This family includes peptides such as the Atracotoxin-Hvf17 Swiss:P81803. It is a a non-toxic peptide isolated from the venom of Blue Mountains funnel-web spider Hadronyche versuta. It does not function like classical funnel-web spider atracotoxins to modulate mammalian or insect voltage-gated ion channel function since it lacks insecticidal activity and fails to affect vas deferens smooth muscle or skeletal muscle contractility. This peptide has ten conserved cysteine residues similar to AVIT family members such as MIT1. Due to the lack of the AVIT N-terminal four residues and lack of functional similarity to the AVIT family, the Atracotoxin-Hvf17 is classified as MIT-like atracotoxin [1].

1: Discovery of an MIT-like atracotoxin family: spider venom peptides that share sequence homology but not pharmacological properties with AVIT family proteins. Wen S, Wilson DT, Kuruppu S, Korsinczky ML, Hedrick J, Pang L, Szeto T, Hodgson WC, Alewood PF, Nicholson GM; Peptides. 2005;26:2412-2426. PMID:15979762