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3.A.1.24.3
The methionine porter, AtmBDE (Sperandio et al., 2007)

Accession Number:Q8K8K9
Protein Name:AtmB
Length:281
Molecular Weight:31111.00
Species:Streptococcus pyogenes serotype M3 GN=atmB PE=4 SV=1 [301448]
Number of TMSs:1
Location1 / Topology2 / Orientation3: Membrane1 / Multi-pass membrane protein2
Substrate Methionine

Cross database links:

RefSeq: NP_664037.1    NP_802888.1   
Entrez Gene ID: 1008547    1066435   
Pfam: PF03180   
BioCyc: SPYO193567:SPS1626-MONOMER    SPYO198466:SPYM3_0233-MONOMER   
KEGG: spg:SpyM3_0233    sps:SPs1626   

References (2)

[1] “Genome sequence of a serotype M3 strain of group A Streptococcus: phage-encoded toxins, the high-virulence phenotype, and clone emergence.”  Beres S.B.et.al.   12122206
[2] “Genome sequence of an M3 strain of Streptococcus pyogenes reveals a large-scale genomic rearrangement in invasive strains and new insights into phage evolution.”  Nakagawa I.et.al.   12799345

External Searches:

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MSFKKWIGIV GIALASTVLV ACSEKQDDKN TLTIGVMTKT ESDQARWDKV EELLKKDNIT 
61:	LKYKEFTDYS QPNKAVANGE VDINAFQHYN FLNNWNKENK EHLVAIADTY ISPINLFSGT 
121:	SQDGKAKYKS VADLPNGAQI AVPNDATNES RALYVLQSAG LIKLDVSGDQ LATIANISEN 
181:	KKKLDIKELD ASQTARALVS ADAAVVNNSY AVPAKIDYKT SLFKEKADDN SKQWINIIAG 
241:	QKDWEKSEKA DAIKKLIKAY QTDEVKKVVE KTSNGIDVSV W