🔑🔒🪲

#cell receptor #ligand binding #lock and key model #protein receptor #cell surface receptor

🇹🔑🔬

#t cell receptor #TCR #antigen recognition #cell surface receptor #immunology #adaptive immunity

✨➡️🔓🧬

#signal molecule #receptor binding #cell signaling #ligand #cell surface receptor #molecular communication #lock and key mechanism

🔬🔑🤝

#hla typing #tissue matching #immunology lab #cell surface receptor #compatibility testing #human leukocyte antigen