The beta/Gcd7 subunit of eukaryotic translation initiation factor 2B (eIF2B), a guanine nucleotide exchange factor, is crucial for binding eIF2 in vivo.

真核翻译起始因子 2B (eIF2B) 的 β/Gcd7 亚基是一种鸟嘌呤核苷酸交换因子，对 eIF2 在体内的结合至关重要