Description of  _struct_keywords.ndb_keywords


==> Keywords describing this structure that are mapped into the PDB HEADER.

==> Two or more HEADERs can be combined using the following rules:

For macromolecular complexes:

    HEADER1/HEADER2 

E.g. TRANSCRIPTION/DNA (note that protein is listed first in protein/NA complexes)

Multifunction macromolecule:

    HEADER1,HEADER2

Macromolecular Inhibitors and Antagonists:

    HEADER INHIBITOR

E.g. HYDROLASE INHIBITOR

... similarly Activators: 

    HYDROLASE ACTIVATOR

... similarly receptors:

    HYDROLASE RECEPTOR

... similarly regulators:

    HYDROLASE REGULATOR

==> In the following list, the more specific HEADERs are listed on top and 
should be used first. 

ALLERGEN
ANTIBIOTIC         (peptidic, saccharide containing)
ANTIFREEZE PROTEIN
ANTIFUNGAL PROTEIN
ANTIMICROBIAL PROTEIN
ANTITUMOR PROTEIN
ANTIVIRAL PROTEIN
APOPTOSIS
ATTRACTANT
BIOSYNTHETIC PROTEIN
BLOOD CLOTTING
CARBOHYDRATE
CELL ADHESION
CELL CYCLE
CELL INVASION
CHAPERONE
CONTRACTILE PROTEIN
CYTOKINE         (includes interleukins, interferons)
DE NOVO PROTEIN    (ARTIFICIALLY DESIGNED, OFTEN SYNTHETIC)
DNA
ELECTRON TRANSPORT
ENDOCYTOSIS
EXOCYTOSIS
FLAVOPROTEIN
FLUORESCENT PROTEIN
GENE REGULATION   (use only when TRANSCRIPTION, REPLICATION, TRANSLATION are not applicable)
HORMONE
HYDROLASE       (E.C.3.-.-.-)
IMMUNE SYSTEM    (includes antibodies, antigens)
ISOMERASE     (E.C.5.-.-.-)
LIGASE     (E.C.6.-.-.-)
LIPID TRANSPORT
LUMINESCENT PROTEIN
LYASE      (E.C.4.-.-.-)
MEMBRANE PROTEIN (no other function known)
METAL TRANSPORT
MOTOR PROTEIN
NEUROPEPTIDE
NUCLEAR PROTEIN (whether involved in binding RNA/DNA or some sort of nuclear processing is unclear)
ONCOPROTEIN
OXIDOREDUCTASE      (E.C.1.-.-.-)
OXYGEN BINDING
PHOTOSYNTHESIS
PLANT PROTEIN      (no other function known)
PROTON TRANSPORT
PROTEIN TRANSPORT  (a protein involved in transporting other protein)
RECOMBINATION
REPLICATION
RIBOSOME     (use only when TRANSLATION is not correct; do not specify /RNA even when present!)
RIBOSOMAL PROTEIN
RNA
SIGNALING PROTEIN    (includes G-proteins)
SPLICING
STRUCTURAL GENOMICS (product of a probable gene)
STRUCTURAL PROTEIN
TOXIN      (not antibiotic, can use e.g. HYDROLASE INHIBITOR, TOXIN)
TRANSFERASE     (E.C.2.-.-.-)
TRANSCRIPTION      (DNA to RNA)
TRANSLATION       (protein synthesis; prefer over RIBOSOME)
TRANSPORT PROTEIN    (a protein that transports anything)
VIRUS     (for entire viral capsid)
VIRAL PROTEIN (viral protein not involved in the viral capsid)
VIRUS LIKE PARTICLE ((for cases where virus like particles are assembled , but are not the standard virus)

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When no other function is known use the following:
CHOLINE-BINDING PROTEIN
DNA BINDING PROTEIN
RNA BINDING PROTEIN
LIPID BINDING PROTEIN
METAL BINDING PROTEIN (such as ZN, FE)
PEPTIDE BINDING PROTEIN
PROTEIN BINDING    (implies binding of protein by protein)
SUGAR BINDING PROTEIN
xxx-BINDING PROTEIN (for any xxx ligand if none of above applies, such as HEME, AVIDIN, BIOTIN)
PROTEIN FIBRIL
UNKNOWN FUNCTION

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