Many structure models of HK97 proheads and capsids have been deposited to the PDB.
one of the best ways to rapidly view and analyze these capsid structures is to use the ViperDB, or VIrus Particle ExplorR.

HK97 PDB entries
1OHG BACTERIOPHAGE HK97 MATURE EMPTY CAPSID (refined) 3.45 Angstroms
2FRP BACTERIOPHAGE HK97 EXPANSION INTERMEDIATE IV7.50 Angstroms
2FS3 BACTERIOPHAGE HK97 K169Y HEAD I 4.20 Angstroms
2FSY BACTERIOPHAGE HK97 PEPSIN-TREATED EXPANSION INTERMEDIATE IV 3.80 Angstroms
2FT1 BACTERIOPHAGE HK97 HEAD II (new) 3.90 Angstroms
3E8K Crystal structure of HK97 Prohead II (truncated mcp used) 3.65 Angstroms
2FTE BACTERIOPHAGE HK97 EXPANSION INTERMEDIATE IV PSEUDO-ATOMIC CRYO-EM Model
1IF0 BACTERIOPHAGE HK97 PROCAPSID (PROHEAD II) PSEUDO-ATOMIC CRYO-EM Model
demoted
1FH6 BACTERIOPHAGE HK97 MATURE EMPTY CAPSID obsolete replaced by 1OHG3.60 Angstroms
2GP1 BACTERIOPHAGE HK97 Prohead II crystal structure obsolete replaced by 3E8K 5.20 Angstroms

There are also a number of structurally related entries

1YUE BACTERIOPHAGE T4 capsid vertex protein gp24 2.90 Angstroms
2E0Z Virus-like particle from Pyrococcus furiosus 3.60 Angstroms
3DKY CRYSTAL STRUCTURE OF THERMOTOGA MARITIMA ENCAPSULIN 3.10 Angstroms
1YXN BACTERIOPHAGE Phi29 Fiberless Isometric Variant PSEUDO-ATOMIC CRYO-EM Model
3BQW Crystal structure of the putative capsid protein of prophage (E.coli CFT073) 2.20 Angstroms
3C5BDe Novo Model of Bacteriophage Epsilon 15 Major Capsid Protein GP7 PSEUDO-ATOMIC CRYO-EM Model

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