2026-09-02 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update DATABASE_REFERENCES citation citation_author _citation.journal_abbrev _citation.journal_volume _citation.page_first _citation.page_last _citation.pdbx_database_id_PubMed _citation.title _citation_author.identifier_ORCID REFINEMENT_DESCRIPTION chem_comp_atom chem_comp_bond citation em_3d_fitting_list em_admin pdbx_initial_refinement_model struct_ncs_dom_lim _citation.country _em_3d_fitting_list.accession_code _em_3d_fitting_list.initial_refinement_model_id _em_3d_fitting_list.source_name _em_3d_fitting_list.type _em_admin.last_update _struct_ncs_dom_lim.beg_auth_comp_id _struct_ncs_dom_lim.beg_label_asym_id _struct_ncs_dom_lim.beg_label_comp_id _struct_ncs_dom_lim.beg_label_seq_id _struct_ncs_dom_lim.end_auth_comp_id _struct_ncs_dom_lim.end_label_asym_id _struct_ncs_dom_lim.end_label_comp_id _struct_ncs_dom_lim.end_label_seq_id REMEDIATION REPOSITORY Metalloprotein remediation STRUCTURE_SUMMARY em_admin pdbx_entry_details pdbx_modification_feature pdbx_nonpoly_atom_coordination pdbx_nonpoly_atom_coordination_sphere pdbx_nonpoly_atom_coordination_sphere_order _em_admin.last_update _pdbx_entry_details.has_protein_modification PDBe PDBe 2021-07-23 2021-08-25 2021-08-25 2026-09-02 Medical Research Council (MRC, United Kingdom) MC_U105184322 United Kingdom Human erythrocyte catalase cryoEM Chen S Li J Human erythrocyte catalase cryoEM, OXIDOREDUCTASE Chen S Li J Vinothkumar KR Henderson R Interaction of human erythrocyte catalase with air-water interface in cryoEM. Microscopy (Oxf) UK 71 i51 i59 2022 35275189 doi:10.1093/jmicro/dfab037 2050-5701 7p8w FULLOVERLAP EMDB EMD-13256 associated EM volume
Human erythrocyte catalase cryoEM
 Human erythrocyte catalase with cofactors Heme and NADPH Human erythrocyte catalase with cofactors Heme and NADPH 0 1
Purified protein
Homo sapiens 0.24 Catalase Homo sapiens erythrocyte 0.059836995999999996 4 Homo sapiens LEVO MADSRDPASDQMQHWKEQRAAQKADVLTTGAGNPVGDKLNVITVGPRGPLLVQDVVFTDEMAHFDRERIPERVVHAKGAG AFGYFEVTHDITKYSKAKVFEHIGKKTPIAVRFSTVAGESGSADTVRDPRGFAVKFYTEDGNWDLVGNNTPIFFIRDPIL FPSFIHSQKRNPQTHLKDPDMVWDFWSLRPESLHQVSFLFSDRGIPDGHRHMNGYGSHTFKLVNANGEAVYCKFHYKTDQ GIKNLSVEDAARLSQEDPDYGIRDLFNAIATGKYPSWTFYIQVMTFNQAETFPFNPFDLTKVWPHKDYPLIPVGKLVLNR NPVNYFAEVEQIAFDPSNMPPGIEASPDKMLQGRLFAYPDTHRHRLGPNYLHIPVNCPYRARVANYQRDGPMCMQDNQGG APNYYPNSFGAPEQQPSALEHSIQYSGEVRRFNTANDDNVTQVRAFYVNVLNEEQRKRLCENIAGHLKDAQIFIQKKAVK NFTEVHPDYGSHIQALLDKYNAEKPKNAIHTFVQSGSHLAAREKANL P04040 1.11.1.6 NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE 0.000745421 4 NDP PROTOPORPHYRIN IX CONTAINING FE 0.000616487 4 HEM water 1.8015e-05 1110 HOH singleParticle particle 40.0 7.4 0.15 NaCl Sodium chloride 10.0 C4H11NO3 Tris Chloride 0.2 NADPH NADPH Quantifoil R1.2/1.3 COPPER 300 CARBON HOLEY ARRAY 30.0 GLOW DISCHARGE AIR 0.015 ETHANE 100 277 HOMEMADE PLUNGER
Controlled environment plunge-freezer (Bellare et al, 1988; Technion University).
This sample was monodisperse.
 FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 75000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN 0.25 FEI FALCON III (4k x 4k) COUNTING 4096 4096 1 356 59.0 38.0 1 150000
Autopicked using RELION Laplacian operator
 RELION 3.1 NONE 1F4J
Resolution truncated to 60A.
 1 D2 FOURIER SPACE 2.2 FSC 0.143 CUT-OFF RELION 3.1 119169 MAXIMUM LIKELIHOOD RELION 3.1 MAXIMUM LIKELIHOOD RELION 3.1 25 RELION 3.1
10 2D classes were selected.
 emd_13256.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 128 128 128 0 0 0 128 128 128 137.0 137.0 137.0 90.0 90.0 90.0 X Y Z -0.17919458 0.5014312 0.004404877 0.030695038 1.0703125 1.0703125 1.0703125 0.055 AUTHOR Human erythrocyte catalase cryo-EM map from Chen et al., 2021, to be published. 1F4J 24-502 PDB experimental model 4BLC 5-23 PDB experimental model OTHER RECIPROCAL 40.0 emd_13256_msk_1.map