GTP-Binding Protein SAR1b

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** GTP-binding protein SAR1b (198 aa, ~22 kDa) is encoded by the human SAR1B gene. This protein plays a role in the regulation of vesicle transport from the endoplasmic reticulum to the Golgi.

**Synonyms:** - GTBPB - GTP-Binding Protein B - GTP-Binding Protein Sara - SAR1 Homolog B