Score = 58.2 bits (139), Expect = 1e-08, Method: Compositional matrix adjust.
Identities = 35/108 (32%), Positives = 52/108 (48%), Gaps = 3/108 (2%)
Query: 1 MEKLVFLFAIASLSVAQQYVK--DPKEAAILSEKRYLSNNGQFGSAYTQEDGVQFTEESD 58
M K V + A+ ++ A V D A +LS + +G F S+ +G++ D
Sbjct: 1 MFKFVMILAVVGVATALAPVSRSDDVHADVLSRSDDVRADG-FDSSLHTSNGIEQAASGD 59
Query: 59 QDGNRRGAYSYIDPSGQRRTITYTAGKNGFQASGDDIPVAPPAPPAPA 106
GN G + +I P G+ + Y A +NG+Q SG IP PP P A A
Sbjct: 60 AHGNIHGNFGWISPEGEHVEVKYVANENGYQPSGAWIPTPPPIPEAIA 107
Component of the larval cuticle.
Drosophila melanogaster (taxid: 7227)
>sp|P02839|LCP1_DROME Larval cuticle protein 1 OS=Drosophila melanogaster GN=Lcp1 PE=1 SV=3
Score = 57.8 bits (138), Expect = 2e-08, Method: Compositional matrix adjust.
Identities = 35/110 (31%), Positives = 53/110 (48%), Gaps = 7/110 (6%)
Query: 1 MEKLVFLFAIASLSVAQQYV------KDPKEAAILSEKRYLSNNGQFGSAYTQEDGVQFT 54
M K V + A+ L+VA V + A +LS+ + +G F S+ +G++
Sbjct: 1 MFKFVMICAVLGLAVANPPVPHSLGRSEDVHADVLSQSDDVRADG-FDSSLHTSNGIEQA 59
Query: 55 EESDQDGNRRGAYSYIDPSGQRRTITYTAGKNGFQASGDDIPVAPPAPPA 104
D GN G + +I P G+ + Y A +NG+Q SG IP PP P A
Sbjct: 60 ASGDAHGNIHGNFGWISPEGEHVEVKYVANENGYQPSGAWIPTPPPIPEA 109
Score = 51.6 bits (122), Expect = 1e-06, Method: Compositional matrix adjust.
Identities = 35/118 (29%), Positives = 54/118 (45%), Gaps = 13/118 (11%)
Query: 1 MEKLVFLFAIASLSVA-QQYVKDPK-----------EAAILSEKRYLSNNGQFGSAYTQE 48
M K V +FA+ ++ A +V P+ A + SE + +G F +
Sbjct: 1 MFKFVMVFAVLGVAAAGVAHVPHPQVSHPVGRSEDVHAEVKSEHSDVRADG-FDADLLVS 59
Query: 49 DGVQFTEESDQDGNRRGAYSYIDPSGQRRTITYTAGKNGFQASGDDIPVAPPAPPAPA 106
+ +Q D GN G++S+I P G+ I Y A +NG+Q G +P PP P A A
Sbjct: 60 NSIQQASSGDVHGNIHGSFSWISPEGEHVEIKYVADENGYQPVGAVLPTPPPIPEAIA 117
Component of the larval cuticle.
Drosophila miranda (taxid: 7229)
>sp|Q8T4J9|CU27_MANSE Pupal cuticle protein 27 OS=Manduca sexta GN=PCP27 PE=1 SV=1
Score = 49.3 bits (116), Expect = 6e-06, Method: Compositional matrix adjust.
Identities = 23/64 (35%), Positives = 32/64 (50%)
Query: 41 FGSAYTQEDGVQFTEESDQDGNRRGAYSYIDPSGQRRTITYTAGKNGFQASGDDIPVAPP 100
F + + DG D GN G + ++ P G + Y A +NG+Q S D +PVAPP
Sbjct: 34 FKTVVSLSDGSASQASGDVHGNIDGVFEWVSPEGVHVRVAYKADENGYQPSSDLLPVAPP 93
Query: 101 APPA 104
P A
Sbjct: 94 IPEA 97
Component of the larval cuticle.
Drosophila miranda (taxid: 7229)
>sp|P91629|LCP2_DROMI Larval cuticle protein 2 OS=Drosophila miranda GN=Lcp2 PE=1 SV=1
Score = 135 bits (340), Expect = 3e-30, Method: Compositional matrix adjust.
Identities = 69/112 (61%), Positives = 79/112 (70%), Gaps = 9/112 (8%)
Query: 4 LVFLFAIASLSVAQQ--------YVKDPKEAAILSEKRYLSNNGQFGSAYTQEDGVQFTE 55
+VF F I ++ QQ Y DPK AAIL E RYLS NG FG+AY QEDG+ F E
Sbjct: 1 MVFAFVIGAVVCQQQEGGRRVPKYAGDPKTAAILQEARYLSGNGAFGAAYQQEDGIDFKE 60
Query: 56 ESDQDGNRRGAYSYIDPSGQRRTITYTAGKNGFQASGDDIPVAPPAPPAPAP 107
E+D DGNRRG+YSYIDP+GQR+T+ Y AGKNGFQASGD IP A P P AP P
Sbjct: 61 ETDPDGNRRGSYSYIDPTGQRKTVNYVAGKNGFQASGDHIPTA-PQPVAPTP 111
Score = 114 (45.2 bits), Expect = 6.1e-07, P = 6.1e-07
Identities = 28/94 (29%), Positives = 45/94 (47%)
Query: 1 MEKLVFLFAIASLSVAQQYVK--DPKEAAILSEKRYLSNNGQFGSAYTQEDGVQFTEESD 58
M K V + A+ ++ A V D A +LS + +G F S+ +G++ D
Sbjct: 1 MFKFVMILAVVGVATALAPVSRSDDVHADVLSRSDDVRADG-FDSSLHTSNGIEQAASGD 59
Query: 59 QDGNRRGAYSYIDPSGQRRTITYTAGKNGFQASG 92
GN G + +I P G+ + Y A +NG+Q SG
Sbjct: 60 AHGNIHGNFGWISPEGEHVEVKYVANENGYQPSG 93
Score = 110 (43.8 bits), Expect = 1.6e-06, P = 1.6e-06
Identities = 29/98 (29%), Positives = 47/98 (47%)
Query: 1 MEKLVFLFAIASLSVAQQYV------KDPKEAAILSEKRYLSNNGQFGSAYTQEDGVQFT 54
M K V + A+ L+VA V + A +LS+ + +G F S+ +G++
Sbjct: 1 MFKFVMICAVLGLAVANPPVPHSLGRSEDVHADVLSQSDDVRADG-FDSSLHTSNGIEQA 59
Query: 55 EESDQDGNRRGAYSYIDPSGQRRTITYTAGKNGFQASG 92
D GN G + +I P G+ + Y A +NG+Q SG
Sbjct: 60 ASGDAHGNIHGNFGWISPEGEHVEVKYVANENGYQPSG 97
Score = 52.3 bits (126), Expect = 9e-11
Identities = 20/51 (39%), Positives = 28/51 (54%), Gaps = 3/51 (5%)
Query: 41 FGSAYTQEDGV---QFTEESDQDGNRRGAYSYIDPSGQRRTITYTAGKNGF 88
+ Y DG + D G +G+YSY+DP G+ RT+TY A +NGF
Sbjct: 1 YSFGYETSDGKTQEEGRGTEDDGGVVKGSYSYVDPDGKLRTVTYVADENGF 51
Many insect cuticular proteins include a 35-36 amino acid motif known as the R&R consensus. The extensive conservation of this region led to the suggestion that it functions to bind chitin. Provocatively, it has no sequence similarity to the well-known cysteine-containing chitin-binding domain found in chitinases and some peritrophic membrane proteins. Chitin binding has been shown experimentally for this region. Thus arthropods have two distinct classes of chitin binding proteins, those with the chitin-binding domain found in lectins, chitinases and peritrophic membranes (cysCBD) and those with the cuticular protein chitin-binding domain (non-cysCBD). Length = 51
The cuticular proteins seem to be specific to the type of cuticle (flexible or stiff) that occur at stages of the insect development. The proteins found in the flexible cuticle of larva and pupa of different insects share a conserved C-terminal section [] such a region is also found in the soft endocuticle of adults insects [] as well as in other cuticular proteins including in arachnids []. In addition, cuticular proteins share hydrophobic regions dominated by tetrapeptide repeats (A-A-P-A/V), which are presumed to be functionally important [, ]. Many insect cuticle proteins also include a 35-36 amino acid motif known as the R and R consensus. An extended form of this motif has been shown [] to bind chitin. It has no sequence similiarity to the cysteine-containing chitin-binding domain of chitinases and some peritrophic membrane proteins, suggesting that arthropods have two distinct classes of chitin-binding proteins, those with the chitin-binding domains found in lectins, chitinases and peritrophic membranes (cysCBD), and those with the type of chitin-binding domains found in cuticular proteins (non-cysCBD) []. The cuticle protein signature has been found in locust cuticle proteins 7 (LM-7), 8 (LM-8), 19 (LM-19) and endocuticle structural glycoprotein ABD-4; Hyalophora cecropia (Cecropia moth) cuticle proteins 12 and 66; Drosophila melanogaster (Fruit fly) larval cuticles proteins I, II, III and IV (LCP1 to LCP4); drosophila pupal cuticle proteins PCP, EDG-78E and EDG-84E; Manduca sexta (Tobacco hawkmoth) cuticle protein LCP-14; Tenebrio molitor (Yellow mealworm) cuticle proteins ACP-20, A1A, A2B and A3A; and Araneus diadematus (Spider) cuticle proteins ACP 11.9, ACP 12.4, ACP 12.6, ACP 15.5 and ACP 15.7.; GO: 0042302 structural constituent of cuticle
>COG5294 Uncharacterized protein conserved in bacteria [Function unknown]
>PF06004 DUF903: Bacterial protein of unknown function (DUF903); InterPro: IPR010305 This family consists of several small bacterial proteins several of which are classified as putative lipoproteins
This model represents a family of small (about 115 amino acids) uncharacterized proteins with N-terminal signal sequences, found exclusively in Gram-positive organisms. Most genomes that have any members of this family have at least two members.
>PF13511 DUF4124: Domain of unknown function (DUF4124)
>PF06286 Coleoptericin: Coleoptericin; InterPro: IPR009382 This family consists of several insect coleoptericin, acaloleptin, holotricin and rhinocerosin proteins which are all known to be antibacterial proteins []
