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1.B.2.1.4
PorB dicarboxylate-specific porin (Kubo and Stephens 2001).  Mutations in porB can give rise to tetracycline resistance ().

Accession Number:Q46407
Protein Name:Major outer membrane porin
Length:404
Molecular Weight:43105.00
Species:Chlamydia muridarum [83560]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Cell outer membrane1 / Multi-pass membrane protein2
Substrate

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MKKLLKSVLA FAVLGSASSL HALPVGNPAE PSLMIDGILW EGFGGDPCDP CTTWCDAISL 
61:	RLGYYGDFVF DRVLKTDVNK QFEMGPVPTT TDTDAAADIT TSTPRENPAY GKHMQDAEMF 
121:	TNAAYMALNI WDRFDVFCTL GATSGYLKGN SASFNLVGLF GDGVANAANA IATVAADSLP 
181:	NVSLSQAVVE LYTDTAFAWS VGARAALWEC GCATLGASFQ YAQSKPKVEE LNVLCNAAQF 
241:	TINKPKGYVG KEFPLALTAG TDSATDTKDA SIDYHEWQAS LALSYRLNMF TPYIGVKWSR 
301:	ASFDADTIRI AQPKLAEAIL DVTTWNPTIA GAGTIADGTG AAATANGLAD TLQIVSLQLN 
361:	KMKSRKSCGL AIGTTIVDAD KYAVTVETRL IDERAAHVNA QFRF