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1.A.56.1.7
The CtrlB Copper transporter (expressed during late embryonic and larval stages of development in response to copper deprivation (Zhou et al., 2003).

Accession Number:Q9VHS6
Protein Name:Copper transporter 1B aka Ctr1B aka RE11491p
Length:174
Molecular Weight:19777.00
Species:Drosophila melanogaster (Fruit fly) [7227]
Number of TMSs:3
Location1 / Topology2 / Orientation3: Cell membrane1 / Multi-pass membrane protein2
Substrate copper(1+)

Cross database links:

RefSeq: NP_649790.1   
Entrez Gene ID: 40989   
Pfam: PF04145   
KEGG: dme:Dmel_CG7459   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0015088 F:copper uptake transmembrane transporter act...
GO:0006825 P:copper ion transport
GO:0010038 P:response to metal ion

References (2)

[1] “Annotation of the Drosophila melanogaster euchromatic genome: a systematic review.”  Misra S.et.al.   12537572
[2] “The genome sequence of Drosophila melanogaster.”  Adams M.D.et.al.   10731132

External Searches:

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence 
1:	MDHGSDDSTS TAKSCPMIMV FHAGHCERIL WRGWVASTVT EFVLSALAIF LVSFLYEALK 
61:	FLRQQLARRE ARRASEQLAA EQRRKNEAPA AGGCCSEAPL AEPREQTYWQ RLFASSHIVQ 
121:	SLLNLLQIVI SYLLMLIFMT FNYWLCLAVI LGLGLGYFFF GWNKKNPDES ECCP