human_protein_name: interleukin-21 isoform 1 precursor
description: GAG-specific CD4+ T follicular helper (TFH) cells are detected at significantly higher levels in the lymph nodes compared with those of GP120-specific TFH cells and show preferential secretion of the helper cytokine IL-21
human_protein_sequence: MRSSPGNMERIVICLMVIFLGTLVHKSSSQGQDRHMIRMRQLIDIVDQLKNYVNDLVPEFLPAPEDVETNCEWSAFSCFQKAQLKSANTGNNERIINVSIKKLKRKPPSTNAGRRQKHRLTCPSCDSYEKKPPKEFLERFKSLLQKMIHQHLSSRTHGSEDS