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2.A.108.2.3
The acid-induced, low pH, ferrous iron (Fe2+) uptake transporter, EfeUOB (YcdN); cryptic in E. coli K12 (Cao et al. 2007; Grosse et al., 2006)

Accession Number:P31545
Protein Name:EfeB
Length:423
Molecular Weight:46754.00
Species:Escherichia coli (strain K12) [83333]
Location1 / Topology2 / Orientation3: Periplasm1
Substrate iron(2+)

Cross database links:

RefSeq: AP_001648.1    NP_415538.1   
Entrez Gene ID: 946500   
Pfam: PF04261   
BioCyc: EcoCyc:EG11735-MONOMER    ECOL168927:B1019-MONOMER    MetaCyc:EG11735-MONOMER   
KEGG: ecj:JW1004    eco:b1019   

Gene Ontology

GO:0005737 C:cytoplasm
GO:0042597 C:periplasmic space
GO:0005506 F:iron ion binding
GO:0016675 F:oxidoreductase activity, acting on heme gro...
GO:0004601 F:peroxidase activity
GO:0015684 P:ferrous iron transport
GO:0033212 P:iron assimilation
GO:0055114 P:oxidation reduction

References (6)

[1] “A 718-kb DNA sequence of the Escherichia coli K-12 genome corresponding to the 12.7-28.0 min region on the linkage map.”  Oshima T.et.al.   8905232
[2] “The complete genome sequence of Escherichia coli K-12.”  Blattner F.R.et.al.   9278503
[3] “Highly accurate genome sequences of Escherichia coli K-12 strains MG1655 and W3110.”  Hayashi K.et.al.   16738553
[4] “Molecular analysis of the phoH gene, belonging to the phosphate regulon in Escherichia coli.”  Kim S.-K.et.al.   8444794
[5] “YcdB from Escherichia coli reveals a novel class of Tat-dependently translocated hemoproteins.”  Sturm A.et.al.   16551627
[6] “Export pathway selectivity of Escherichia coli twin arginine translocation signal peptides.”  Tullman-Ercek D.et.al.   17218314
Structure:
2WX6   2WX7   2Y4D   2Y4E   2Y4F     

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MQYKDENGVN EPSRRRLLKV IGALALAGSC PVAHAQKTQS APGTLSPDAR NEKQPFYGEH 
61:	QAGILTPQQA AMMLVAFDVL ASDKADLERL FRLLTQRFAF LTQGGAAPET PNPRLPPLDS 
121:	GILGGYIAPD NLTITLSVGH SLFDERFGLA PQMPKKLQKM TRFPNDSLDA ALCHGDVLLQ 
181:	ICANTQDTVI HALRDIIKHT PDLLSVRWKR EGFISDHAAR SKGKETPINL LGFKDGTANP 
241:	DSQNDKLMQK VVWVTADQQE PAWTIGGSYQ AVRLIQFRVE FWDRTPLKEQ QTIFGRDKQT 
301:	GAPLGMQHEH DVPDYASDPE GKVIALDSHI RLANPRTAES ESSLMLRRGY SYSLGVTNSG 
361:	QLDMGLLFVC YQHDLEKGFL TVQKRLNGEA LEEYVKPIGG GYFFALPGVK DANDYFGSAL 
421:	LRV