Structure of PDB 1t1n Chain A

Receptor sequence

>1t1nA (length=142) Species: 35730 (Trematomus newnesi)

SLSDKDKAAVRALWSKIGKSSDAIGNDALSRMIVVYPQTKIYFSHWPDVT
PGSPNIKAHGKKVMGGIALAVSKIDDLKTGLMELSEQHAYKLRVDPSNFK
ILNHCILVVISTMFPKEFTPEAHVSLDKFLSGVALALAERYR

3D structure

• PDB: 1t1n Crystal structure of Trematomus newnesi haemoglobin re-opens the root effect question.
• Chain: A
• Resolution: 2.2 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	HEM	A	Y42 F43 H45 W46 H59 K62 H88 L92 V94 N98 F99 L102 L137	Y42 F43 H45 W46 H59 K62 H88 L92 V94 N98 F99 L102 L137

Gene Ontology

Molecular Function

• GO:0004601 peroxidase activity
• GO:0005344 oxygen carrier activity
• GO:0005506 iron ion binding
• GO:0019825 oxygen binding
• GO:0020037 heme binding
• GO:0031720 haptoglobin binding
• GO:0043177 organic acid binding
• GO:0046872 metal ion binding

Biological Process

• GO:0015671 oxygen transport
• GO:0042744 hydrogen peroxide catabolic process
• GO:0098869 cellular oxidant detoxification

Cellular Component

• GO:0005833 hemoglobin complex
• GO:0031838 haptoglobin-hemoglobin complex
• GO:0072562 blood microparticle

External links

• PDB: RCSB:1t1n, PDBe:1t1n, PDBj:1t1n
• PDBsum: 1t1n
• PubMed: 10222199
• UniProt: P45718|HBA1_TRENE Hemoglobin subunit alpha-1 (Gene Name=hba1)