2GSK

Structure of the BtuB:TonB Complex

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0005509	molecular_function	calcium ion binding
A	0005515	molecular_function	protein binding
A	0006811	biological_process	monoatomic ion transport
A	0009279	cellular_component	cell outer membrane
A	0015288	molecular_function	porin activity
A	0015420	molecular_function	ABC-type vitamin B12 transporter activity
A	0015889	biological_process	cobalamin transport
A	0016020	cellular_component	membrane
A	0019904	molecular_function	protein domain specific binding
A	0034220	biological_process	monoatomic ion transmembrane transport
A	0035461	biological_process	vitamin transmembrane transport
A	0046872	molecular_function	metal ion binding
A	0046930	cellular_component	pore complex
A	0090482	molecular_function	vitamin transmembrane transporter activity
A	1902495	cellular_component	transmembrane transporter complex
B	0015891	biological_process	siderophore transport
B	0030288	cellular_component	outer membrane-bounded periplasmic space
B	0031992	molecular_function	energy transducer activity
B	0055085	biological_process	transmembrane transport

Functional Information from PDB Data

site_id	AC1
Number of Residues	5
Details	BINDING SITE FOR RESIDUE CA A 1

Chain	Residue
A	ASP179
A	GLN191
A	ASP193
A	ASP195
A	ASP230

---

site_id	AC2
Number of Residues	6
Details	BINDING SITE FOR RESIDUE CA A 2

Chain	Residue
A	HOH813
A	HOH832
A	ASP193
A	ASP195
A	TYR229
A	ASP230

---

site_id	AC3
Number of Residues	33
Details	BINDING SITE FOR RESIDUE CNC A 701

Chain	Residue
A	ASN57
A	GLN62
A	LEU63
A	SER65
A	PHE67
A	ALA73
A	GLY89
A	VAL90
A	SER91
A	SER93
A	ASN185
A	TYR229
A	ASP230
A	ASN276
A	THR289
A	TYR328
A	TYR446
A	TYR453
A	LEU496
A	ARG497
A	TYR531
A	TYR579
A	HOH814
A	HOH821
A	HOH828
A	HOH838
A	HOH867
A	HOH873
A	HOH881
A	HOH904
A	HOH936
A	HOH971
A	HOH1028

---

site_id	AC4
Number of Residues	4
Details	BINDING SITE FOR RESIDUE LDA A 800

Chain	Residue
A	VAL154
A	LYS200
A	THR201
A	LEU202

---

site_id	AC5
Number of Residues	4
Details	BINDING SITE FOR RESIDUE LDA A 801

Chain	Residue
A	TYR203
A	TYR221
A	GLN248
A	ILE305

---

site_id	AC6
Number of Residues	6
Details	BINDING SITE FOR RESIDUE LDA A 802

Chain	Residue
A	ILE380
A	TYR383
A	PHE569
A	ASP570
A	ARG584
A	OCT804

---

site_id	AC7
Number of Residues	5
Details	BINDING SITE FOR RESIDUE LDA A 803

Chain	Residue
A	GLY145
A	SER146
A	ASN147
A	SER148
A	LEU588

---

site_id	AC8
Number of Residues	5
Details	BINDING SITE FOR RESIDUE OCT A 804

Chain	Residue
A	THR426
A	ARG584
A	TYR586
A	LDA802
A	HOH1031

---

site_id	AC9
Number of Residues	3
Details	BINDING SITE FOR RESIDUE OCT A 805

Chain	Residue
A	TYR333
A	ASP334
A	HOH869

---

site_id	BC1
Number of Residues	2
Details	BINDING SITE FOR RESIDUE OCT A 806

Chain	Residue
A	TRP509
A	TRP516

---

site_id	BC2
Number of Residues	1
Details	BINDING SITE FOR RESIDUE HEX A 807

Chain	Residue
A	THR267

---

site_id	BC3
Number of Residues	1
Details	BINDING SITE FOR RESIDUE HEX A 808

Chain	Residue
A	GLN501

---

Functional Information from PROSITE/UniProt

site_id	PS01156
Number of Residues	18
Details	TONB_DEPENDENT_REC_2 TonB-dependent receptor (TBDR) proteins signature 2. YgyqTaGReYtLSGsYtF

Chain	Residue	Details
A	TYR577-PHE594

---

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	278
Details	TRANSMEM: Beta stranded

Chain	Residue	Details
A	THR138-GLY145
A	TYR333-GLY349
A	PHE351-ASP361
A	PHE365-ILE380
A	TYR383-ASN397
A	LYS414-GLU423
A	VAL429-ASN438
A	TYR453-PHE470
A	PRO474-ALA489
A	ARG497-TRP509
A	ASP515-ASP530
A	TYR149-GLN158
A	THR538-ALA552
A	ILE565-VAL576
A	ALA582-PHE594
A	THR164-THR175
A	PHE197-GLU207
A	ASP212-ASN228
A	ARG243-ASN257
A	GLU259-ASN276
A	THR289-ILE305
A	HIS308-TRP317

---

site_id	SWS_FT_FI2
Number of Residues	106
Details	TOPO_DOM: Extracellular => ECO:0000269|PubMed:12652322

Chain	Residue	Details
A	SER146-SER148
A	TYR531-GLN537
A	TYR577-THR581
A	HIS176-GLY196
A	TYR229-THR242
A	TYR277-ALA288
A	GLN318-GLY332
A	ASN362-GLN364
A	LEU398-GLU413
A	ASP439-LYS452
A	ILE490-LEU496

---

site_id	SWS_FT_FI3
Number of Residues	32
Details	TOPO_DOM: Periplasmic => ECO:0000269|PubMed:12652322

Chain	Residue	Details
A	GLN159-LYS163
A	TYR553-LYS564
A	HIS208-THR211
A	GLY258
A	VAL306-GLY307
A	ASP350
A	GLU381-GLY382
A	GLY424-GLY428
A	ASP471-GLY473
A	GLN510-PHE514

---

site_id	SWS_FT_FI4
Number of Residues	8
Details	BINDING: BINDING => ECO:0000269|PubMed:12652322, ECO:0007744|PDB:1NQH

Chain	Residue	Details
A	LEU63
A	SER65
A	ASN72
A	VAL90
A	ALA231
A	THR289
A	ARG497
A	TYR531

---

site_id	SWS_FT_FI5
Number of Residues	7
Details	BINDING: BINDING => ECO:0000269|PubMed:12652322

Chain	Residue	Details
A	ASP179
A	GLN191
A	ASP193
A	ASP195
A	TYR229
A	ASP230
A	ASP241

---