Data Item _entity.src_method
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General 
- Item name
- _entity.src_method
- Category name
- entity
- Attribute name
- src_method
- Required in PDB entries
- Used in current PDB entries
- Yes, in about 100.0 % of entries
Item Description
The method by which the sample for the entity was produced.
Entities isolated directly from natural sources (tissues, soil
samples, etc.) are expected to have further information in the
ENTITY_SRC_NAT category. Entities isolated from genetically
manipulated sources are expected to have further information in
the ENTITY_SRC_GEN category.
Additional Descriptive Information for Depositors
The method by which the entity was produced, either natural, manipulated, or synthetic.Entities isolated directly from natural sources (tissues, soil samples, etc.) are expected to have further information in the entity_src_nat category. Entities isolated from genetically manipulated sources are expected to have further information in the entity_src_gen category. Water is considered NATural and other solvents as MANipulated.
Additional Item Example for Depositors1
MAN
Additional Item Example for Depositors2
NAT
Additional Item Example for Depositors3
SYN
Data Type 
- Data type code
- ucode
- Data type detail
- code item types/single words (case insensitive) ...
- Primitive data type code
- uchar
- Regular expression
- [_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| man | entity isolated from a genetically manipulated source |
| nat | entity isolated from a natural source |
| syn | entity obtained synthetically |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| man | entity isolated from a genetically manipulated source |
| nat | entity isolated from a natural source |
| syn | entity obtained synthetically |