5BK6

Structural and biochemical characterization of a non-canonical biuret hydrolase (BiuH) from the cyanuric acid catabolism pathway of Rhizobium leguminasorum bv. viciae 3841

Functional Information from GO Data

Chain	GOid	namespace	contents
A	0016787	molecular_function	hydrolase activity
B	0016787	molecular_function	hydrolase activity
C	0016787	molecular_function	hydrolase activity
D	0016787	molecular_function	hydrolase activity

Functional Information from PDB Data

site_id	AC1
Number of Residues	13
Details	binding site for residue BTB A 301

Chain	Residue
A	ASN158
B	ASN158
B	GLN159
B	ARG161
B	BTB301
A	ARG161
A	ILE162
A	GLU163
A	ARG186
A	GLY187
A	TYR188
A	HOH466
A	HOH500

---

site_id	AC2
Number of Residues	8
Details	binding site for residue GOL A 302

Chain	Residue
A	GLU154
A	ARG186
A	HOH438
A	HOH445
A	HOH463
A	HOH523
B	GLU154
D	ALA150

---

site_id	AC3
Number of Residues	14
Details	binding site for residue BTB B 301

Chain	Residue
A	ASN158
A	GLN159
A	ARG161
A	BTB301
B	ASN158
B	ARG161
B	ILE162
B	GLU163
B	ARG186
B	GLY187
B	TYR188
B	HOH421
B	HOH467
B	HOH500

---

site_id	AC4
Number of Residues	14
Details	binding site for residue BTB C 301

Chain	Residue
C	ASN158
C	ARG161
C	ILE162
C	GLU163
C	ARG186
C	GLY187
C	TYR188
C	HOH410
C	HOH473
C	HOH499
D	ASN158
D	GLN159
D	ARG161
D	BTB301

---

site_id	AC5
Number of Residues	8
Details	binding site for residue GOL C 302

Chain	Residue
B	ALA150
C	GLU154
C	ARG186
C	HOH417
C	HOH450
C	HOH460
C	HOH479
D	GLU154

---

site_id	AC6
Number of Residues	13
Details	binding site for residue BTB D 301

Chain	Residue
C	ASN158
C	GLN159
C	ARG161
C	BTB301
D	ASN158
D	ARG161
D	ILE162
D	GLU163
D	ARG186
D	GLY187
D	TYR188
D	HOH447
D	HOH495

---

site_id	AC7
Number of Residues	8
Details	binding site for residue GOL D 302

Chain	Residue
A	ALA150
C	GLU154
D	GLU154
D	ARG186
D	HOH415
D	HOH459
D	HOH463
D	HOH488

---

Functional Information from SwissProt/UniProt

site_id	SWS_FT_FI1
Number of Residues	4
Details	ACT_SITE: Proton acceptor => ECO:0000305|PubMed:29425231

Chain	Residue	Details
A	ASP36
B	ASP36
C	ASP36
D	ASP36

---

site_id	SWS_FT_FI2
Number of Residues	4
Details	ACT_SITE: ACT_SITE => ECO:0000305|PubMed:29425231

Chain	Residue	Details
A	HIS142
B	HIS142
C	HIS142
D	HIS142

---

site_id	SWS_FT_FI3
Number of Residues	4
Details	ACT_SITE: Nucleophile => ECO:0000305|PubMed:29425231

Chain	Residue	Details
A	CYS175
B	CYS175
C	CYS175
D	CYS175

---

site_id	SWS_FT_FI4
Number of Residues	16
Details	BINDING: BINDING => ECO:0000269|PubMed:29425231, ECO:0007744|PDB:6AZQ

Chain	Residue	Details
A	GLU84
A	LYS145
D	GLU84
D	LYS145
D	ILE170
D	GLN215
A	ILE170
A	GLN215
B	GLU84
B	LYS145
B	ILE170
B	GLN215
C	GLU84
C	LYS145
C	ILE170
C	GLN215

---