Corrigendum to “High-level over-expression, purification, and crystallization of a novel phospholipase C/sphingomyelinase from Pseudomonas aeruginosa” [Protein Expr. Purif. 90 (2013) 40–46]

The authors regret that the reported microcrystals of l-selenomethionine PlcHR2 (space group C2 with a = 157.9 Å, b = 75.4 Å, c = 141.0 Å, β = 93.2) presented in Table 1 on page 44 have been solved and identified as the putative cysteine hydrolase YcaC from Pseudomonas aeruginosa. YcaC has presumably been co-purified as minor contaminant and crystallized from the l-selenomethioine protein preparations. Details of the structure determination and analysis of YcaC will be described elsewhere (Groftehauge, Truan, Vasil, Denny, Vasil & Pohl, 2014). The crystal structure analysis of native PlcHR2 (space group C222₁, a = 175.5 Å, b = 196.4 Å, c = 325.3 Å) also reported in Table 1 is currently underway. The authors would like to apologize for any inconvenience caused.