SEC61 BETA (suppressors of secretion-defective 61 Beta); protein transporter. Identical to Protein transport protein Sec61 subunit beta [Arabidopsis Thaliana] (GB:P38389); similar to sec61beta family protein [Arabidopsis thaliana] (TAIR:AT3G60540.2); similar to sec61beta family protein [Arabidopsis thaliana] (TAIR:AT3G60540.1); similar to unknown [Populus trichocarpa] (GB:ABK95043.1); contains InterPro domain Preprotein translocase Sec, Sec61-beta subunit, eukarya (InterPro:IPR016482); contains InterPro domain Preprotein translocase Sec, Sec61-beta subunit (InterPro:IPR005609)