Sequence alignment between 4zj0(A) and UniProt seq P50120 (RET2_HUMAN):

P50120 (RET2_HUMAN): Retinol-binding protein 2 from Homo sapiens
                 10        20        30        40        50        60        70        80        90       100       110       120       130    
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+----
UniProt: MTRDQNGTWEMESNENFEGYMKALDIDFATRKIAVRLTQTKVIDQDGDNFKTKTTSTFRNYDVDFTVGVEFDEYTKSLDNRHVKALVTWEGDVLVCVQKGEKENRGWKQWIEGDKLYLELTCGDQVCRQVFKKK
         ........................................X...................X...............................................X.........................
PDB seq: -TRDQNGTWEMESNENFEGYMKALDIDFATRKIAVRLTQTLVIDQDGDNFKTKTTSTFRNWDVDFTVGVEFDEYTKSLDNRHVKALVTWEGDVLVCVQKGEKENRGWKKWIEGDKLYLELTCGDQVCRQVFKKK
          ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
                  10        20        30        40        50        60        70        80        90       100       110       120       130