Sequence alignment between 4xu4(A) and UniProt seq A1T557 (INSIG_MYCVP):

A1T557 (INSIG_MYCVP): INSIG protein homolog from Mycolicibacterium vanbaalenii (strain DSM 7251 / JCM 13017 / BCRC 16820 / KCTC 9966 / NRRL B-24157 / PYR-1) 
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200    
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+----
UniProt: MRLRISEAVVLFLLGAVAALIGDHSHVVTGTTVYHTDAVPFVWSSPFWFPILVGAATASLAELRLHLPAPRDGVTARQALGGVAAVVGTYVTTALVHAFPVVPVTALVCAAAAITWCVLGDGPGAACGVVIAVIGPAVEIALVQLGVFAYHPDSDGLFGVAPFLAPLYFAFGVVAALLGELAVARRPQLGPPVCDTVSRGPGAG
PDB seq: MRLRISEAVVLFLLGAVAALIGDHSHVVTGTTVYHTDAVPFVWSSPFWFPILVGAATASLAELRLHLPAPRDGVTARQALGGVAAVVGTYVTTALVHAFPVVPVTALVCAAAAITWCVLGDGPGAACGVVIAVIGPAVEIALVQLGVFAYHPDSDGLFGVAPFLAPLYFAFGVVAALLGELAVARRPQL---------------
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---------               
                 10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180