Sequence alignment between 1k8b(A) and UniProt seq Q57562 (IF2B_METJA):

Q57562 (IF2B_METJA): Translation initiation factor 2 subunit beta from Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140   
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
UniProt: MSDLENIDYYDYKALLKRARSQIPDYVFQKDRFELPEIEILIEGNRTIIRNFRELAKAVNRDEEFFAKYLLKETGSAGNLEGGRLILQRRISPELLKSRINDFLREYVICRECGKPDTKIIKEGRVHLLKCMACGAIRPIRMI
PDB seq: --------------------------------------EILIEGNRTIIRNFRELAKAVNRDEEFFAKYLLKETGSAGNLEGGRLILQRR-----------------------------------------------------
                                               -+---------+---------+---------+---------+---------+                                                     
                                               40        50        60        70        80        90