SecReT4
TraB_F
TraB_F is a component of Tra_F T4SS. TraB_F is an inner membrane protein, and contains a coiled-coil domain, which is probably involved in multimerization, as well as a proline-rich domain, suggesting an extended structure

Proteins belonging to this kind of component are listed
(You can select < 50 proteins to perform sequence alignment by MUSCLE)
#ComponentProtein ID T4SS Accession Organism
1 TraB_F344201122Tra_FNC_015942Acidithiobacillus ferrivorans SS3
2 TraB_F218666296Tra_FNC_011761Acidithiobacillus ferrooxidans ATCC 23270
3 TraB_F121582485Tra_FNC_008765Acidovorax sp. JS42
4 TraB_F121593911Tra_FNC_008782Acidovorax sp. JS42
5 TraB_F184160061Tra_FNC_010606Acinetobacter baumannii ACICU
6 TraB_F242348007Tra_FNC_012885Aeromonas hydrophila plasmid pRA1 (NC_012885)
7 TraB_F145301412Tra_FNC_009350Aeromonas salmonicida subsp. salmonicida A449
8 TraB_F330827341Tra_FNC_015423Alicycliphilus denitrificans K601
9 TraB_F215778356Tra_FNC_011311Aliivibrio salmonicida LFI1238
10 TraB_F56479213Tra_FNC_006513Aromatoleum aromaticum EbN1
11 TraB_F58616257Tra_FNC_006823Aromatoleum aromaticum EbN1
12 TraB_F315500746Tra_FNC_014819Asticcacaulis excentricus CB 48 plasmid pASTEX02 (NC_014819)
13 TraB_F116687170Tra_FNC_008545Burkholderia cenocepacia HI2424
14 TraB_F206479971Tra_FNC_011003Burkholderia cenocepacia J2315
15 TraB_F330822126Tra_FNC_015377Burkholderia gladioli BSR3
16 TraB_F330818868Tra_FNC_015378Burkholderia gladioli BSR3
17 TraB_F238029015Tra_FNC_012725Burkholderia glumae BGR1
18 TraB_F238023428Tra_FNC_012720Burkholderia glumae BGR1
19 TraB_F161506559Tra_FNC_010070Burkholderia multivorans ATCC 17616
20 TraB_F189348780Tra_FNC_010802Burkholderia multivorans ATCC 17616
21 TraB_F330399520Tra_FNC_014723Burkholderia rhizoxinica HKI 454
22 TraB_F134288285Tra_FNC_009230Burkholderia vietnamiensis G4
23 TraB_F153952054Tra_FNC_009707Campylobacter jejuni subsp. doylei 269.97
24 TraB_F46447059Tra_FNC_005861Candidatus Protochlamydia amoebophila UWE25
25 TraB_F71907936Tra_FNC_007298Dechloromonas aromatica RCB
26 TraB_F71908263Tra_FNC_007298Dechloromonas aromatica RCB
27 TraB_F291286493Tra_FNC_013943Denitrovibrio acetiphilus DSM 12809
28 TraB_F345301653Tra_FNC_015963Enterobacter asburiae LF7a
29 TraB_F226807574Tra_FNC_012555Enterobacter cloacae plasmid pEC-IMP (NC_012555)
30 TraB_F226809884Tra_FNC_012556Enterobacter cloacae plasmid pEC-IMPQ (NC_012556)
31 TraB_F295697989Tra_FNC_014107Enterobacter cloacae subsp. cloacae ATCC 13047
32 TraB_F295698180Tra_FNC_014108Enterobacter cloacae subsp. cloacae ATCC 13047
33 TraB_F146284613Tra_FNC_009425Enterobacter sp. 638
34 TraB_F300713324Tra_FNC_014305Erwinia billingiae Eb661
35 TraB_F188535967Tra_FNC_010699Erwinia tasmaniensis Et1/99
36 TraB_F85373008Tra_FNC_007722Erythrobacter litoralis HTCC2594
37 TraB_F85373697Tra_FNC_007722Erythrobacter litoralis HTCC2594
38 TraB_F85375795Tra_FNC_007722Erythrobacter litoralis HTCC2594
39 TraB_F187736788Tra_FNC_010558Escherichia coli 1520 plasmid pIP1206 (NC_010558)
40 TraB_F188574142Tra_FNC_010719Escherichia coli 53638 plasmid p53638_226 (NC_010719)
41 TraB_F188574253Tra_FNC_010720Escherichia coli 53638 plasmid p53638_75 (NC_010720)
42 TraB_F157418116Tra_FNC_009837Escherichia coli APEC O1
43 TraB_F157412021Tra_FNC_009838Escherichia coli APEC O1
44 TraB_F298206448Tra_FNC_014232Escherichia coli ETEC 1392/75 plasmid p1081 (NC_014232)
45 TraB_F268507251Tra_FNC_013507Escherichia coli ETEC H10407 plasmid pEntH10407 (NC_013507)
46 TraB_F260751888Tra_FNC_013366Escherichia coli O111:H- str. 11128
47 TraB_F260752020Tra_FNC_013365Escherichia coli O111:H- str. 11128
48 TraB_F215276249Tra_FNC_011603Escherichia coli O127:H6 str. E2348/69
49 TraB_F260751973Tra_FNC_013362Escherichia coli O26:H11 str. 11368
50 TraB_F133756516Tra_FNC_009133Escherichia coli plasmid NR1 (NC_009133)
51 TraB_F32469984Tra_FNC_004998Escherichia coli plasmid p1658/97 (NC_004998)
52 TraB_F84060778Tra_FNC_007675Escherichia coli plasmid pAPEC-O2-ColV (NC_007675)
53 TraB_F58000366Tra_FNC_006671Escherichia coli plasmid pAPEC-O2-R (NC_006671)
54 TraB_F237809987Tra_FNC_012692Escherichia coli plasmid pAR060302 (NC_012692)
55 TraB_F41056984Tra_FNC_005327Escherichia coli plasmid pC15-1a (NC_005327)
56 TraB_F256855337Tra_FNC_013175Escherichia coli plasmid pEC14_114 (NC_013175)
57 TraB_F302595305Tra_FNC_014382Escherichia coli plasmid pEC_B24 (NC_014382)
58 TraB_F302595401Tra_FNC_014385Escherichia coli plasmid pEC_L46 (NC_014385)
59 TraB_F302595520Tra_FNC_014384Escherichia coli plasmid pEC_L8 (NC_014384)
60 TraB_F310286360Tra_FNC_014615Escherichia coli plasmid pETN48 (NC_014615)
61 TraB_F348589253Tra_FNC_016039Escherichia coli plasmid pHK17a (NC_016039)
62 TraB_F190014932Tra_FNC_010862Escherichia coli plasmid pMAR7 (NC_010862)
63 TraB_F219586098Tra_FNC_011812Escherichia coli plasmid pO26-L (NC_011812)
64 TraB_F116006883Tra_FNC_008460Escherichia coli plasmid pO86A1 (NC_008460)
65 TraB_F169546523Tra_FNC_010409Escherichia coli plasmid pVM01 (NC_010409)
66 TraB_F218534540Tra_FNC_011747Escherichia coli S88
67 TraB_F209916891Tra_FNC_011413Escherichia coli SE11
68 TraB_F170650812Tra_FNC_010488Escherichia coli SMS-3-5
69 TraB_F218692892Tra_FNC_011749Escherichia coli UMN026
70 TraB_F91206355Tra_FNC_007941Escherichia coli UTI89
71 TraB_F253801033Tra_FNC_012944Escherichia coli Vir68 plasmid pVir68 (NC_012944)
72 TraB_F189423389Tra_FNC_010814Geobacter lovleyi SZ
73 TraB_F324120169Tra_FNC_015154Klebsiella pneumoniae plasmid pc15-k (NC_015154)
74 TraB_F190410176Tra_FNC_010870Klebsiella pneumoniae plasmid pK29 (NC_010870)
75 TraB_F291289324Tra_FNC_013951Klebsiella pneumoniae plasmid pKF3-140 (NC_013951)
76 TraB_F270208450Tra_FNC_013542Klebsiella pneumoniae plasmid pKF3-70 (NC_013542)
77 TraB_F291288992Tra_FNC_013950Klebsiella pneumoniae plasmid pKF3-94 (NC_013950)
78 TraB_F300837053Tra_FNC_014312Klebsiella pneumoniae plasmid pKP048 (NC_014312)
79 TraB_F294496775Tra_FNC_014016Klebsiella pneumoniae plasmid pKpQIL (NC_014016)
80 TraB_F378976084Tra_FNC_016846Klebsiella pneumoniae subsp. pneumoniae HS11286
81 TraB_F152973700Tra_FNC_009650Klebsiella pneumoniae subsp. pneumoniae MGH 78578
82 TraB_F152973566Tra_FNC_009649Klebsiella pneumoniae subsp. pneumoniae MGH 78578
83 TraB_F308051523Tra_FNC_014544Legionella longbeachae NSW150
84 TraB_F289165182Tra_FNC_013861Legionella longbeachae NSW150
85 TraB_F54292925Tra_FNC_006366Legionella pneumophila str. Lens
86 TraB_F54295869Tra_FNC_006365Legionella pneumophila str. Paris
87 TraB_F52842303Tra_FNC_002942Legionella pneumophila subsp. pneumophila str. Philadelphia 1
88 TraB_F124262907Tra_FNC_008826Methylibium petroleiphilum PM1
89 TraB_F194098644Tra_FNC_011035Neisseria gonorrhoeae NCCP11945
90 TraB_F146275615Tra_FNC_009426Novosphingobium aromaticivorans DSM 12444
91 TraB_F87200175Tra_FNC_007794Novosphingobium aromaticivorans DSM 12444
92 TraB_F10956945Tra_FNC_002033Novosphingobium aromaticivorans plasmid pNL1 (NC_002033)
93 TraB_F189183005Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
94 TraB_F189184815Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
95 TraB_F189184726Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
96 TraB_F189184612Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
97 TraB_F189184613Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
98 TraB_F189184406Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
99 TraB_F189184407Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
100 TraB_F189184059Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
101 TraB_F189183391Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
102 TraB_F189183322Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
103 TraB_F189183124Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
104 TraB_F189183125Tra_FNC_010793Orientia tsutsugamushi str. Ikeda
105 TraB_F317053792Tra_FNC_014839Pantoea sp. At-9b plasmid pPAT9B02 (NC_014839)
106 TraB_F317052838Tra_FNC_014842Pantoea sp. At-9b plasmid pPAT9B05 (NC_014842)
107 TraB_F304319720Tra_FNC_014414Parvularcula bermudensis HTCC2503
108 TraB_F118578698Tra_FNC_008609Pelobacter propionicus DSM 2379
109 TraB_F118577381Tra_FNC_008607Pelobacter propionicus DSM 2379
110 TraB_F225685355Tra_FNC_012439Persephonella marina EX-H1
111 TraB_F118601951Tra_FNC_008613Photobacterium damselae subsp. piscicida plasmid pP91278 (NC_008613)
112 TraB_F118614689Tra_FNC_008612Photobacterium damselae subsp. piscicida plasmid pP99-018 (NC_008612)
113 TraB_F47104031Tra_FNC_005871Photobacterium profundum SS9
114 TraB_F9507791Tra_FNC_002483Plasmid F
115 TraB_F9507620Tra_FNC_002134Plasmid R100
116 TraB_F197286313Tra_FNC_010554Proteus mirabilis HI4320
117 TraB_F21233872Tra_FNC_003905Proteus vulgaris plasmid Rts1 (NC_003905)
118 TraB_F296100219Tra_FNC_014124Pseudomonas putida plasmid pDK1 (NC_014124)
119 TraB_F27228622Tra_FNC_004444Pseudomonas resinovorans plasmid pCAR1 (NC_004444)
120 TraB_F77404837Tra_FNC_007490Rhodobacter sphaeroides 2.4.1
121 TraB_F157827411Tra_FNC_009883Rickettsia bellii OSU 85-389
122 TraB_F91205249Tra_FNC_007940Rickettsia bellii RML369-C
123 TraB_F157964593Tra_FNC_009900Rickettsia massiliae MTU5
124 TraB_F237810175Tra_FNC_012693Salmonella enterica plasmid pAM04528 (NC_012693)
125 TraB_F160431931Tra_FNC_009981Salmonella enterica subsp. enterica serovar Choleraesuis plasmid pMAK1 (NC_009981)
126 TraB_F194446822Tra_FNC_011076Salmonella enterica subsp. enterica serovar Kentucky str. CVM29188 plasmid pCVM29188_146 (NC_011076)
127 TraB_F134047150Tra_FNC_009140Salmonella enterica subsp. enterica serovar Newport str. SL254
128 TraB_F261888761Tra_FNC_013437Salmonella enterica subsp. enterica serovar Typhimurium plasmid pSLT-BT (NC_013437)
129 TraB_F305696914Tra_FNC_014476Salmonella enterica subsp. enterica serovar Typhimurium plasmid pYT1 (NC_014476)
130 TraB_F17233447Tra_FNC_003277Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
131 TraB_F10957218Tra_FNC_002305Salmonella enterica subsp. enterica serovar Typhi plasmid R27 (NC_002305)
132 TraB_F18466487Tra_FNC_003384Salmonella enterica subsp. enterica serovar Typhi str. CT18
133 TraB_F38347837Tra_FNC_005211Serratia marcescens plasmid R478 (NC_005211)
134 TraB_F152998541Tra_FNC_009661Shewanella baltica OS185
135 TraB_F160873039Tra_FNC_009999Shewanella baltica OS195
136 TraB_F160872947Tra_FNC_009998Shewanella baltica OS195
137 TraB_F217980287Tra_FNC_011668Shewanella baltica OS223
138 TraB_F217975717Tra_FNC_011665Shewanella baltica OS223
139 TraB_F217975589Tra_FNC_011664Shewanella baltica OS223
140 TraB_F117676197Tra_FNC_008573Shewanella sp. ANA-3
141 TraB_F120597937Tra_FNC_008750Shewanella sp. W3-18-1
142 TraB_F283826886Tra_FNC_013727Shigella sonnei plasmid pEG356 (NC_013727)
143 TraB_F294023762Tra_FNC_014007Sphingobium japonicum UT26S
144 TraB_F113473802Tra_FNC_008308Sphingomonas sp. KA1 plasmid pCAR3 (NC_008308)
145 TraB_F148550804Tra_FNC_009507Sphingomonas wittichii RW1
146 TraB_F85859521Tra_FNC_007759Syntrophus aciditrophicus SB
147 TraB_F229608784Tra_FNC_012668Vibrio cholerae MJ-1236
148 TraB_F326326056Tra_FNC_015156Vibrio nigripulchritudo plasmid VIBNI_pA (NC_015156)
149 TraB_F187729881Tra_FNC_010614Vibrio tapetis plasmid pVT1 (NC_010614)
150 TraB_F27367061Tra_FNC_004460Vibrio vulnificus CMCP6
151 TraB_F153971620Tra_FNC_009702Vibrio vulnificus plasmid pC4602-1 (NC_009702)
152 TraB_F37595829Tra_FNC_005128Vibrio vulnificus YJ016
153 TraB_F169544334Tra_FNC_010377Yersinia enterocolitica plasmid pYE854 (NC_010377)
154 TraB_F134044917Tra_FNC_009141Yersinia pestis biovar Orientalis str. IP275 plasmid pIP1202 (NC_009141)
155 TraB_F145597282Tra_FNC_009378Yersinia pestis Pestoides F
156 TraB_F52788143Tra_FNC_006323Yersinia pestis plasmid pG8786 (NC_006323)
157 TraB_F134044613Tra_FNC_009139Yersinia ruckeri plasmid pYR1 (NC_009139)
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Multiple protein sequence alignment by MUSCLE online