Terribly reduced optic lobes (trol) encodes the extracellular matrix component Perlecan, a secreted heparan sulfate proteoglycan. It regulates cell-signaling by multiple growth factors including those in the hedgehog, wingless/WNT, FGF, TGFbeta, EGF, and VEGF families, thus playing a role in many developmental patterning decisions.

Laminin B2 (LanB2) encodes a subunit of laminin, a heterotrimeric protein found in the extracellular matrix (ECM) and a major component of the basal lamina. Laminins interact with a variety of cell surface molecules such as integrin receptors and other secreted ECM components. It contributes to ECM organization, tissue adhesion, cell motility and developmental patterning.

LanB1 (LanB1) encodes a subunit of laminin, a heterotrimeric protein found in the extracellular matrix (ECM) and a major component of the basal lamina. Laminins interact with a variety of cell surface molecules such as integrin receptors and other secreted ECM components. It contributes to ECM organization, tissue adhesion, cell motility and developmental patterning.

Hemolectin, isoform A; Hemolectin (Hml) encodes a large multidomain protein produced by hemocytes and involved in the clotting reaction.

Collagen alpha-1(IV) chain; Collagen type IV alpha 1 (Col4a1) encodes a subunit of Collagen IV and a major component of basement membranes. It is required for muscle and epithelium integrity.

Beta-galactoside alpha-2,6-sialyltransferase; Sialyltransferase (SiaT) encodes an enzyme that functions in the sialylation pathway. It is required to produce sialylated glycans, which are important for nervous system function. It contributes to lifespan, locomotor abnormalities, response to heat and neuromuscular junction development; Belongs to the glycosyltransferase 29 family.

Secreted protein, acidic, cysteine-rich (SPARC) encodes a small calcium and growth factor-binding secreted glycoprotein that is enriched in basement membranes. During cell competition, it is expressed in "loser" cells so they can avoid apoptosis mediated by the products of fwe and azot.

Laminin subunit alpha; Binding to cells via a high affinity receptor, laminin is thought to mediate the attachment, migration and organization of cells into tissues during embryonic development by interacting with other extracellular matrix components. Activates presynaptic signaling involving integrin alpha-PS3/beta-nu and Fak to suppress neuromuscular junction (NMJ) growth during larval development and during low crawling activity, but not during higher-crawling conditions. Mediates, together with integrin alpha-PS3/beta-nu, glutamate receptor-modulated NMJ growth.

Beta-1,3-galactosyltransferase brn; Neurogenic protein essential for the development and maintenance of epithelial structure. Required in the germline for establishing the follicular epithelium and for determining the dorsal- ventral polarity. Collaborates with Notch on the apical surface of follicle cells to mediate germline-follicle cell adhesion. Brn has a role in chorion formation.