<xsd:complexType name="struct_biolType">
<xsd:annotation>
<xsd:documentation xml:lang="en">Data items in the STRUCT_BIOL category record details about the structural elements that form each structure of biological significance. A given crystal structure may contain many different biological structures. A given structural component in the asymmetric unit may be part of more than one biological unit. A given biological structure may involve crystallographic symmetry. For instance, in a structure of a lysozyme-FAB structure, the light- and heavy-chain components of the FAB could be one biological unit, while the two chains of the FAB and the lysozyme could constitute a second biological unit. Example 1 - based on PDB entry 5HVP and laboratory records for the structure corresponding to PDB entry 5HVP. <PDBx:struct_biolCategory> <PDBx:struct_biol id="1"> <PDBx:details> significant deviations from twofold symmetry exist in this dimeric enzyme</PDBx:details> </PDBx:struct_biol> <PDBx:struct_biol id="2"> <PDBx:details> The drug binds to this enzyme in two roughly twofold symmetric modes. Hence this biological unit (2) is roughly twofold symmetric to biological unit (3). Disorder in the protein chain indicated with alternative ID 1 should be used with this biological unit.</PDBx:details> </PDBx:struct_biol> <PDBx:struct_biol id="3"> <PDBx:details> The drug binds to this enzyme in two roughly twofold symmetric modes. Hence this biological unit (3) is roughly twofold symmetric to biological unit (2). Disorder in the protein chain indicated with alternative ID 2 should be used with this biological unit.</PDBx:details> </PDBx:struct_biol> </PDBx:struct_biolCategory></xsd:documentation>
</xsd:annotation>
<xsd:sequence>
<xsd:element name="struct_biol" minOccurs="0" maxOccurs="unbounded">
<xsd:complexType>
<xsd:all>
<xsd:element name="details" minOccurs="0" maxOccurs="1" nillable="true" type="xsd:string">
<xsd:annotation>
<xsd:documentation xml:lang="en">A description of special aspects of the biological unit. The drug binds to this enzyme in two roughly twofold symmetric modes. Hence this biological unit (3) is roughly twofold symmetric to biological unit (2). Disorder in the protein chain indicated with alternative ID 2 should be used with this biological unit.</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="pdbx_aggregation_state" minOccurs="0" maxOccurs="1" nillable="true">
<xsd:annotation>
<xsd:documentation xml:lang="en">A description of the structural aggregation in this assembly.</xsd:documentation>
</xsd:annotation>
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="MONOMER"/>
<xsd:enumeration value="DIMER"/>
<xsd:enumeration value="TRIMER"/>
<xsd:enumeration value="TETRAMER"/>
<xsd:enumeration value="HEXAMER"/>
<xsd:enumeration value="MORE"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
<xsd:element name="pdbx_assembly_method" minOccurs="0" maxOccurs="1" nillable="true" type="xsd:string">
<xsd:annotation>
<xsd:documentation xml:lang="en">The method or experiment used to determine this assembly. AUTHOR PROVIDED', 'LCMS', 'PISA', 'PQS</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="pdbx_formula_weight" minOccurs="0" maxOccurs="1" nillable="true">
<xsd:annotation>
<xsd:documentation xml:lang="en">Estimated formula mass in daltons of the biological assembly.</xsd:documentation>
</xsd:annotation>
<xsd:simpleType>
<xsd:restriction base="xsd:decimal">
<xsd:minInclusive value="1.0"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>
<xsd:element name="pdbx_formula_weight_method" minOccurs="0" maxOccurs="1" nillable="true" type="xsd:string">
<xsd:annotation>
<xsd:documentation xml:lang="en">Method used to determine attribute pdbx_formula_weight in category struct_biol. MASS SPEC CALCULATION</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:element name="pdbx_parent_biol_id" minOccurs="0" maxOccurs="1" nillable="true" type="xsd:string">
<xsd:annotation>
<xsd:documentation xml:lang="en">An identifier for the parent biological assembly if this biological unit is part of a complex assembly. 1 2 3</xsd:documentation>
</xsd:annotation>
</xsd:element>
</xsd:all>
<xsd:attribute name="id" use="required" type="xsd:string">
<xsd:annotation>
<xsd:documentation xml:lang="en">The value of attribute id in category struct_biol must uniquely identify a record in the STRUCT_BIOL list. Note that this item need not be a number; it can be any unique identifier.</xsd:documentation>
</xsd:annotation>
</xsd:attribute>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType> |