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3AQ5

Crystal structure of truncated hemoglobin from Tetrahymena pyriformis, Fe(II)-O2 form

Functional Information from GO Data
ChainGOidnamespacecontents
A0005344molecular_functionoxygen carrier activity
A0015671biological_processoxygen transport
A0019825molecular_functionoxygen binding
A0020037molecular_functionheme binding
A0046872molecular_functionmetal ion binding
B0005344molecular_functionoxygen carrier activity
B0015671biological_processoxygen transport
B0019825molecular_functionoxygen binding
B0020037molecular_functionheme binding
B0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues23
DetailsBINDING SITE FOR RESIDUE HEM A 144
ChainResidue
APHE37
ALYS67
AMET69
AHIS73
AMET76
ALEU78
AHIS82
APHE83
AILE86
AILE111
AMET118
APHE38
AOXY145
AHOH195
AHOH218
AHOH237
ATHR41
AGLN46
AGLN49
AGLN50
APHE53
ATYR64
AGLY66

site_idAC2
Number of Residues5
DetailsBINDING SITE FOR RESIDUE OXY A 145
ChainResidue
ATYR25
APHE38
AGLN46
AGLN50
AHEM144

site_idAC3
Number of Residues22
DetailsBINDING SITE FOR RESIDUE HEM B 144
ChainResidue
BPHE37
BPHE38
BTHR41
BGLN46
BGLN49
BGLN50
BPHE53
BTYR64
BGLY66
BLYS67
BMET69
BHIS73
BMET76
BLEU78
BHIS82
BPHE83
BILE86
BILE111
BMET118
BHOH143
BOXY145
BHOH179

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE OXY B 145
ChainResidue
BTYR25
BGLN46
BGLN50
BHEM144

Functional Information from PROSITE/UniProt
site_idPS01213
Number of Residues21
DetailsGLOBIN_FAM_2 Protozoan/cyanobacterial globins signature. FLtmllGGPnhYkGKn....MteaH
ChainResidueDetails
APHE53-HIS73

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsBinding site: {"description":"proximal binding residue","evidences":[{"evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

242500

PDB entries from 2025-10-01

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