1N2Z - JenaLib

Asymmetric Unit (31, 31)

No.	Name	Evidence	Residues	Description
01	AC1	SOFTWARE	GLU A:245 , CL A:426 , CL A:427 , CL A:429 , HOH A:443 , HOH A:459	BINDING SITE FOR RESIDUE CD A 402
02	AC2	SOFTWARE	ASP A:52 , ASP A:242 , ARG A:246 , HOH A:431 , HOH A:442	BINDING SITE FOR RESIDUE CD A 403
03	AC3	SOFTWARE	THR A:215 , CL A:428 , CL A:429 , HOH A:443 , HOH A:459 , HOH A:515	BINDING SITE FOR RESIDUE CD A 404
04	AC4	SOFTWARE	ASP A:266 , HOH A:445 , GLU B:181 , GLU B:186 , LYS B:190	BINDING SITE FOR RESIDUE CD A 405
05	AC5	SOFTWARE	THR B:215 , GLU B:245 , CL B:424 , HOH B:430 , HOH B:438 , HOH B:481	BINDING SITE FOR RESIDUE CD B 406
06	AC6	SOFTWARE	ASP B:52 , ASP B:242 , ARG B:246 , CL B:425 , HOH B:426	BINDING SITE FOR RESIDUE CD B 407
07	AC7	SOFTWARE	THR B:215 , HOH B:438 , HOH B:468 , HOH B:481	BINDING SITE FOR RESIDUE CD B 408
08	AC8	SOFTWARE	HOH A:434 , GLU B:173 , HOH B:519 , HOH B:587	BINDING SITE FOR RESIDUE CD B 409
09	AC9	SOFTWARE	TRP A:243 , ARG A:250 , GLN B:149 , GLN B:256 , HOH B:432	BINDING SITE FOR RESIDUE CD B 410
10	BC1	SOFTWARE	ARG A:86 , ASP B:108 , ALA B:109 , HOH B:429 , HOH B:482	BINDING SITE FOR RESIDUE CD A 411
11	BC2	SOFTWARE	ASP A:108 , ALA A:109 , HOH A:436 , ARG B:86	BINDING SITE FOR RESIDUE CD A 412
12	BC3	SOFTWARE	ASP A:266 , HOH A:445 , HOH A:475 , HOH A:562	BINDING SITE FOR RESIDUE CD A 413
13	BC4	SOFTWARE	GLU A:181 , LYS A:190 , ARG B:92	BINDING SITE FOR RESIDUE CD A 414
14	BC5	SOFTWARE	ASP A:130 , HOH A:504	BINDING SITE FOR RESIDUE CD A 415
15	BC6	SOFTWARE	ASP B:219 , CD B:422	BINDING SITE FOR RESIDUE CD B 416
16	BC7	SOFTWARE	ASP A:219 , HOH A:484 , HOH A:528 , ASP B:266	BINDING SITE FOR RESIDUE CD A 417
17	BC8	SOFTWARE	HOH A:499 , HOH B:507	BINDING SITE FOR RESIDUE CD A 418
18	BC9	SOFTWARE	GLU A:91 , HOH A:603	BINDING SITE FOR RESIDUE CD A 419
19	CC1	SOFTWARE	HOH B:529 , HOH B:574 , HOH B:597	BINDING SITE FOR RESIDUE CD B 420
20	CC2	SOFTWARE	HOH A:513	BINDING SITE FOR RESIDUE CD A 421
21	CC3	SOFTWARE	ASP B:191 , ARG B:207 , CD B:416	BINDING SITE FOR RESIDUE CD B 422
22	CC4	SOFTWARE	GLU A:173 , HOH A:537 , ARG B:86 , GLU B:91 , HOH B:528	BINDING SITE FOR RESIDUE CD B 423
23	CC5	SOFTWARE	GLU B:245 , CNC B:401 , CD B:406	BINDING SITE FOR RESIDUE CL B 424
24	CC6	SOFTWARE	TYR B:50 , ARG B:246 , CD B:407	BINDING SITE FOR RESIDUE CL B 425
25	CC7	SOFTWARE	GLU A:245 , CNC A:400 , CD A:402 , CL A:427 , HOH A:621	BINDING SITE FOR RESIDUE CL A 426
26	CC8	SOFTWARE	CNC A:400 , CD A:402 , CL A:426 , CL A:429	BINDING SITE FOR RESIDUE CL A 427
27	CC9	SOFTWARE	GLN A:161 , GLY A:163 , ILE A:214 , THR A:215 , CD A:404	BINDING SITE FOR RESIDUE CL A 428
28	DC1	SOFTWARE	CD A:402 , CD A:404 , CL A:427 , HOH A:459	BINDING SITE FOR RESIDUE CL A 429
29	DC2	SOFTWARE	PRO A:31 , ALA A:32 , TYR A:50 , TRP A:66 , TRP A:85 , GLY A:87 , GLY A:88 , PHE A:168 , TRP A:196 , ASP A:242 , GLU A:245 , ARG A:246 , CL A:426 , CL A:427 , HOH A:433 , HOH A:455 , HOH A:490 , HOH A:496 , HOH A:503 , HOH A:512 , HOH A:614 , HOH A:620 , HOH A:622 , HOH A:623 , HOH A:624 , HOH A:625 , HOH A:627	BINDING SITE FOR RESIDUE CNC A 400
30	DC3	SOFTWARE	PRO B:31 , ALA B:32 , TYR B:50 , TRP B:66 , TRP B:85 , GLY B:87 , GLY B:88 , PHE B:168 , TRP B:196 , SER B:241 , ASP B:242 , GLU B:245 , ARG B:246 , CL B:424 , HOH B:431 , HOH B:455 , HOH B:459 , HOH B:472 , HOH B:526 , HOH B:530 , HOH B:599 , HOH B:600 , HOH B:601	BINDING SITE FOR RESIDUE CNC B 401
31	DC4	SOFTWARE	PRO A:124 , TRP A:125 , PRO B:124 , TRP B:125	BINDING SITE FOR RESIDUE PG4 A 430

SS Bonds (2, 2)

Cis Peptide Bonds (2, 2)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 2)

Asymmetric Unit (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	FE_B12_PBP	PS50983	Iron siderophore/cobalamin periplasmic-binding domain profile.	BTUF_ECOLI	25-266	2	A:25-266 B:25-266

Biological Unit 1 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	FE_B12_PBP	PS50983	Iron siderophore/cobalamin periplasmic-binding domain profile.	BTUF_ECOLI	25-266	1	A:25-266 -

Biological Unit 2 (1, 1)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	FE_B12_PBP	PS50983	Iron siderophore/cobalamin periplasmic-binding domain profile.	BTUF_ECOLI	25-266	1	- B:25-266

Biological Unit 3 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	FE_B12_PBP	PS50983	Iron siderophore/cobalamin periplasmic-binding domain profile.	BTUF_ECOLI	25-266	2	A:25-266 B:25-266

Biological Unit 4 (1, 2)

	PROSITE			UniProtKB		PDB
No.	ID	AC	Description	ID	Location	Count	Location
1	FE_B12_PBP	PS50983	Iron siderophore/cobalamin periplasmic-binding domain profile.	BTUF_ECOLI	25-266	2	A:25-266 B:25-266

Exons (0, 0)

Sequences/Alignments

Asymmetric Unit

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
	Number of residues per labelling interval =
	UniProt sequence: complete aligned part

Show mapping:	SCOP domains	CATH domains	Pfam domains	Secondary structure (by author)
	SAPs(SNPs)	PROSITE motifs	Exons
	(details for a mapped element are shown in a popup box when the mouse pointer rests over it)

Chain A from PDB  Type:PROTEIN  Length:245
 aligned with BTUF_ECOLI | P37028 from UniProtKB/Swiss-Prot  Length:266

    Alignment length:245
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261     
           BTUF_ECOLI    22 AAPRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQGMNLERIVALKPDLVIAWRGGNAERQVDQLASLGIKVMWVDATSIEQIANALRQLAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSGKESIQNQVLEVCGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQIPKIKQYWGEQLKIPVIPLTSDWFERASPRIILAAQQLCNALSQVD 266
               SCOP domains d1n2za_ A: Vitamin B12 binding protein BtuF                                                                                                                                                                                                           SCOP domains
               CATH domains 1n2zA01 A:22-140 Nitrogenase molybdenum iron protein domain                                                            1n2zA02 A:141-266 Nitrogenase molybdenum iron protein domain                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eee.hhhhhhhhhhh......ee.....hhhhhhh.eeee..eehhhhhhhh...eeee.....hhhhhhhhhhh...eee....hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh....eeeee.............hhhhhhhhhh.eee............hhhhhhh....eeeee.hhhhhhhhhhhhh......eeeehhhhhhh...hhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---FE_B12_PBP  PDB: A:25-266 UniProt: 25-266                                                                                                                                                                                                          PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n2z A  22 AAPRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQGMNLERIVALKPDLVIAWRGGNAERQVDQLASLGIKVMWVDATSIEQIANALRQLAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSGKESIQNQVLEVCGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQIPKIKQYWGEQLKIPVIPLTSDWFERASPRIILAAQQLCNALSQVD 266
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261

Chain B from PDB  Type:PROTEIN  Length:245
 aligned with BTUF_ECOLI | P37028 from UniProtKB/Swiss-Prot  Length:266

    Alignment length:245
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261     
           BTUF_ECOLI    22 AAPRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQGMNLERIVALKPDLVIAWRGGNAERQVDQLASLGIKVMWVDATSIEQIANALRQLAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSGKESIQNQVLEVCGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQIPKIKQYWGEQLKIPVIPLTSDWFERASPRIILAAQQLCNALSQVD 266
               SCOP domains d1n2zb_ B: Vitamin B12 binding protein BtuF                                                                                                                                                                                                           SCOP domains
               CATH domains 1n2zB01 B:22-140 Nitrogenase molybdenum iron protein domain                                                            1n2zB02 B:141-266 Nitrogenase molybdenum iron protein domain                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eee.hhhhhhhhhhh......ee.....hhhhhhh.eeee..eehhhhhhhh...eeee.....hhhhhhhhhhh...eee....hhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhh....eeeee.............hhhhhhhhhh.eee............hhhhhhhh...eeeee.hhhhhhhhhhhhh......eeeehhhhhhh...hhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---FE_B12_PBP  PDB: B:25-266 UniProt: 25-266                                                                                                                                                                                                          PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1n2z B  22 AAPRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQGMNLERIVALKPDLVIAWRGGNAERQVDQLASLGIKVMWVDATSIEQIANALRQLAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSGKESIQNQVLEVCGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQIPKIKQYWGEQLKIPVIPLTSDWFERASPRIILAAQQLCNALSQVD 266
                                    31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261

Legend:		→ Mismatch	(orange background)
	-	→ Gap	(green background, '-', border residues have a numbering label)
		→ Modified Residue	(blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
	x	→ Chemical Group	(purple background, 'x', labelled with number + name, e.g. ACE or NH2)
	extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '\|'

Classification and Annotation

SCOP Domains (1, 2)

CATH Domains (1, 4)

Pfam Domains (0, 0)

Gene Ontology (5, 5)

Asymmetric Unit(hide GO term definitions)

Chain A,B (BTUF_ECOLI | P37028)

molecular function
	GO:0031419	cobalamin binding	Interacting selectively and non-covalently with cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom.
biological process
	GO:0015889	cobalamin transport	The directed movement of cobalamin (vitamin B12), a water-soluble vitamin characterized by possession of a corrin nucleus containing a cobalt atom, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
	GO:0006810	transport	The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
	GO:0030288	outer membrane-bounded periplasmic space	The region between the inner (cytoplasmic or plasma) membrane and outer membrane of organisms with two membranes such as Gram negative bacteria. These periplasmic spaces are relatively thick and contain a thin peptidoglycan layer (PGL), also referred to as a thin cell wall.
	GO:0042597	periplasmic space	The region between the inner (cytoplasmic) and outer membrane (Gram-negative Bacteria) or cytoplasmic membrane and cell wall (Fungi and Gram-positive Bacteria).

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	Cis Peptide Bonds
		Tyr A:53 - Pro A:54	[ RasMol ]
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	1n2z
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Description

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (4, 31)

Sites (31, 31)