HSPA14 (heat shock protein family A member 14) is a member of the HSP70 chaperone family that plays essential roles in protein folding and cellular stress responses. As a component of the ribosome-associated complex (RAC), HSPA14 binds to nascent polypeptide chains during translation to maintain their folding-competent state, with its ATPase activity stimulated by DNAJC2 1. HSPA14 demonstrates significant involvement in cancer biology, with elevated expression associated with poor prognosis in breast cancer and contributing to tumorigenesis through modulation of immune responses and drug resistance 2. The protein also promotes cellular transformation and metastatic activity when overexpressed, working through the NBS1-HSF4b-HSPA4/HSPA14 axis to induce migration and invasion 3. In multiple myeloma, HSPA14 is associated with bortezomib resistance 4. Additionally, HSPA14 functions as an HIV replication inhibitor by interacting with transcriptional inhibitor HspBP1, with its expression inversely correlating with viral load in acute HIV infection 5. The gene serves as a stemness marker in neural precursor cells and shows differential expression patterns in various pathological conditions, including psoriasis-associated fatigue 6 and cervical cancer prognosis 7.