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3.A.1.114.1
Glycolipid exporter (under nitrogen control in heterocysts), DevABC-HgdD (Moslavac et al., 2007). Heterocyst envelope glycolipids (HGLs) function as an O2 diffusion barrier, being deposited over the heterocyst outer membrane, surrounded by an outermost heterocyst polysaccharide envelope. DevBCA and TolC form an ATP-driven efflux pump required for the export of HGLs across the Gram-negative cell wall (Staron et al., 2011). DevB, the MFP, must be hexameric to create a functional export complex.  This system is under NtcA and nitrogen control and is required for heterocyst development (Fiedler et al. 2001).

Accession Number:O50295
Protein Name:DevC
Length:385
Molecular Weight:43309.00
Species:Anabaena variabilis [1172]
Number of TMSs:6
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Multi-pass membrane protein2
Substrate glycolipid

Cross database links:

RefSeq: YP_324088.1   
Entrez Gene ID: 3679357   
Pfam: PF02687   

Gene Ontology

GO:0016021 C:integral to membrane
GO:0005886 C:plasma membrane

References (1)

[1] “Sequence and mutational analysis of the devBCA gene cluster encoding a putative ABC transporter in the cyanobacterium Anabaena variabilis ATCC 29413.”  Fiedler G.et.al.   9767151

External Searches:

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MNRKRIPLSW LQLTREKTRL AVALAGIAFA DILMFMQIGF RDALYYSNVR LHTSLQGDIV 
61:	LINKQSNAVL AMKPFSQRRL YKSLELPSVQ SVHPIYLDYS IWKNPYTGLT RSILVFGINP 
121:	ETNILNLAGV QENLDKLKLP DAVLFDRSSR PEYGPIAKNF EQGQSISAEV RRRRINVVGL 
181:	FTLGASFGAD GNLVTSDVNF LRLFPLRRQG LIDIGLVRLK PGVNPNTAVQ ELRSYLPDDI 
241:	NVLTKQEFID FERNYWASST AIGFIFTLGT IMGFIVGTVI VYQILYTEVA DHLSEYATLK 
301:	AIGYTQKYLL GVILQEALLL ACLGYLPGWV FAMVLYQTAR QATLLPVFMS YDRAITVLIL 
361:	TMIMCFVSGS IAVRKLRSAD PADIF