LIGANDS

Entry composition & details

PDBx/mmCIF category Legacy PDB format records Description
_entity COMPOUND Details about each unique molecular entity (protein, nucleic acid, carbohydrate, small molecule) present in the structure.

Example:

loop_
_entity.id
_entity.type
_entity.src_method
_entity.pdbx_description
_entity.formula_weight
_entity.pdbx_number_of_molecules
_entity.pdbx_ec
_entity.pdbx_mutation
_entity.pdbx_fragment
_entity.details
1 polymer man '3C-like proteinase' 33825.547 1 3.4.22.69 ? ? ?
2 non-polymer syn
;(1R,2S,5S)-N-{(1E,2S)-1-imino-3[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}-6,6-dimethyl-
3-[3-methyl-N-(trifluoroacetyl)-L-valyl]-3-azabicyclo[3.1.0]hexane-2-carboxamide
;
501.542 1 ? ? ? ?
3 water nat water 18.015 83 ? ? ? ?
PDBx/mmCIF category Legacy PDB format records Description
_pdbx_entity_nonpoly N/A Provides mapping between entity and the non polymer component.

Example:

loop_
_pdbx_entity_nonpoly.entity_id
_pdbx_entity_nonpoly.name
_pdbx_entity_nonpoly.comp_id
2
;(1R,2S,5S)-N-{(1E,2S)-1-imino-3-[(3S)-2-oxopyrrolidin-3-yl}-6,6-dimethyl-
3-[3-methyl-N-(trifluoroacetyl)-L-valyl]-3-azabicyclo[3.1.0]hexane-2-carboxamide
;
4WI
3 water HOH
PDBx/mmCIF category Legacy PDB format records Description
_chem_comp
  • HET
  • HETNAM
  • HETSYN
  • FORMUL
Details about each of the chemical components from which the relevant chemical structures can be constructed, such as name, synonym, mass, or formula.

Example:

loop_
_chem_comp.id
_chem_comp.type
_chem_comp.mon_nstd_flag
_chem_comp.name
_chem_comp.pdbx_synonyms
_chem_comp.formula
_chem_comp.formula_weight
4WI non-polymer .
;(1R,2S,5S)-N{(1E,2S)-1-imino-3-[(3S)-2-oxopyrrolidin-3-yl]propan-2-yl}-6,6-dimethyl-
3-[3-methyl-N-(trifluoroacetyl)-L-valyl]-3-azabicyclo[3.1.0]hexane-2-carboxamide
;
'PF-07321332, bound form; nirmatrelvir, bound form; Paxlovid, bound form' 'C23 H34 F3
N5 O4' 501.542
ALA 'L-peptide linking' y ALANINE ? 'C3 H7 N O2' 89.093
ARG 'L-peptide linking' y ARGININE ? 'C6 H15 N4 O2 1' 175.209
ASN 'L-peptide linking' y ASPARAGINE ? 'C4 H8 N2 O3' 132.118
ASP 'L-peptide linking' y 'ASPARTIC ACID' ? 'C4 H7 N O4' 133.103
... (truncated for brevity)
PDBx/mmCIF category Legacy PDB format records Description
_pdbx_nonpoly_scheme N/A Residue level nomenclature mapping for non-polymer entities.

Example:

loop_
_pdbx_nonpoly_scheme.asym_id
_pdbx_nonpoly_scheme.entity_id
_pdbx_nonpoly_scheme.mon_id
_pdbx_nonpoly_scheme.ndb_seq_num
_pdbx_nonpoly_scheme.pdb_seq_num
_pdbx_nonpoly_scheme.auth_seq_num
_pdbx_nonpoly_scheme.pdb_mon_id
_pdbx_nonpoly_scheme.auth_mon_id
_pdbx_nonpoly_scheme.pdb_strand_id
_pdbx_nonpoly_scheme.pdb_ins_code
B 2 4WI 1 401 1 4WI UNL A .
C 3 HOH 1 501 12 HOH HOH A .
C 3 HOH 2 502 85 HOH HOH A .
C 3 HOH 3 503 52 HOH HOH A .
C 3 HOH 4 504 27 HOH HOH A .
C 3 HOH 5 505 29 HOH HOH A .
C 3 HOH 6 506 3 HOH HOH A .
C 3 HOH 7 507 23 HOH HOH A .
C 3 HOH 8 508 55 HOH HOH A .
C 3 HOH 9 509 42 HOH HOH A .
C 3 HOH 10 510 53 HOH HOH A .
... (truncated for brevity)

Connectivity

PDBx/mmCIF category Legacy PDB format records Description
_struct_conn LINK Details about the connections between portions of the structure. These can be covalent bonds, disulfide bridges, hydrogen bonds, and so on.

Example:

_struct_conn.id covale1
_struct_conn.conn_type_id covale
_struct_conn.pdbx_leaving_atom_flag none
_struct_conn.pdbx_PDB_id ?
_struct_conn.ptnr1_label_asym_id A
_struct_conn.ptnr1_label_comp_id CYS
_struct_conn.ptnr1_label_seq_id 145
_struct_conn.ptnr1_label_atom_id SG
_struct_conn.pdbx_ptnr1_label_alt_id ?
_struct_conn.pdbx_ptnr1_PDB_ins_code ?
_struct_conn.pdbx_ptnr1_standard_comp_id ?
_struct_conn.ptnr1_symmetry 1_555
_struct_conn.ptnr2_label_asym_id B
_struct_conn.ptnr2_label_comp_id 4WI
_struct_conn.ptnr2_label_seq_id .
_struct_conn.ptnr2_label_atom_id C3
_struct_conn.pdbx_ptnr2_label_alt_id ?
_struct_conn.pdbx_ptnr2_PDB_ins_code ?
_struct_conn.ptnr1_auth_asym_id A
_struct_conn.ptnr1_auth_comp_id CYS
_struct_conn.ptnr1_auth_seq_id 145
_struct_conn.ptnr2_auth_asym_id A
_struct_conn.ptnr2_auth_comp_id 4WI
_struct_conn.ptnr2_auth_seq_id 401
_struct_conn.ptnr2_symmetry 1_555
_struct_conn.pdbx_ptnr3_label_atom_id ?
_struct_conn.pdbx_ptnr3_label_seq_id ?
_struct_conn.pdbx_ptnr3_label_comp_id ?
_struct_conn.pdbx_ptnr3_label_asym_id ?
_struct_conn.pdbx_ptnr3_label_alt_id ?
_struct_conn.pdbx_ptnr3_PDB_ins_code ?
_struct_conn.details ?
_struct_conn.pdbx_dist_value 1.804
_struct_conn.pdbx_value_order ?
_struct_conn.pdbx_role ?
PDBx/mmCIF category Legacy PDB format records Description
_chem_comp_bond N/A Details about the bonds and bond orders between atoms in a chemical component.

Example:

loop_
_chem_comp_bond.comp_id
_chem_comp_bond.atom_id_1
_chem_comp_bond.atom_id_2
_chem_comp_bond.value_order
_chem_comp_bond.pdbx_aromatic_flag
_chem_comp_bond.pdbx_stereo_config
_chem_comp_bond.pdbx_ordinal
4WI O1 C8 doub N N 1
4WI C8 N2 sing N N 2
4WI C8 C5 sing N N 3
4WI N2 C7 sing N N 4
4WI C4 C5 sing N N 5
4WI C4 C2 sing N N 6
4WI C5 C6 sing N N 7
4WI N5 C3 doub N N 8
4WI C3 C2 sing N N 9
4WI C7 C6 sing N N 10
4WI C2 N1 sing N N 11
4WI N2 H9 sing N N 69
... (truncated for brevity)
PDBx/mmCIF category Legacy PDB format records Description
_chem_comp_atom N/A Details about the atoms in a chemical component.

Example:

loop_
_chem_comp_atom.comp_id
_chem_comp_atom.atom_id
_chem_comp_atom.type_symbol
_chem_comp_atom.pdbx_aromatic_flag
_chem_comp_atom.pdbx_stereo_config
_chem_comp_atom.pdbx_ordinal
4WI C8 C N N 1
4WI C3 C N N 2
4WI C1 C N N 3
4WI C13 C N N 4
4WI C21 C N N 5
4WI C6 C N N 6
4WI C7 C N N 7
4WI C10 C N N 8
4WI C5 C N S 9
4WI C9 C N S 10
4WI C11 C N S 11
... (truncated for brevity)