Structure of PDB 1po3 Chain A

Receptor sequence
>1po3A (length=647) Species: 562 (Escherichia coli) [Search protein sequence]
NDVFEHAGARDVIRREDFAKTGATTMREVLNRIPGVSAPENNGTGSHDLA
MNFGIRGLNPRLASRSTVLMDGIPVPFAPYGQPQLSLAPVSLGNMDAIDV
VRGGGAVRYGPQSVGGVVNFVTRAIPQDFGIEAGVEGQLSPTSSQNNPKE
THNLMVGGTADNGFGTALLYSGTRGSDWREHSATRIDDLMLKSKYAPDEV
HTFNSLLQYYDGEADMPGGLSRADYDADRWQSTRPYDRFWGRRKLASLGY
QFQPDSQHKFNIQGFYTQTLRSGYLEQGKRITLSPRNYWVRGIEPRYSQI
FMIGPSAHEVGVGYRYLNESTHEMRYYTATSSGQLPSGSSPYDRDTRSGT
EAHAWYLDDKIDIGNWTITPGMRFEHIESYQNNAITGTHEEVSYNAPLPA
LNVLYHLTDSWNLYANTEGSFGTVQYSQIGKAVQSGNVEPEKARTWELGT
RYDDGALTAEMGLFLINFNNQYDSNQTNDTVTARGKTRHTGLETQARYDL
GTLTPTLDNVSIYASYAYVNAEIREKGDTYGNLVPFSPKHKGTLGVDYKP
GNWTFNLNSDFQSSQFADNANTVKESADGSTGRIPGFMLWGARVAYDFGP
QMADLNLAFGVKNIFDQDYFIRSYDDNNKGIYAGQPRTLYMQGSLKF
3D structure
PDB1po3 Structural evidence for iron-free citrate and ferric citrate binding to the TonB-dependent outer membrane transporter FecA
ChainA
Resolution3.4 Å
3D
structure
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Enzymatic activity
Enzyme Commision number ?
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 FLC A R365 R380 R419 R438 Q570 R271 R286 R325 R344 Q476
BS02 FLC A Q178 S180 R380 S521 S568 Q570 Q84 S86 R286 S427 S474 Q476
Gene Ontology
Molecular Function
GO:0005515 protein binding
GO:0015343 siderophore-iron transmembrane transporter activity
GO:0038023 signaling receptor activity
Biological Process
GO:0006355 regulation of DNA-templated transcription
GO:0006826 iron ion transport
GO:0006879 intracellular iron ion homeostasis
GO:0015891 siderophore transport
GO:0023019 signal transduction involved in regulation of gene expression
GO:0033214 siderophore-dependent iron import into cell
GO:0044718 siderophore transmembrane transport
GO:1990641 response to iron ion starvation
Cellular Component
GO:0009279 cell outer membrane
GO:0016020 membrane
GO:0019867 outer membrane
GO:1902495 transmembrane transporter complex

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1po3, PDBe:1po3, PDBj:1po3
PDBsum1po3
PubMed12948487
UniProtP13036|FECA_ECOLI Fe(3+) dicitrate transport protein FecA (Gene Name=fecA)

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