CAT and systemic lupus erythematosus: Aside from histones, a number of rarer SLE auto-antibodies correspond to proteins identified on SLE NETs (128) including HMG-17 (131), catalase (132), lamin B1 and B2 (133–135), apolipoprotein A1 (136), cathelicidin (LL37) (137–139), annexin AI and α-enolase (140, 141).