6HK2
Crystal structure of ferric R-state human methemoglobin bound to maleimide-deferoxamine bifunctional chelator (DFO)
Functional Information from GO Data
Chain | GOid | namespace | contents |
A | 0004601 | molecular_function | peroxidase activity |
A | 0005344 | molecular_function | oxygen carrier activity |
A | 0005506 | molecular_function | iron ion binding |
A | 0005515 | molecular_function | protein binding |
A | 0005576 | cellular_component | extracellular region |
A | 0005615 | cellular_component | extracellular space |
A | 0005829 | cellular_component | cytosol |
A | 0005833 | cellular_component | hemoglobin complex |
A | 0015670 | biological_process | carbon dioxide transport |
A | 0015671 | biological_process | oxygen transport |
A | 0016020 | cellular_component | membrane |
A | 0019825 | molecular_function | oxygen binding |
A | 0020037 | molecular_function | heme binding |
A | 0030185 | biological_process | nitric oxide transport |
A | 0031720 | molecular_function | haptoglobin binding |
A | 0031838 | cellular_component | haptoglobin-hemoglobin complex |
A | 0042542 | biological_process | response to hydrogen peroxide |
A | 0042744 | biological_process | hydrogen peroxide catabolic process |
A | 0043177 | molecular_function | organic acid binding |
A | 0046872 | molecular_function | metal ion binding |
A | 0070062 | cellular_component | extracellular exosome |
A | 0071682 | cellular_component | endocytic vesicle lumen |
A | 0072562 | cellular_component | blood microparticle |
A | 0098869 | biological_process | cellular oxidant detoxification |
B | 0004601 | molecular_function | peroxidase activity |
B | 0005344 | molecular_function | oxygen carrier activity |
B | 0005515 | molecular_function | protein binding |
B | 0005576 | cellular_component | extracellular region |
B | 0005615 | cellular_component | extracellular space |
B | 0005829 | cellular_component | cytosol |
B | 0005833 | cellular_component | hemoglobin complex |
B | 0008217 | biological_process | regulation of blood pressure |
B | 0015670 | biological_process | carbon dioxide transport |
B | 0015671 | biological_process | oxygen transport |
B | 0019825 | molecular_function | oxygen binding |
B | 0020037 | molecular_function | heme binding |
B | 0030185 | biological_process | nitric oxide transport |
B | 0030492 | molecular_function | hemoglobin binding |
B | 0031720 | molecular_function | haptoglobin binding |
B | 0031721 | molecular_function | hemoglobin alpha binding |
B | 0031838 | cellular_component | haptoglobin-hemoglobin complex |
B | 0042542 | biological_process | response to hydrogen peroxide |
B | 0042744 | biological_process | hydrogen peroxide catabolic process |
B | 0043177 | molecular_function | organic acid binding |
B | 0045429 | biological_process | positive regulation of nitric oxide biosynthetic process |
B | 0046872 | molecular_function | metal ion binding |
B | 0070062 | cellular_component | extracellular exosome |
B | 0070293 | biological_process | renal absorption |
B | 0070527 | biological_process | platelet aggregation |
B | 0071682 | cellular_component | endocytic vesicle lumen |
B | 0072562 | cellular_component | blood microparticle |
B | 0097746 | biological_process | blood vessel diameter maintenance |
B | 0098869 | biological_process | cellular oxidant detoxification |
B | 1904724 | cellular_component | tertiary granule lumen |
B | 1904813 | cellular_component | ficolin-1-rich granule lumen |
C | 0004601 | molecular_function | peroxidase activity |
C | 0005344 | molecular_function | oxygen carrier activity |
C | 0005506 | molecular_function | iron ion binding |
C | 0005515 | molecular_function | protein binding |
C | 0005576 | cellular_component | extracellular region |
C | 0005615 | cellular_component | extracellular space |
C | 0005829 | cellular_component | cytosol |
C | 0005833 | cellular_component | hemoglobin complex |
C | 0015670 | biological_process | carbon dioxide transport |
C | 0015671 | biological_process | oxygen transport |
C | 0016020 | cellular_component | membrane |
C | 0019825 | molecular_function | oxygen binding |
C | 0020037 | molecular_function | heme binding |
C | 0030185 | biological_process | nitric oxide transport |
C | 0031720 | molecular_function | haptoglobin binding |
C | 0031838 | cellular_component | haptoglobin-hemoglobin complex |
C | 0042542 | biological_process | response to hydrogen peroxide |
C | 0042744 | biological_process | hydrogen peroxide catabolic process |
C | 0043177 | molecular_function | organic acid binding |
C | 0046872 | molecular_function | metal ion binding |
C | 0070062 | cellular_component | extracellular exosome |
C | 0071682 | cellular_component | endocytic vesicle lumen |
C | 0072562 | cellular_component | blood microparticle |
C | 0098869 | biological_process | cellular oxidant detoxification |
D | 0004601 | molecular_function | peroxidase activity |
D | 0005344 | molecular_function | oxygen carrier activity |
D | 0005515 | molecular_function | protein binding |
D | 0005576 | cellular_component | extracellular region |
D | 0005615 | cellular_component | extracellular space |
D | 0005829 | cellular_component | cytosol |
D | 0005833 | cellular_component | hemoglobin complex |
D | 0008217 | biological_process | regulation of blood pressure |
D | 0015670 | biological_process | carbon dioxide transport |
D | 0015671 | biological_process | oxygen transport |
D | 0019825 | molecular_function | oxygen binding |
D | 0020037 | molecular_function | heme binding |
D | 0030185 | biological_process | nitric oxide transport |
D | 0030492 | molecular_function | hemoglobin binding |
D | 0031720 | molecular_function | haptoglobin binding |
D | 0031721 | molecular_function | hemoglobin alpha binding |
D | 0031838 | cellular_component | haptoglobin-hemoglobin complex |
D | 0042542 | biological_process | response to hydrogen peroxide |
D | 0042744 | biological_process | hydrogen peroxide catabolic process |
D | 0043177 | molecular_function | organic acid binding |
D | 0045429 | biological_process | positive regulation of nitric oxide biosynthetic process |
D | 0046872 | molecular_function | metal ion binding |
D | 0070062 | cellular_component | extracellular exosome |
D | 0070293 | biological_process | renal absorption |
D | 0070527 | biological_process | platelet aggregation |
D | 0071682 | cellular_component | endocytic vesicle lumen |
D | 0072562 | cellular_component | blood microparticle |
D | 0097746 | biological_process | blood vessel diameter maintenance |
D | 0098869 | biological_process | cellular oxidant detoxification |
D | 1904724 | cellular_component | tertiary granule lumen |
D | 1904813 | cellular_component | ficolin-1-rich granule lumen |
Functional Information from PDB Data
site_id | AC1 |
Number of Residues | 21 |
Details | binding site for residue HEM A 201 |
Chain | Residue |
A | TYR42 |
A | VAL93 |
A | ASN97 |
A | PHE98 |
A | LEU101 |
A | VAL132 |
A | LEU136 |
A | OXY202 |
A | HOH301 |
A | HOH314 |
A | HOH333 |
A | PHE43 |
A | HOH359 |
A | HOH385 |
A | PHE46 |
A | HIS58 |
A | LYS61 |
A | LEU83 |
A | LEU86 |
A | HIS87 |
A | LEU91 |
site_id | AC2 |
Number of Residues | 5 |
Details | binding site for residue OXY A 202 |
Chain | Residue |
A | PHE43 |
A | HIS58 |
A | VAL62 |
A | HEM201 |
A | HOH301 |
site_id | AC3 |
Number of Residues | 5 |
Details | binding site for residue SO4 A 203 |
Chain | Residue |
A | HIS89 |
A | ARG92 |
A | HOH326 |
A | HOH334 |
C | HIS72 |
site_id | AC4 |
Number of Residues | 21 |
Details | binding site for residue HEM B 201 |
Chain | Residue |
B | PHE41 |
B | PHE42 |
B | HIS63 |
B | ALA70 |
B | LEU88 |
B | HIS92 |
B | LEU96 |
B | ASN102 |
B | PHE103 |
B | LEU141 |
B | HOH333 |
B | HOH343 |
B | HOH345 |
B | HOH352 |
B | HOH354 |
B | HOH358 |
B | HOH379 |
B | HOH387 |
B | HOH389 |
D | PRO5 |
D | LYS8 |
site_id | AC5 |
Number of Residues | 6 |
Details | binding site for residue G7Z B 202 |
Chain | Residue |
B | CYS93 |
B | ASP94 |
B | LYS144 |
B | TYR145 |
B | HIS146 |
D | HIS2 |
site_id | AC6 |
Number of Residues | 6 |
Details | binding site for residue SO4 B 203 |
Chain | Residue |
B | ASN19 |
B | GLU22 |
B | HOH375 |
B | HOH393 |
C | HIS112 |
C | HOH336 |
site_id | AC7 |
Number of Residues | 7 |
Details | binding site for residue SO4 B 204 |
Chain | Residue |
B | LYS82 |
B | ASN139 |
B | HIS143 |
B | HIS146 |
B | HOH402 |
D | LYS82 |
D | ASN139 |
site_id | AC8 |
Number of Residues | 6 |
Details | binding site for residue SO4 B 205 |
Chain | Residue |
A | HIS112 |
B | LYS120 |
B | HOH306 |
B | HOH308 |
B | HOH336 |
B | HOH409 |
site_id | AC9 |
Number of Residues | 8 |
Details | binding site for residue SO4 B 206 |
Chain | Residue |
B | GLU26 |
B | HIS116 |
B | HIS117 |
B | HOH304 |
B | HOH362 |
B | HOH404 |
C | LYS16 |
C | HOH324 |
site_id | AD1 |
Number of Residues | 18 |
Details | binding site for residue HEM C 201 |
Chain | Residue |
C | HOH320 |
C | HOH328 |
C | HOH358 |
C | HOH380 |
C | LYS7 |
C | TYR42 |
C | PHE43 |
C | HIS45 |
C | HIS58 |
C | LYS61 |
C | LEU86 |
C | HIS87 |
C | LEU91 |
C | VAL93 |
C | ASN97 |
C | PHE98 |
C | LEU101 |
C | LEU136 |
site_id | AD2 |
Number of Residues | 4 |
Details | binding site for residue SO4 C 202 |
Chain | Residue |
A | LYS99 |
A | HOH399 |
C | LYS99 |
C | HOH301 |
site_id | AD3 |
Number of Residues | 4 |
Details | binding site for residue SO4 C 203 |
Chain | Residue |
B | PRO36 |
C | HIS89 |
C | ARG92 |
C | HOH309 |
site_id | AD4 |
Number of Residues | 13 |
Details | binding site for residue HEM D 201 |
Chain | Residue |
B | LYS8 |
D | PHE41 |
D | PHE42 |
D | HIS63 |
D | LYS66 |
D | LEU88 |
D | HIS92 |
D | LEU96 |
D | ASN102 |
D | PHE103 |
D | LEU141 |
D | HOH334 |
D | HOH351 |
site_id | AD5 |
Number of Residues | 12 |
Details | binding site for Di-peptide G7Z D 202 and CYS D 93 |
Chain | Residue |
B | HIS2 |
B | LYS132 |
D | SER89 |
D | GLU90 |
D | LEU91 |
D | HIS92 |
D | ASP94 |
D | LYS95 |
D | HIS97 |
D | LYS144 |
D | TYR145 |
D | HIS146 |
site_id | AD6 |
Number of Residues | 12 |
Details | binding site for Di-peptide G7Z D 202 and CYS D 93 |
Chain | Residue |
B | HIS2 |
B | LYS132 |
D | SER89 |
D | GLU90 |
D | LEU91 |
D | HIS92 |
D | ASP94 |
D | LYS95 |
D | HIS97 |
D | LYS144 |
D | TYR145 |
D | HIS146 |
Functional Information from SwissProt/UniProt
site_id | SWS_FT_FI1 |
Number of Residues | 8 |
Details | BINDING: |
Chain | Residue | Details |
B | VAL1 | |
B | HIS2 | |
B | LYS82 | |
B | HIS143 | |
D | VAL1 | |
D | HIS2 | |
D | LYS82 | |
D | HIS143 |
site_id | SWS_FT_FI2 |
Number of Residues | 2 |
Details | BINDING: distal binding residue |
Chain | Residue | Details |
B | HIS63 | |
D | HIS63 |
site_id | SWS_FT_FI3 |
Number of Residues | 2 |
Details | BINDING: proximal binding residue |
Chain | Residue | Details |
B | HIS92 | |
A | LEU91 | |
A | LEU106 | |
A | THR108 | |
A | VAL121 | |
A | SER133 | |
C | THR8 | |
C | ALA13 | |
C | TYR24 | |
C | LEU29 | |
C | HIS45 | |
D | HIS92 | |
C | ASP47 | |
C | SER52 | |
C | VAL55 | |
C | GLY59 | |
C | LEU91 | |
C | LEU106 | |
C | THR108 | |
C | VAL121 | |
C | SER133 | |
A | TYR24 | |
A | LEU29 | |
A | HIS45 | |
A | ASP47 | |
A | SER52 | |
A | VAL55 | |
A | GLY59 |
site_id | SWS_FT_FI4 |
Number of Residues | 38 |
Details | SITE: (Microbial infection) Cleavage; by N.americanus apr-2 => ECO:0000269|PubMed:12552433 |
Chain | Residue | Details |
B | GLU7 | |
B | GLY74 | |
B | THR84 | |
B | HIS92 | |
B | ARG104 | |
B | LEU110 | |
B | GLY119 | |
B | PHE122 | |
B | ALA128 | |
B | ALA140 | |
B | LYS144 | |
B | GLY25 | |
D | GLU7 | |
D | GLY25 | |
D | GLY29 | |
D | TYR35 | |
D | TRP37 | |
D | PHE45 | |
D | ASP52 | |
D | GLY56 | |
D | PHE71 | |
D | GLY74 | |
B | GLY29 | |
D | THR84 | |
D | HIS92 | |
D | ARG104 | |
D | LEU110 | |
D | GLY119 | |
D | PHE122 | |
D | ALA128 | |
D | ALA140 | |
D | LYS144 | |
B | TYR35 | |
B | TRP37 | |
B | PHE45 | |
B | ASP52 | |
B | GLY56 | |
B | PHE71 |
site_id | SWS_FT_FI5 |
Number of Residues | 6 |
Details | SITE: Not glycated => ECO:0000269|PubMed:7358733 |
Chain | Residue | Details |
B | LYS59 | |
B | LYS82 | |
B | LYS95 | |
D | LYS59 | |
D | LYS82 | |
D | LYS95 |
site_id | SWS_FT_FI6 |
Number of Residues | 2 |
Details | MOD_RES: N-pyruvate 2-iminyl-valine; in Hb A1b |
Chain | Residue | Details |
B | VAL1 | |
D | VAL1 | |
A | LYS40 | |
C | LYS7 | |
C | LYS16 | |
C | LYS40 |
site_id | SWS_FT_FI7 |
Number of Residues | 4 |
Details | MOD_RES: Phosphoserine => ECO:0007744|PubMed:24275569 |
Chain | Residue | Details |
B | SER9 | |
B | SER44 | |
D | SER9 | |
D | SER44 |
site_id | SWS_FT_FI8 |
Number of Residues | 6 |
Details | MOD_RES: Phosphothreonine => ECO:0007744|PubMed:24275569 |
Chain | Residue | Details |
B | THR12 | |
B | THR50 | |
B | THR87 | |
D | THR12 | |
D | THR50 | |
D | THR87 |
site_id | SWS_FT_FI9 |
Number of Residues | 4 |
Details | MOD_RES: N6-acetyllysine => ECO:0000269|PubMed:4531009 |
Chain | Residue | Details |
B | LYS59 | |
B | LYS82 | |
D | LYS59 | |
D | LYS82 |
site_id | SWS_FT_FI10 |
Number of Residues | 2 |
Details | MOD_RES: S-nitrosocysteine => ECO:0000269|PubMed:8637569, ECO:0000269|PubMed:9843411 |
Chain | Residue | Details |
B | CYS93 | |
D | CYS93 | |
A | SER131 | |
A | SER138 | |
C | SER102 | |
C | SER124 | |
C | SER131 | |
C | SER138 |
site_id | SWS_FT_FI11 |
Number of Residues | 2 |
Details | MOD_RES: N6-acetyllysine; alternate => ECO:0000269|PubMed:4531009 |
Chain | Residue | Details |
B | LYS144 | |
D | LYS144 | |
A | THR137 | |
C | THR108 | |
C | THR134 | |
C | THR137 |
site_id | SWS_FT_FI12 |
Number of Residues | 2 |
Details | CARBOHYD: N-linked (Glc) (glycation) valine; in Hb A1c => ECO:0000269|PubMed:635569 |
Chain | Residue | Details |
B | VAL1 | |
D | VAL1 | |
A | LYS40 | |
C | LYS7 | |
C | LYS16 | |
C | LYS40 |
site_id | SWS_FT_FI13 |
Number of Residues | 8 |
Details | CARBOHYD: N-linked (Glc) (glycation) lysine => ECO:0000269|PubMed:7358733 |
Chain | Residue | Details |
B | LYS8 | |
B | LYS17 | |
B | LYS66 | |
B | LYS120 | |
D | LYS8 | |
D | LYS17 | |
D | LYS66 | |
D | LYS120 |
site_id | SWS_FT_FI14 |
Number of Residues | 2 |
Details | CARBOHYD: N-linked (Glc) (glycation) lysine; alternate => ECO:0000269|PubMed:7358733 |
Chain | Residue | Details |
B | LYS144 | |
D | LYS144 |