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1nnc

INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) COMPLEXED WITH 4-GUANIDINO-NEU5AC2EN INHIBITOR

Method: X-RAY DIFFRACTION Dmax: 77.7 Å Quality: GOOD
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1. Protein Identity and Related Structures Protein Identity & Related Structures

NEURAMINIDASE N9

OrganismNot specified

UniProt P03472

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Homooligomer Protein × 4 其他Polymer 4 PDB declaration: tetrameric（4） Consistent with protein copy count Chain A； UniProt 83–470 Not recorded ;alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose ; × 4 MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 ZMR ZANAMIVIR × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 1.80 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB Difference from Current Entry 1NNC Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Method and Experimental Conditions Structure Quality
1A14 COMPLEX BETWEEN NC10 ANTI-INFLUENZA VIRUS NEURAMINIDASE SINGLE CHAIN ANTIBODY WITH A 5 RESIDUE LINKER AND INFLUENZA VIRUS NEURAMINIDASE Deposited 1997-12-21 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric
Chain N 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.6；NC10 SCFV(5) AND N9 NA WERE MIXED TOGETHER (SCFV(5) IN FOUR-FOLD MOLAR EXCESS) WITH AND EQUAL VOLUME OF POTASSIUM PHOSPHATE BUFFER 1.7M PH6.6. THE DROP WAS EQUILIBRATED BY VAPOR DIFFUSION AGAINST PHOSPHATE BUFFER 1.3M PH6.8., vapor diffusion
Resolution 2.50 Å R-free 0.270
1BJI THE X-RAY STRUCTURE OF A COMPLEX OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE COMPLEXED WITH THE GLAXO 6-CARBOXAMIDE SIALIC ACID ANALOGUE GR217029 Deposited 1997-12-03 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 DPC 5-ACETYLAMINO-4-AMINO-6-(PHENETHYL-PROPYL-CARBAMOYL)-5,6-DIHYDRO-4H-PYRAN-2-CARBOXYLIC ACID × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；1.9M PHOSPHATE(PH 5.9) THE GLAXO 6-CARBOXAMIDE COMPOUND GR217029 WAS SOAKED IN TERN N9 NEURAMININDASE CRYSTALS AT 5 MM FOR 24HR. THIS EXPERIMENT WAS CARRIED OUT TO DETERMINE THE BINDING MODE OF THE 6-CARBOXAMIDE HYDROPHOBIC GROUP. A NEW HYDROPHOBIC POCKET WAS DISCOVERED EARLIER WITH A METHYL, ETHYL GROUP ATTACHED TO THE AMIDE OF TH3E SIX-CARBOXAMIDE. THIS COMPOUND HAS A MUCH LARGER HYDROPHOBIC GROUP ATTACHED., pH 7.0
Resolution 2.00 Å
1INY A SIALIC ACID DERIVED PHOSPHONATE ANALOG INHIBITS DIFFERENT STRAINS OF INFLUENZA VIRUS NEURAMINIDASE WITH DIFFERENT EFFICIENCIES Deposited 1994-09-26 Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 EQP (1R)-4-acetamido-1,5-anhydro-2,4-dideoxy-1-phosphono-D-glycero-D-galacto-octitol × 4 X-RAY DIFFRACTION
X-ray crystallization conditions NATIVE CRYSTALS SOAKED IN 10MM EPANA SOLUTION, PH 7.2.
Resolution 2.40 Å
1L7F Crystal structure of influenza virus neuraminidase in complex with BCX-1812 Deposited 2002-03-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：integral membrane protein, membrane stalk cleaved by pronase releasing fully active residues 82-468
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 BCZ 3-(1-ACETYLAMINO-2-ETHYL-BUTYL)-4-GUANIDINO-2-HYDROXY-CYCLOPENTANECARBOXYLIC ACID × 4 GOL GLYCEROL × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.9；293 K；phosphate, pH 5.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.80 Å R-free 0.187
1L7G Crystal structure of E119G mutant influenza virus neuraminidase in complex with BCX-1812 Deposited 2002-03-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：integral membrane protein, membrane stalk cleaved by pronase releasing fully active residues 82-468
Mutation：E119G NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 BCZ 3-(1-ACETYLAMINO-2-ETHYL-BUTYL)-4-GUANIDINO-2-HYDROXY-CYCLOPENTANECARBOXYLIC ACID × 4 GOL GLYCEROL × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.9；293 K；phosphate, pH 5.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.85 Å R-free 0.168
1L7H Crystal structure of R292K mutant influenza virus neuraminidase in complex with BCX-1812 Deposited 2002-03-15 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：integral membrane protein, membrane stalk cleaved by pronase releasing fully active residues 82-468
Mutation：R292K NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 12 BCZ 3-(1-ACETYLAMINO-2-ETHYL-BUTYL)-4-GUANIDINO-2-HYDROXY-CYCLOPENTANECARBOXYLIC ACID × 4 GOL GLYCEROL × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.9；293 K；phosphate, pH 5.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.85 Å R-free 0.177
1MWE THE X-RAY STRUCTURE OF A COMPLEX OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE COMPLEXED WITH SIALIC ACID AT 4 DEGREES C REVEALING A SECOND SIALIC ACID BINDING SITE Deposited 1997-08-27 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 12 SIA N-acetyl-alpha-neuraminic acid × 8 CA CALCIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 1.70 Å
1NCA REFINED CRYSTAL STRUCTURE OF THE INFLUENZA VIRUS N9 NEURAMINIDASE-NC41 FAB COMPLEX Deposited 1992-01-21 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric
Chain N 82–470（389 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1NCA REFINED CRYSTAL STRUCTURE OF THE INFLUENZA VIRUS N9 NEURAMINIDASE-NC41 FAB COMPLEX Deposited 1992-01-21 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 2 Other combination Heteromer；Protein × 20 PDB declaration: eicosameric
Chain N 82–470（389 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 16 CA CALCIUM ION × 8 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1NCB CRYSTAL STRUCTURES OF TWO MUTANT NEURAMINIDASE-ANTIBODY COMPLEXES WITH AMINO ACID SUBSTITUTIONS IN THE INTERFACE Deposited 1992-01-21 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric
Chain N 82–470（389 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1NCB CRYSTAL STRUCTURES OF TWO MUTANT NEURAMINIDASE-ANTIBODY COMPLEXES WITH AMINO ACID SUBSTITUTIONS IN THE INTERFACE Deposited 1992-01-21 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 2 Other combination Heteromer；Protein × 20 PDB declaration: eicosameric
Chain N 82–470（389 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 8 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1NCC CRYSTAL STRUCTURES OF TWO MUTANT NEURAMINIDASE-ANTIBODY COMPLEXES WITH AMINO ACID SUBSTITUTIONS IN THE INTERFACE Deposited 1992-01-21 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric
Chain N 82–470（389 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1NMC COMPLEX BETWEEN NC10 ANTI-INFLUENZA VIRUS NEURAMINIDASE SINGLE CHAIN ANTIBODY WITH A 15 RESIDUE LINKER AND INFLUENZA VIRUS NEURAMINIDASE Deposited 1997-12-21 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric
Chain N 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.6；NC10 SCFV(15) AND N9 NA WERE MIXED TOGETHER (SCFV(15) IN SLIGHT MOLAR EXCESS) WITH AND EQUAL VOLUME OF POTASSIUM PHOSPHATE BUFFER 1.7M PH6.6. THE DROP WAS EQUILIBRATED BY VAPOUR DIFFUSION AGAINST PHOSPHATE BUFFER 1.3M PH6.8.
Resolution 2.50 Å R-free 0.260
1NMC COMPLEX BETWEEN NC10 ANTI-INFLUENZA VIRUS NEURAMINIDASE SINGLE CHAIN ANTIBODY WITH A 15 RESIDUE LINKER AND INFLUENZA VIRUS NEURAMINIDASE Deposited 1997-12-21 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Other combination Heteromer；Protein × 12 PDB declaration: dodecameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.6；NC10 SCFV(15) AND N9 NA WERE MIXED TOGETHER (SCFV(15) IN SLIGHT MOLAR EXCESS) WITH AND EQUAL VOLUME OF POTASSIUM PHOSPHATE BUFFER 1.7M PH6.6. THE DROP WAS EQUILIBRATED BY VAPOUR DIFFUSION AGAINST PHOSPHATE BUFFER 1.3M PH6.8.
Resolution 2.50 Å R-free 0.260
1NNA THREE-DIMENSIONAL STRUCTURE OF INFLUENZA A N9 NEURAMINIDASE AND ITS COMPLEX WITH THE INHIBITOR 2-DEOXY 2,3-DEHYDRO-N-ACETYL NEURAMINIC ACID Deposited 1993-03-08 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 84–470（387 aa）
Not recorded CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1NNB THREE-DIMENSIONAL STRUCTURE OF INFLUENZA A N9 NEURAMINIDASE AND ITS COMPLEX WITH THE INHIBITOR 2-DEOXY 2,3-DEHYDRO-N-ACETYL NEURAMINIC ACID Deposited 1993-03-08 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 84–470（387 aa）
Not recorded CA CALCIUM ION × 4 DAN 2-DEOXY-2,3-DEHYDRO-N-ACETYL-NEURAMINIC ACID × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.80 Å
1XOE N9 Tern influenza neuraminidase complexed with (2R,4R,5R)-5-(1-Acetylamino-3-methyl-butyl-pyrrolidine-2, 4-dicarobyxylic acid 4-methyl esterdase complexed with Deposited 2004-10-06 Different construct Different oligomeric state Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric
Chain A 84–470（387 aa） Fragment：N9 tern Influenza Neuraminidase
Not recorded MAN alpha-D-mannopyranose × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 ABX 5-[1-(ACETYLAMINO)-3-METHYLBUTYL]-4-(METHOXYCARBONYL)PROLINE × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å R-free 0.315
1XOE N9 Tern influenza neuraminidase complexed with (2R,4R,5R)-5-(1-Acetylamino-3-methyl-butyl-pyrrolidine-2, 4-dicarobyxylic acid 4-methyl esterdase complexed with Deposited 2004-10-06 Different construct Different ligand/ion Different structure-quality metrics Assembly 2 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 84–470（387 aa） Fragment：N9 tern Influenza Neuraminidase
Not recorded MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 ABX 5-[1-(ACETYLAMINO)-3-METHYLBUTYL]-4-(METHOXYCARBONYL)PROLINE × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å R-free 0.315
1XOG N9 Tern Influenza neuraminidase complexed with a 2,5-Disubstituted tetrahydrofuran-5-carboxylic acid Deposited 2004-10-06 Different construct Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 84–470（387 aa） Fragment：N9 Tern neuraminidas
Not recorded MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 ABW 5-[1-(ACETYLAMINO)-3-METHYLBUTYL]-2,5-ANHYDRO-3,4-DIDEOXY-4-(METHOXYCARBONYL)PENTONIC ACID × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.80 Å R-free 0.297
2C4A Structure of Neuraminidase Subtype N9 Complexed with 30 MM Sialic Acid (NANA, NEU5AC), Crystal Soaked for 3 Hours at 291 K. Deposited 2005-10-17 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 83-470
Not recorded SIA N-acetyl-alpha-neuraminic acid × 8 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.8；PROTEIN WAS CRYSTALLISED FROM 1.9M POTASSIUM PHOSPHATE PH 6.8, THEN SOAKED FOR 3 HOURS IN 30 MM NEU5AC
Resolution 2.15 Å R-free 0.205
2C4L Structure of Neuraminidase Subtype N9 Complexed with 30 MM Sialic Acid (NANA, NEU5AC), Crystal Soaked for 24 Hours at 291 K and Finally Backsoaked for 30 Min in a Cryoprotectant Solution which did not contain NEU5AC Deposited 2005-10-20 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 83-470
Not recorded SIA N-acetyl-alpha-neuraminic acid × 8 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 20 BMA beta-D-mannopyranose × 20 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.8；PROTEIN WAS CRYSTALLISED FROM 1.9M POTASSIUM PHOSPHATE PH 6.8, THEN SOAKED FOR 24 HOURS IN 30 MM NEU5AC AND FINALLY BACKSOAKED FOR 30 MIN IN A CRYOPROTECTANT SOLUTION WHICH DID NOT CONTAIN NEU5AC
Resolution 2.15 Å R-free 0.196
2QWA THE X-RAY STRUCTURE OF A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 1.70 Å
2QWB THE X-RAY STRUCTURE OF A COMPLEX OF SIALIC ACID AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 SIA N-acetyl-alpha-neuraminic acid × 8 CA CALCIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 2.00 Å
2QWC THE X-RAY STRUCTURE OF A COMPLEX OF NEU5AC2EN AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 DAN 2-DEOXY-2,3-DEHYDRO-N-ACETYL-NEURAMINIC ACID × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 1.60 Å
2QWD THE X-RAY STRUCTURE OF A COMPLEX OF 4-AMINO-NEU5AC2EN AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 4AM 4-AMINO-2-DEOXY-2,3-DEHYDRO-N-ACETYL-NEURAMINIC ACID × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 2.00 Å
2QWE THE X-RAY STRUCTURE OF A COMPLEX OF 4-GUANIDINO-NEU5AC2EN AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 ZMR ZANAMIVIR × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 2.00 Å
2QWF THE X-RAY STRUCTURE OF A COMPLEX OF N-ACETYL-4-GUANIDINO-6-METHYL(PROPYL)CARBOXAMIDE-4,5-DIHYDRO-2H-PYRAN-2-CARBOXYLIC ACID AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 G20 5-N-acetyl-4-guanidino-6-methyl(propyl) carboxamide-4,5-dihydro-2H-pyran-2-carboxylic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 1.90 Å
2QWG THE X-RAY STRUCTURE OF A COMPLEX OF 5-N-ACETYL-4-AMINO-6-DIETHYLCARBOXAMIDE-4,5-DIHYDRO-2H-PYRAN-2-CARBOXYLIC ACID AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 G28 5-N-acetyl-4-amino-6-diethyl carboxamide-4,5-dihydro-2H-pyran-2-carboxylic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 1.80 Å
2QWH THE X-RAY STRUCTURE OF A COMPLEX OF 5-N-ACETYL-5-AMINO-3-(1-ETHYLPROPOXY)-1-CYCLOHEXENE-1-CARBOXYLIC ACID (GS4071) AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Mutation：R292K (N2-TOKYO/67 NUMBERING) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 G39 (3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid × 4 CA CALCIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 1.80 Å
2QWI THE X-RAY STRUCTURE OF A COMPLEX OF N-ACETYL-4-GUANIDINO-6-METHYL(PROPYL)CARBOXAMIDE-4,5-DIHYDRO-2H-PYRAN-2-CARBOXYLIC ACID AND WILDTYPE TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded MAN alpha-D-mannopyranose × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 G20 5-N-acetyl-4-guanidino-6-methyl(propyl) carboxamide-4,5-dihydro-2H-pyran-2-carboxylic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 2.00 Å
2QWJ THE X-RAY STRUCTURE OF A COMPLEX OF 5-N-ACETYL-4-AMINO-6-DIETHYLCARBOXAMIDE-4,5-DIHYDRO-2H-PYRAN-2-CARBOXYLIC ACID AND A DRUG RESISTANT VARIANT R292K OF TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 G28 5-N-acetyl-4-amino-6-diethyl carboxamide-4,5-dihydro-2H-pyran-2-carboxylic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 2.00 Å
2QWK THE X-RAY STRUCTURE OF A COMPLEX OF 5-N-ACETYL-5-AMINO-3-(1-ETHYLPROPOXY)-1-CYCLOHEXENE-1-CARBOXYLIC ACID (GS4071) AND WILDTYPE TERN N9 INFLUENZA VIRUS NEURAMINIDASE Deposited 1998-04-07 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：RESIDUES 82 - 468
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 G39 (3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid × 4 CA CALCIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.9；1.9M PHOSPHATE (PH 5.9)
Resolution 1.80 Å
3NN9 REFINED ATOMIC STRUCTURES OF N9 SUBTYPE INFLUENZA VIRUS NEURAMINIDASE AND ESCAPE MUTANTS Deposited 1991-03-28 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.30 Å
3W09 Influenza virus neuraminidase subtype N9 (TERN) complexed with 2,3-dif guanidino-neu5ac2en inhibitor Deposited 2012-10-25 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 GOL GLYCEROL × 28 ZGE 5-acetamido-2,6-anhydro-4-carbamimidamido-3,4,5-trideoxy-3-fluoro-D-glycero-D-galacto-non-2-enonic acid × 4 CA CALCIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.9；298 K；1.9M ammonium phosphate, pH 5.9, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.00 Å R-free 0.189
4DGR Influenza Subtype 9 Neuraminidase Benzoic Acid Inhibitor Complex Deposited 2012-01-26 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 82–470（389 aa） Fragment：neuraminidase
Not recorded BGC beta-D-glucopyranose × 12 GLC alpha-D-glucopyranose × 4 3LV 4-[2,2-bis(hydroxymethyl)-5-oxopyrrolidin-1-yl]-3-[(dipropylamino)methyl]benzoic acid × 4 PO4 PHOSPHATE ION × 4 CA CALCIUM ION × 8 K POTASSIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.9；298 K；1.9 M phosphate buffer, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.55 Å R-free 0.152
4NN9 REFINED ATOMIC STRUCTURES OF N9 SUBTYPE INFLUENZA VIRUS NEURAMINIDASE AND ESCAPE MUTANTS Deposited 1991-03-28 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.30 Å
4WEG influenza virus neuraminidase N9 in complex 2,3-difluorosialic acid Deposited 2014-09-10 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：UNP residues 83-470
Not recorded SFJ (2R,3R,4R,5R,6R)-5-acetamido-2,3-difluoro-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]tetrahydro-2H-pyran-2-carboxylic acid × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 DF4 (3R,4R,5R,6R)-5-(acetylamino)-3-fluoro-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]-3,4,5,6-tetrahydropyranium-2-carboxylate × 4 FSI 5-acetamido-3,5-dideoxy-3-fluoro-D-erythro-alpha-L-manno-non-2-ulopyranosonic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.7；293 K；1.7M potassium phosphate
Resolution 2.10 Å R-free 0.201
5NN9 REFINED ATOMIC STRUCTURES OF N9 SUBTYPE INFLUENZA VIRUS NEURAMINIDASE AND ESCAPE MUTANTS Deposited 1991-03-28 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.30 Å
5W26 INFLUENZA VIRUS NEURAMINIDASE N9 IN COMPLEX WITH 4-DEOXYGENATED 2,3-DIFLUORO-N-ACETYLNEURAMINIC ACID Deposited 2017-06-05 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：UNP RESIDUES 82-469
Not recorded 9SG (2R,3R,5R,6R)-5-acetamido-2,3-bis(fluoranyl)-6-[(1R,2R)-1,2,3-tris(oxidanyl)propyl]oxane-2-carboxylic acid × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 9WM (2~{R},3~{R},5~{R})-3-acetamido-5-fluoranyl-2-[(1~{R},2~{R})-1,2,3-tris(oxidanyl)propyl]-2,3,4,5-tetrahydropyran-1-ium-6-carboxylic acid × 4 9VP 5-acetamido-2,6-anhydro-3,4,5-trideoxy-3-fluoro-D-erythro-L-gluco-nononic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.7；298 K；1.7M POTASSIUM PHOSPHATE
Resolution 1.90 Å R-free 0.177
5W2U INFLUENZA VIRUS NEURAMINIDASE N9 IN COMPLEX WITH 7-DEOXYGENATED 2,3-DIFLUORO-N-ACETYLNEURAMINIC ACID Deposited 2017-06-06 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：UNP RESIDUES 82-469
Not recorded 9SM (2R,3R,4R,5R,6S)-5-acetamido-6-[(2S)-2,3-bis(oxidanyl)propyl]-2,3-bis(fluoranyl)-4-oxidanyl-oxane-2-carboxylic acid × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 9S4 (2~{S},3~{R},4~{R},5~{R})-3-acetamido-2-[(2~{S})-2,3-bis(oxidanyl)propyl]-5-fluoranyl-4-oxidanyl-2,3,4,5-tetrahydropyran-1-ium-6-carboxylic acid × 4 9SJ 5-acetamido-2,6-anhydro-3,5,7-trideoxy-3-fluoro-D-threo-L-galacto-nononic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.7；289 K；1.7M POTASSIUM PHOSPHATE
Resolution 2.00 Å R-free 0.187
5W2W INFLUENZA VIRUS NEURAMINIDASE N9 IN COMPLEX WITH 8-DEOXYGENATED 2,3-DIFLUORO-N-ACETYLNEURAMINIC ACID Deposited 2017-06-07 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：UNP RESIDUES 82-469
Not recorded 9SP (2R,3R,4R,5R,6R)-5-acetamido-6-[(1R)-1,3-bis(oxidanyl)propyl]-2,3-bis(fluoranyl)-4-oxidanyl-oxane-2-carboxylic acid × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 9SD (2~{R},3~{R},4~{R},5~{R})-3-acetamido-2-[(1~{R})-1,3-bis(oxidanyl)propyl]-5-fluoranyl-4-oxidanyl-2,3,4,5-tetrahydropyran-1-ium-6-carboxylic acid × 4 9S7 5-acetamido-2,6-anhydro-3,5,8-trideoxy-3-fluoro-D-threo-L-galacto-nononic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.7；298 K；1.7M POTASSIUM PHOSPHATE
Resolution 1.85 Å R-free 0.171
5W2Y INFLUENZA VIRUS NEURAMINIDASE N9 IN COMPLEX WITH 9-DEOXYGENATED 2,3-DIFLUORO-N-ACETYLNEURAMINIC ACID Deposited 2017-06-07 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa） Fragment：UNP RESIDUES 82-469
Not recorded 9T7 (2R,3R,4R,5R,6R)-5-acetamido-6-[(1R,2R)-1,2-bis(oxidanyl)propyl]-2,3-bis(fluoranyl)-4-oxidanyl-oxane-2-carboxylic acid × 4 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 4 9TM (2~{R},3~{R},4~{R},5~{R})-3-acetamido-2-[(1~{R},2~{R})-1,2-bis(oxidanyl)propyl]-5-fluoranyl-4-oxidanyl-2,3,4,5-tetrahydropyran-1-ium-6-carboxylic acid × 4 9T1 5-acetamido-2,6-anhydro-3,5,9-trideoxy-3-fluoro-D-erythro-L-gluco-non-4-ulosonic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.7；298 K；1.7M POTASSIUM PHOSPHATE
Resolution 2.39 Å R-free 0.198
6CRD INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) with tetrabrachion (TB) domain stalk Deposited 2018-03-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Insufficient information Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Chain B 83–470（388 aa）
Chain E 83–470（388 aa）
Chain H 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；100 mM HEPES buffer at pH7.0 with 10% PEG6000
Resolution 2.57 Å R-free 0.306
6CRD INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) with tetrabrachion (TB) domain stalk Deposited 2018-03-16 Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 2 Insufficient information Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain C 83–470（388 aa）
Chain D 83–470（388 aa）
Chain F 83–470（388 aa）
Chain G 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；100 mM HEPES buffer at pH7.0 with 10% PEG6000
Resolution 2.57 Å R-free 0.306
6D3B INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) APO FORM Deposited 2018-04-15 Different construct Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 82–470（389 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 8 GOL GLYCEROL × 16 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；1.4 M KH2PO4 + 3.0 M K2HPO4 (2:1)
Resolution 1.40 Å R-free 0.170
6HCX Influenza Virus N9 Neuraminidase A complex with Zanamivir molecule (Tern). Deposited 2018-08-16 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded CA CALCIUM ION × 8 GOL GLYCEROL × 12 ZMR ZANAMIVIR × 4 K POTASSIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；N9 crystals were grown by hanging-drop vapour diffusion against a reservoir of 1.9M potassium phosphate, pH 6.8, starting with equal volumes of N9 NA (10-15 mg/ml in water) and potassium phosphate buffer 1.4M KH2PO4:3M K2HPO4 in ratio 8:4, pH 6.6 at 20 degrees celsius. Inhibitor complexes obtained by soaking N9 crystals in a solution of 1.4M potassium phosphate buffer, pH 6.8, containing 5mM of inhibitor for 3 hours at 18 degrees celsius. Soaked in glycerol cryo-buffer.
Resolution 1.30 Å R-free 0.125
6HEB Influenza A Virus N9 Neuraminidase complex with Oseltamivir (Tern). Deposited 2018-08-20 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded CA CALCIUM ION × 8 GOL GLYCEROL × 24 G39 (3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；N9 crystals were grown by hanging drop vapour diffusion against a reservoir of 1.9M potassium phosphate, pH 6.8, starting with equal volumes of N9 NA(10-15mg/ml in water) and potassium phosphate buffer 1.4M KH2PO4:3M K2HPO4 in ratio 8:4, pH 6.6 at 20 degrees celsius. Inhibitor complexeswere obtained by soaking N9 crystals in a solution of 1.4M potassium phosphate buffer, pH 6.8, containing 5 mM of inhibitor for 3 hours at 18 degrees celsius. Glycerol cryo-buffer also soaked in.
Resolution 1.75 Å R-free 0.142
6HFC Influenza A Virus N9 Neuraminidase Native (Tern). Deposited 2018-08-21 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded CA CALCIUM ION × 8 GOL GLYCEROL × 28 K POTASSIUM ION × 8 CO2 CARBON DIOXIDE × 4 PO4 PHOSPHATE ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；N9 crystals were grown by-hanging drop vapour diffusion against a reservoir of 1.9M potassium phosphate, pH 6.8, starting with equal volumes of N9 NA solution (10 to 15 mg/ml in water) and potassium phosphate buffer 1.4M KH2PO4: 3M K2HPO4 in ratio 8:4, pH 6.6 at 20 degrees celsius. Large rhombic dodecahedral crystals grew within a few days.
Resolution 1.29 Å R-free 0.164
6HG0 Influenza A Virus N9 Neuraminidase complex with NANA (Tern/Australia). Deposited 2018-08-22 Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded CA CALCIUM ION × 8 GOL GLYCEROL × 16 PO4 PHOSPHATE ION × 4 SIA N-acetyl-alpha-neuraminic acid × 8 K POTASSIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.6；293 K；N9 crystals were grown by hanging-drop vapour diffusion against a reservoir of 1.9M potassium phosphate, pH 6.8, starting with equal volumes of N9 NA (10-15 mg/ml in water) and potassium phosphate buffer 1.4M KH2PO4:3M K2HPO4 in ratio 8:4, pH 6.6 at 20 degrees celsius. Inhibitor complexes obtained by soaking N9 crystals in a solution of 1.4M potassium phosphate buffer, pH 6.8, containing 5mM of inhibitor for 3 hours at 4 degrees celsius. Soaked in glycerol cryo-buffer.
Resolution 1.30 Å R-free 0.120
6MCX INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) RECOMBINANT HEAD DOMAIN Deposited 2018-09-02 Different ligand/ion Different experimental conditions Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 GOL GLYCEROL × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；1.4 M KH2PO4 + 3.0 M K2HPO4 (2:1), PH 7.0, VAPOR DIFFUSION, HANGING DROP,
Resolution 2.30 Å R-free 0.206
6NN9 REFINED ATOMIC STRUCTURES OF N9 SUBTYPE INFLUENZA VIRUS NEURAMINIDASE AND ESCAPE MUTANTS Deposited 1991-03-28 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.30 Å
7NN9 NATIVE INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) Deposited 1995-03-15 Different ligand/ion Different structure-quality metrics Assembly 1 Other combination Homooligomer；Protein × 4 PDB declaration: tetrameric
Chain A 83–470（388 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 8 CA CALCIUM ION × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å

47 other PDB entries and 52 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NRAM_IATRA
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–388； UniProt 83–470

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 1nnc

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1nnc
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1nnc
Deposition date deposition_date1995-03-15
Structure title titleINFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) COMPLEXED WITH 4-GUANIDINO-NEU5AC2EN INHIBITOR
Keywords keywordsNEURAMINIDASE, SIALIDASE, HYDROLASE (O-GLUCOSYL); HYDROLASE (O-GLUCOSYL)
Experimental Method methodX-RAY DIFFRACTION
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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier21.23 Å
Radius of gyration Rg (electron density) rg_electron20.43 Å
Forward intensity I(0) i037983800.00
Molecular weight molecular_weight45679.0 kDa
Excluded volume excluded_volume56161 ų
Envelope volume envelope_volume64700 ų
Hydration-shell volume shell_volume25397 ų
Envelope diameter envelope_diameter79.0 Å
Shell Rg shell_rg28.06 Å
Envelope Rg envelope_rg21.36 Å
Shape Rg shape_rg20.40 Å
Total Rg total_rg21.36 Å
Total atoms total_atoms3202
Residues n_residues387
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 Å−1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3
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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax77.7 Å
Rg (real space) rg_real21.14 Å
Rg uncertainty (real space) rg_real_error0.51 Å
I(0) (real space) i0_real3.7980e+07
I(0) uncertainty (real space) i0_real_error4.6020e+05
Rg (reciprocal space) rg_reciprocal21.16 Å
I(0) (reciprocal space) i0_reciprocal37980000.0000
Solution quality estimate total_estimate0.8227
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.4 Å
Skewness Skewness skewness0.317
Kurtosis Kurtosis kurtosis0.026
Angular range angular_range— – 0.3750 Å−1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha15290000.0000
Real-space data points n_real_points69
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.578; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.973; Smooth: 0.982
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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (7)

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7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1nnca_
Class classb — All beta proteins
Fold Fold foldb.68 — 6-bladed beta-propeller
Superfamily Superfamily superfamilyb.68.1 — Sialidases
Family Family familyb.68.1.1 — Sialidases (neuraminidases)

CATH v4.4 (1 domains)

Domain ID domain_id1nncA00
Class class2 — Mainly Beta
Architecture architecture120 — 6 Propeller
Topology topology10 — Neuraminidase
Homologous superfamily homologous superfamily10 —
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8. Citations (7)

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9. Files and Curves (10)