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Annotation rule MF_01531 |
General rule information
[?]
Accession |
MF_01531 |
Dates |
16-FEB-2005 (Created) 19-NOV-2019 (Last updated, Version 29) |
Scope |
Bacteria; Gammaproteobacteria |
Propagated annotation
[?]
Identifier, protein and gene names
[?]
Protein name |
RecName:
|
Full=Vitamin B12 transporter BtuB;
|
AltName:
|
Full=Cobalamin receptor;
|
AltName:
|
Full=Outer membrane cobalamin translocator;
|
Flags:
|
Precursor;
|
|
Function |
Involved in the active translocation of vitamin B12 (cyanocobalamin) across the outer membrane to the periplasmic space. It derives its energy for transport by interacting with the trans-periplasmic membrane protein TonB. |
Subcellular location |
Cell outer membrane; Multi-pass membrane protein. |
Similarity |
Belongs to the TonB-dependent receptor family. BtuB (TC 1.B.14.3.1) subfamily. |
case <OC:Enterobacterales>
end case
GO:0090482; Molecular function: vitamin transmembrane transporter activity.
GO:0015889; Biological process: cobalamin transport.
GO:0009279; Cellular component: cell outer membrane.
General |
Signal; -; 1; trigger=yes; |
case <OC:Enterobacterales>
From: BTUB_ECOLI (P06129) |
Key
|
|
From
|
|
To
|
|
Description
|
|
Tag
|
|
Condition
|
|
FTGroup
|
TRANSMEM
|
|
158
|
|
165
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
169
|
|
178
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
184
|
|
195
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
217
|
|
227
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
232
|
|
248
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
263
|
|
277
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
279
|
|
296
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
309
|
|
325
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
328
|
|
337
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
353
|
|
369
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
371
|
|
381
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
385
|
|
400
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
403
|
|
417
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
434
|
|
443
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
449
|
|
458
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
473
|
|
490
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
494
|
|
509
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
517
|
|
529
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
535
|
|
550
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
558
|
|
572
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
585
|
|
596
|
|
Beta stranded
|
|
|
|
|
|
|
TRANSMEM
|
|
602
|
|
614
|
|
Beta stranded
|
|
|
|
|
|
|
REGION
|
|
108
|
|
112
|
|
Cobalamin-binding
|
|
|
|
A-G-[VIGL]-[ST]-G
|
|
|
REGION
|
|
249
|
|
251
|
|
Cobalamin-binding
|
|
|
|
Y-[DN]-x
|
|
|
REGION
|
|
515
|
|
518
|
|
Cobalamin-binding
|
|
|
|
L-x-R-R
|
|
|
MOTIF
|
|
26
|
|
33
|
|
TonB box
|
|
|
|
|
|
|
MOTIF
|
|
597
|
|
614
|
|
TonB C-terminal box
|
|
|
|
|
|
|
METAL
|
|
199
|
|
199
|
|
Calcium 1
|
|
|
|
[DN]
|
|
|
METAL
|
|
211
|
|
211
|
|
Calcium 1
|
|
|
|
Q
|
|
|
METAL
|
|
213
|
|
213
|
|
Calcium 1
|
|
|
|
D
|
|
|
METAL
|
|
213
|
|
213
|
|
Calcium 2
|
|
|
|
D
|
|
|
METAL
|
|
215
|
|
215
|
|
Calcium 1
|
|
|
|
D
|
|
|
METAL
|
|
215
|
|
215
|
|
Calcium 2
|
|
|
|
D
|
|
|
METAL
|
|
249
|
|
249
|
|
Calcium 2; via carbonyl oxygen
|
|
|
|
Y
|
|
|
METAL
|
|
250
|
|
250
|
|
Calcium 1
|
|
|
|
D
|
|
|
METAL
|
|
250
|
|
250
|
|
Calcium 2
|
|
|
|
D
|
|
|
METAL
|
|
261
|
|
261
|
|
Calcium 2
|
|
|
|
D
|
|
|
end case
case not <OC:Enterobacterales>
MOTIF
|
|
26
|
|
33
|
|
TonB box
|
|
|
|
|
|
|
MOTIF
|
|
597
|
|
614
|
|
TonB C-terminal box
|
|
|
|
|
|
|
end case
Additional information
[?]
Size range |
606-625 amino acids |
Related rules |
None |
Fusion |
None |