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3.A.5.4.1
Protein translocase with SecY (439 aas and 10 TMSs, P0A4H0), SecE (81 aas ande 1 C-terminal TMS, Q31QK1), SecG (79 aas and 2 TMSs, N-terminal and C-terminal TMSs, Q8GMT4), SecA (948 aas and 0 TMSs, Q5N2Q7), SecD (464 aas and 6 TMSs in a 1 + 3 + 2 TMS arrangement, Q31RZ5) SecF (314 aas and 6 TMSs in a 1 + 3 + 2 TMS arrangement, Q31RZ6), YidC (392 aas and probably 8 TMSs in a 2 + 2 + 2 + 2 TMS arrangement, Q31MS2).

Accession Number:Q31RZ6
Protein Name:Protein-export membrane protein SecF
Length:314
Molecular Weight:34512.00
Species:Synechococcus elongatus (strain PCC 7942 / FACHB-805) [1140]
Number of TMSs:6
Location1 / Topology2 / Orientation3: Cell inner membrane1 / Multi-pass membrane protein2
Substrate protein polypeptide chain

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Predict TMSs (Predict number of transmembrane segments)
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FASTA formatted sequence
1:	MTLQLTAQRR RWWWISAILV IVSIAGMAIS WLQFGGPVRP GLDFVGGTRL QLERDCTKAQ 
61:	CDRPLEAGAI REVLTSAGLE RSNVQVIGQE QQGFVISTGD LSPEARTQLQ NKLSEQFGPF 
121:	DPQQTQIDTV GPVLGQQLLS SGLLALLVSF AGILVYLNFR FQRDYALLAI LALFHDVFIT 
181:	AGVFAWLGIL AGYEADSLFI VALLTITGFS VNDTVVIYDR IRETNSLFPE DDIDEIVDLS 
241:	VNQTLGRSIN TTLTTLLPLI SIYIFGGATL QNFALALIVG FVLGAYSSIF IASTLLGWWR 
301:	KRTPQSPQPI NAET