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PDB File Format v. 3.2
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ORIGXn
Overview
The ORIGXn (n = 1, 2, or 3) records present the transformation from the orthogonal coordinates
contained in the entry to the submitted coordinates.
Record Format
COLUMNS DATA TYPE FIELD DEFINITION
----------------------------------------------------------------
1 - 6 Record name "ORIGXn" n=1, 2, or 3
11 - 20 Real(10.6) o[n][1] On1
21 - 30 Real(10.6) o[n][2] On2
31 - 40 Real(10.6) o[n][3] On3
46 - 55 Real(10.5) t[n] Tn
Details
* This information is included in the file even if the transformation is an identity transformation (unitary
matrix, null translation vector). See the SCALE section of this document for a definition of the default
orthogonal Angstroms system.
* If the original submitted coordinates are Xsub, Ysub, Zsub and the orthogonal Angstroms
coordinates contained in the data entry are X, Y, Z, then:
Xsub = O11X + O12Y + O13Z + T1
Ysub = O21X + O22Y + O23Z + T2
Zsub = O31X + O32Y + O33Z + T3
Verification/Validation/Value Authority Control
If the coordinates are submitted in the same orthogonal Angstrom coordinate frame as they appear in
the entry (the usual case), then ORIGX is an identity matrix with a null translation vector.
If the transformation is not an identity matrix with a null translation vector, then applying this
transformation to the coordinates in the entry yields the coordinates of the original deposited file.
Relationships to Other Record Types
ORIGX relates the coordinates in the ATOM and HETATM records to the coordinates in the file.
Example