Molecular evolution of Odorant-binding proteins gene family in two closely related Anastrepha fruit flies

Table 2 Attributes of Anastrepha Odorant-binding proteins subfamilies

	Subfamily	Number of members	ORF length (aa)	Protein core region	Amino acid identity (%)
A. fraterculus	classic	10	125–309	C1 - X_24–33 - C2 - X₃ - C3 - X_35–47 - C4 - X_8–18 - C5 - X₈ - C6	28.20
	minus-C	6	143–156	C1 - X₂₆ - C2 - X₃ - C3 - X_39–40 - C4 - X₁₀ - C5 - X₈ - C6 and C1 - X_23–30 - C3 - X₃₈ - C4 - X_18–19 - C6	39.14
	plus-C	5	194–231	C1a - X_11–13 - C1b - C1c - C1 - X_21–48 - C2 - X₃ - C3 - X₄₃ - C4 - X_20–33 - C5 - X₉ - C6 - X₈ - C6a - X₁₀ - C6b - X₉ - C6c	45.14
	dimer	2	241–282	C1 - X2_8–29 - C2 - X₃ - C3 - X₃₁ - C4 - X_10–11 - C5 - X₈ - C6 - X_17–28 - C1′ - X_24–25 - C2′ - X₃ - C3′ - X₃₅ - C4′ - X_9–12 - C5′ - X₈ - C6′	65.75
A. obliqua	classic	10	125–309	C1 - X_24–37 - C2 - X₃ - C3 - X_35–42 - C4 - X_8–12 - C5 - X₈ - C6	29.54
	minus-C	7	143–156	C1 - X₂₆ - C2 - X₃ - C3 - X_39–40 - C4 - X₁₀ - C5 - X₈ - C6 and C1 - X_23–30 - C3 - X₃₈ - C4 - X₁₈ - C6	38.10
	plus-C	5	178–259	C1a - X_11–13 - C1b - C1c - C1 - X_21–48 - C2 - X₃ - C3 - X₄₃ - C4 - X_20–33 - C5 - X₉ - C6 - X₈ - C6a - X₁₀ - C6b - X₉ - C6c	40.25
	dimer	2	241–282	C1 - X_28–29 - C2 - X₃ - C3 - X₃₁ - C4 - X_10–11 - C5 - X₈ - C6 - X_17–28 - C1′ - X_24–25 - C2′ - X₃ - C3′ - X₃₅ - C4′ - X_9–12 - C5′ - X₈ - C6′	65.14

Both protein core regions are reported for the minus-C subfamily, with four and six conserved cysteine residues

ISSN: 2730-7182