reduction with NaBH4, mild acid degradation, trifluoroacetic acid solvolysis, partial solvolysis with trifluoroacetic acid, de-N-acetylation with hydrazine, part acid hydrolysis, HF solvolysis; published polymerization frame was shifted for conformity with other records.
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6. Compound ID: 5467
|
4HOBut-(1-5)-+
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b-D-GlcpNAc-(1-4)-a-D-GlcpNAc-(1-8)-D-gro-L-3,9dgalNon5N7NAc-ulosonic-(2-3)-a-L-FucpNAm-(1-1)-Me |
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Structure type: oligomer
Contained glycoepitopes: IEDB_135813,IEDB_137340,IEDB_141807,IEDB_151531,SB_74,SB_85
The structure is contained in the following publication(s):
- Article ID: 2299
Beynon LM, Richards JC, Perry MB "The structure of the lipopolysaccharide O antigen from Yersinia ruckeri serotype O1" -
Carbohydrate Research 256 (1994) 303-317
The O antigen obtained from the lipopolysaccharide of Yersinia ruckeri serotype 01, by mild acid hydrolysis, is composed of a branched tetrasaccharide repeating unit containing 2-acetamidino-2,6-dideoxy-l-galactose (l-FucAm), 2-acetamido-2-deoxy-d-glucose (D-GlcNac), and 7-acetamido-3,5,7,9-tetradeoxy-5-(4-hydroxybutyramido)-d-glycero-l-galacto-nonulosonic acid (l-Sug). Partial hydrolysis of the O antigen with 0.1 M HClafforded a trisaccharide and a tetrasaccharide having nonulosonic acid at their reducing ends. Cleavage of the O antigen with anhydrous methanolic hydrogen fluoride afforded the methyl glycoside derivatives of a trisaccharide and a tetrasaccharide. 1H and 13C NMR analysis, including 1H-13C heteronuclear multiple bond correlation spectroscopy to locate the N-acyl substituents, together with mass spectrometric analysis of the above oligosaccharides, allowed the structure of the O-specific polysaccharide to be assigned as: [formula: see text].
NCBI PubMed ID: 7514497Publication DOI: 10.1016/0008-6215(94)84215-9Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Institute for Biological Sciences, National Research Council of Canada, Ottawa, Ontario
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7. Compound ID: 5469
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4HOBut-(1-5)-+
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a-D-GlcpNAc-(1-8)-D-gro-L-3,9dgalNon5N7NAc-ulosonic-(2-3)-a-L-FucpNAm-(1-1)-Me |
Show graphically |
Structure type: oligomer
Contained glycoepitopes: IEDB_137340,IEDB_141807,IEDB_151531
The structure is contained in the following publication(s):
- Article ID: 2299
Beynon LM, Richards JC, Perry MB "The structure of the lipopolysaccharide O antigen from Yersinia ruckeri serotype O1" -
Carbohydrate Research 256 (1994) 303-317
The O antigen obtained from the lipopolysaccharide of Yersinia ruckeri serotype 01, by mild acid hydrolysis, is composed of a branched tetrasaccharide repeating unit containing 2-acetamidino-2,6-dideoxy-l-galactose (l-FucAm), 2-acetamido-2-deoxy-d-glucose (D-GlcNac), and 7-acetamido-3,5,7,9-tetradeoxy-5-(4-hydroxybutyramido)-d-glycero-l-galacto-nonulosonic acid (l-Sug). Partial hydrolysis of the O antigen with 0.1 M HClafforded a trisaccharide and a tetrasaccharide having nonulosonic acid at their reducing ends. Cleavage of the O antigen with anhydrous methanolic hydrogen fluoride afforded the methyl glycoside derivatives of a trisaccharide and a tetrasaccharide. 1H and 13C NMR analysis, including 1H-13C heteronuclear multiple bond correlation spectroscopy to locate the N-acyl substituents, together with mass spectrometric analysis of the above oligosaccharides, allowed the structure of the O-specific polysaccharide to be assigned as: [formula: see text].
NCBI PubMed ID: 7514497Publication DOI: 10.1016/0008-6215(94)84215-9Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Institute for Biological Sciences, National Research Council of Canada, Ottawa, Ontario
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8. Compound ID: 6248
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-3)-a-D-QuipNAc-(1-3)-3HOBut-(1-7)-D-gro-L-3,9dgalNonp5NAc7N-ulosonic-(2-4)-a-L-FucpNAc-(1- |
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Structure type: polymer chemical repeating unit
The structure is contained in the following publication(s):
- Article ID: 2812
Knirel YA "New sialic acid-like sugars: components of bacterial lipopolysaccharides" -
Proceedings of Sialic acids 1998: Japanese-German Symposium on Sialic Acids (1st : 1988 : Berlin) (1988) 160-161
Book NLM ID: 9012728Publisher: Kiel: Kieler Verlag Wissenschaft + Bildung
Editors: Schauer R, Yamakawa T
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9. Compound ID: 6252
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3HOBut-(1-7)-+
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-3)-a-D-GlcpNAc-(1-8)-D-gro-b-L-3,9dgalNonp5NAc7N4Ac-ulosonic-(2-6)-a-L-Galp-(1-2)-a-D-Glcp-(1-2)-b-D-Galf-(1- |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
Contained glycoepitopes: IEDB_136095,IEDB_137340,IEDB_137472,IEDB_141807,IEDB_142488,IEDB_144998,IEDB_146664,IEDB_151531,IEDB_190606,IEDB_983931,SB_192
The structure is contained in the following publication(s):
- Article ID: 2812
Knirel YA "New sialic acid-like sugars: components of bacterial lipopolysaccharides" -
Proceedings of Sialic acids 1998: Japanese-German Symposium on Sialic Acids (1st : 1988 : Berlin) (1988) 160-161
Book NLM ID: 9012728Publisher: Kiel: Kieler Verlag Wissenschaft + Bildung
Editors: Schauer R, Yamakawa T
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10. Compound ID: 6746
|
-3)-a-D-QuipNAc-(1-8)-D-gro-b-L-3,9dgalNonp5NAc7NAc-ulosonic-(2-3)-a-L-FucpNAm-(1-
DL3,9dgalNon5N7N-ulosonic = 5,7-diamino-3,5,7,9-tetradeoxy-D-glycero-L-galacto-nonulosonic acid;
Am = acetimidoyl |
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Structure type: polymer chemical repeating unit
Compound class: O-polysaccharide, O-antigen
The structure is contained in the following publication(s):
- Article ID: 2812
Knirel YA "New sialic acid-like sugars: components of bacterial lipopolysaccharides" -
Proceedings of Sialic acids 1998: Japanese-German Symposium on Sialic Acids (1st : 1988 : Berlin) (1988) 160-161
Book NLM ID: 9012728Publisher: Kiel: Kieler Verlag Wissenschaft + Bildung
Editors: Schauer R, Yamakawa T
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Total list of structure IDs on all result pages of the current query:
Total list of corresponding CSDB IDs (permanent record IDs):
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