Human DNA polymerase eta - DNA ternary complex: AT crystal at pH 7.2 (Na+ HEPES) with 1 Ca2+ ion

Watching DNA polymerase eta make a phosphodiester bond

DNA (5'-D(*CP*AP*TP*TP*AP*TP*GP*AP*CP*GP*CP*T)-3')

RAD30 homolog A, Xeroderma pigmentosum variant type protein

GPHMATGQDRVVALVDMDCFFVQVEQRQNPHLRNKPCAVVQYKSWKGGGIIAVSYEARAFGVTRSMWADDAKKLCPDLLL
AQVRESRGKANLTKYREASVEVMEIMSRFAVIERASIDEAYVDLTSAVQERLQKLQGQPISADLLPSTYIEGLPQGPTTA
EETVQKEGMRKQGLFQWLDSLQIDNLTSPDLQLTVGAVIVEEMRAAIERETGFQCSAGISHNKVLAKLACGLNKPNRQTL
VSHGSVPQLFSQMPIRKIRSLGGKLGASVIEILGIEYMGELTQFTESQLQSHFGEKNGSWLYAMCRGIEHDPVKPRQLPK
TIGCSKNFPGKTALATREQVQWWLLQLAQELEERLTKDRNDNDRVATQLVVSIRVQGDKRLSSLRRCCALTRYDAHKMSH
DAFTVIKNCNTSGIQTEWSPPLTMLFLCATKFSAS

0.1M MES, 6-17%(W/V) PEG 2K-MME, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

GLU A 116 HAS THE FOLLOWING ALTERNATE CONFIGURATION. ALTERNATE A HAS GLU 116 (OCCUPANCY 0.20), ALTERNATE B HAS GLU 116 (OCCUPANCY 0.80) + NA 501.

MATGQDRVVALVDMDCFFVQVEQRQNPHLRNKPCAVVQYKSWKGGGIIAVSYEARAFGVTRSMWADDAKKLCPDLLLAQV
RESRGKANLTKYREASVEVMEIMSRFAVIERASIDEAYVDLTSAVQERLQKLQGQPISADLLPSTYIEGLPQGPTTAEET
VQKEGMRKQGLFQWLDSLQIDNLTSPDLQLTVGAVIVEEMRAAIERETGFQCSAGISHNKVLAKLACGLNKPNRQTLVSH
GSVPQLFSQMPIRKIRSLGGKLGASVIEILGIEYMGELTQFTESQLQSHFGEKNGSWLYAMCRGIEHDPVKPRQLPKTIG
CSKNFPGKTALATREQVQWWLLQLAQELEERLTKDRNDNDRVATQLVVSIRVQGDKRLSSLRRCCALTRYDAHKMSHDAF
TVIKNCNTSGIQTEWSPPLTMLFLCATKFSAS