Table 2. Results of the twinning tests for the Q88Y25_Lacpl data processed in space group I4 carried out with phenix_xtriage .

The expected values for twinning tests are 〈I ²〉/〈I〉² of 2.000 for untwinned and 1.500 for a perfect twin; 〈F〉²/〈F ²〉 of 0.785 for untwinned and 0.885 for a perfect twin; 〈|E ² − 1|〉 of 0.736 for untwinned and 0.541 for a perfect twin.

Likely space group	I4
Twinning tests, for acentric data
〈I2〉/〈I〉2	1.537
〈F〉2/〈F2〉	0.879
〈|E2 − 1|〉	0.543
Multivariate Z score from L-test	12.128
Possible twin operator	−h, k, −l