https://www.ncbi.nlm.nih.gov/Structure/pdb/5DG8
5DG8: CRYSTAL STRUCTURE OF HUMAN DNA POLYMERASE ETA INSERTING dAMPNPP ACROSS A DNA TEMPLATE...
DNA (5'-D(*AP*GP*CP*GP*TP*CP*AP*T)-3')DNA (5'-D(*CP*AP*TP*(EDA)P*AP*TP*GP*AP*CP*GP*CP*T)-3')DNA polymerase...
https://www.ncbi.nlm.nih.gov/nuccore/7M7R_T
Chain T, Human DNA Pol eta S113A with rA-ended primer and dAMPNPP - Nucleotide - NCBI