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3IA3

A cis-proline in alpha-hemoglobin stabilizing Protein directs the structural reorganization of alpha-hemoglobin

Functional Information from GO Data
ChainGOidnamespacecontents
A0006457biological_processprotein folding
A0030218biological_processerythrocyte differentiation
A0030492molecular_functionhemoglobin binding
A0050821biological_processprotein stabilization
B0004601molecular_functionperoxidase activity
B0005344molecular_functionoxygen carrier activity
B0005506molecular_functioniron ion binding
B0005515molecular_functionprotein binding
B0005576cellular_componentextracellular region
B0005615cellular_componentextracellular space
B0005829cellular_componentcytosol
B0005833cellular_componenthemoglobin complex
B0006954biological_processinflammatory response
B0015670biological_processcarbon dioxide transport
B0015671biological_processoxygen transport
B0016020cellular_componentmembrane
B0019825molecular_functionoxygen binding
B0020037molecular_functionheme binding
B0030185biological_processnitric oxide transport
B0031720molecular_functionhaptoglobin binding
B0031838cellular_componenthaptoglobin-hemoglobin complex
B0042542biological_processresponse to hydrogen peroxide
B0042744biological_processhydrogen peroxide catabolic process
B0046872molecular_functionmetal ion binding
B0048821biological_processerythrocyte development
B0070062cellular_componentextracellular exosome
B0071682cellular_componentendocytic vesicle lumen
B0072562cellular_componentblood microparticle
B0098869biological_processcellular oxidant detoxification
C0006457biological_processprotein folding
C0030218biological_processerythrocyte differentiation
C0030492molecular_functionhemoglobin binding
C0050821biological_processprotein stabilization
D0004601molecular_functionperoxidase activity
D0005344molecular_functionoxygen carrier activity
D0005506molecular_functioniron ion binding
D0005515molecular_functionprotein binding
D0005576cellular_componentextracellular region
D0005615cellular_componentextracellular space
D0005829cellular_componentcytosol
D0005833cellular_componenthemoglobin complex
D0006954biological_processinflammatory response
D0015670biological_processcarbon dioxide transport
D0015671biological_processoxygen transport
D0016020cellular_componentmembrane
D0019825molecular_functionoxygen binding
D0020037molecular_functionheme binding
D0030185biological_processnitric oxide transport
D0031720molecular_functionhaptoglobin binding
D0031838cellular_componenthaptoglobin-hemoglobin complex
D0042542biological_processresponse to hydrogen peroxide
D0042744biological_processhydrogen peroxide catabolic process
D0046872molecular_functionmetal ion binding
D0048821biological_processerythrocyte development
D0070062cellular_componentextracellular exosome
D0071682cellular_componentendocytic vesicle lumen
D0072562cellular_componentblood microparticle
D0098869biological_processcellular oxidant detoxification
Functional Information from PDB Data
site_idAC1
Number of Residues17
DetailsBINDING SITE FOR RESIDUE HEM B 201
ChainResidue
BPHE43
BVAL93
BASN97
BPHE98
BLEU101
BSER102
DPRO77
DASN78
DALA79
BHIS45
BPHE46
BHIS58
BLYS61
BVAL62
BALA65
BLEU83
BHIS87

site_idAC2
Number of Residues18
DetailsBINDING SITE FOR RESIDUE HEM D 201
ChainResidue
BMET76
BPRO77
BASN78
BALA79
DPHE43
DHIS45
DPHE46
DHIS58
DLYS61
DVAL62
DALA65
DLEU83
DHIS87
DVAL93
DASN97
DPHE98
DLEU101
DSER102

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues16
DetailsPeptide: {"description":"Hemopressin","featureId":"PRO_0000455882","evidences":[{"source":"PubMed","id":"18077343","evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00238","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsBinding site: {"description":"proximal binding residue","evidences":[{"source":"PROSITE-ProRule","id":"PRU00238","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues28
DetailsSite: {"description":"(Microbial infection) Cleavage; by N.americanus apr-2","evidences":[{"source":"PubMed","id":"12552433","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues10
DetailsSite: {"description":"Not glycated","evidences":[{"source":"PubMed","id":"7358733","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues6
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues6
DetailsModified residue: {"description":"N6-succinyllysine; alternate","evidences":[{"source":"UniProtKB","id":"P01942","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues2
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues2
DetailsModified residue: {"description":"N6-succinyllysine","evidences":[{"source":"UniProtKB","id":"P01942","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues2
DetailsModified residue: {"description":"Phosphotyrosine","evidences":[{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues6
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"P01942","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI12
Number of Residues4
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"UniProtKB","id":"P01942","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI13
Number of Residues6
DetailsGlycosylation: {"description":"N-linked (Glc) (glycation) lysine; alternate","evidences":[{"source":"PubMed","id":"7358733","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI14
Number of Residues2
DetailsGlycosylation: {"description":"N-linked (Glc) (glycation) lysine","evidences":[{"source":"PubMed","id":"7358733","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

246333

PDB entries from 2025-12-17

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