1NGP: N1G9 (IgG1-lambda) FAB fragment

N1G9 (IgG1-lambda) FAB fragment complexed with (4-hydroxy-3-nitrophenyl) acetate. Determined by X-ray diffraction at 2.4 Å resolution. Released 11 Jul 1996.

Method
X-ray diffraction
Resolution
2.4 Å
Organism
Mus musculus
Chains
2
Atoms
3,380
Mol. weight
47.5 kDa
Ligands
NPA
Released
11 Jul 1996

Explore 1NGP in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

1NGP contains 13 α-helices and 46 β-strands across 2 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain H: 7 helices, 23 β-strands

ElementResiduesLengthSheet
β-strand3-536
β-strand9-1247
β-strand18-2586
α-helix29-313
β-strand33-4087
β-strand44-5187
β-strand58-6037
β-strand68-7366
β-strand78-8366
α-helix88-903
β-strand92-9987
β-strand10912
β-strand11017
β-strand114-11857
α-helix121-1233
β-strand12418
β-strand127-13159
β-strand142-152119
β-strand15318
β-strand158-161410
α-helix162-1643
β-strand166110
β-strand170-17239
α-helix173-1753
β-strand176-17839
β-strand181-191119
α-helix194-1974
β-strand201-206610
α-helix207-2093
β-strand211-216610
Chain L: 6 helices, 23 β-strands
ElementResiduesLengthSheet
β-strand4-631
β-strand9-1242
β-strand17-2481
β-strand2711
β-strand36-4162
β-strand45-5172
β-strand55-5622
α-helix571
β-strand64-6961
β-strand72-7871
α-helix82-843
β-strand86-9382
β-strand98-10032
β-strand104-10852
β-strand11413
β-strand117-12154
α-helix122-1243
α-helix125-1284
β-strand132-142114
β-strand14313
β-strand147-15375
β-strand156-15725
β-strand162-16434
α-helix165-1673
β-strand168-16924
β-strand175-184104
α-helix185-1906
β-strand193-20085
β-strand203-21085

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
N1G9 (IgG1-lambda)Lprotein215Mus musculusG0YP42 (AlphaFold model)
N1G9 (IgG1-lambda)Hprotein222Mus musculusP01751
Sequence of entity 1 (L), FASTA
>1NGP_1 N1G9 (IGG1-LAMBDA) (chains L)
QAVVTQESALTTSPGETVTLTCRSSTGAVTTSNYANWVQEKPDHLFTGLIGGTNNRAPGV
PARFSGSLIGDKAALTITGAQTEDEAIYFCALWYSNHWVFGGGTKLTVLGQPKSSPSVTL
FPPSSEELETNKATLVCTITDFYPGVVTVDWKVDGTPVTQGMETTQPSKQSNNKYMASSY
LTLTARAWERHSSYSCQVTHEGHTVEKSLSRADCS
Sequence of entity 2 (H), FASTA
>1NGP_2 N1G9 (IGG1-LAMBDA) (chains H)
QVQLQQPGAELVKPGASVKLSCKASGYTFTSYWMHWVKQRPGRGLEWIGRIDPNSGGTKY
NEKFKSKATLTVDKPSSTAYMQLSSLTSEDSAVYYCARYDYYGSSYFDYWGQGTTLTVSS
AKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSD
LYTLSSSVTVPSSPWPSETVTCNVAHPASSTKVDKKIVPRDC

Ligands and cofactors

IDNameFormulaCopies
NPA2-(4-hydroxy-3-nitrophenyl)acetic acidC8 H7 N O51

Water and common crystallization additives (SO4) are not listed.

Primary citation

Three-dimensional structures of the Fab fragment of murine N1G9 antibody from the primary immune response and of its complex with (4-hydroxy-3-nitrophenyl)acetate. Mizutani, R., Miura, K., Nakayama, T. et al. J Mol Biol (1995) 254:208-222. DOI 10.1006/jmbi.1995.0612 · PubMed

Other PDB entries of the same protein (UniProt G0YP42 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

About this viewer

MolViewer shows 1NGP directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.