SLC44A4 and malaria: Finally, A. gambiae CTLD-S genes CTL4 and CTLMA2, whose protein products are known to heterodimerize as a part of the humoral immune response against gram negative bacteria, while also inhibiting melanization to the benefit of malaria parasites [34,35], group most closely with CTLD-S protein AAEL014382 (CTLMA14; mosGCTL-24), albeit with weak support (23%).