_EC 2.3.2.5 glutaminyl-peptide cyclotransferase. 67 PDB entries  
EC 2.-.-.- Transferases. [47,929 PDB entries]
EC 2.3.-.- Acyltransferases. [6,172 PDB entries]
EC 2.3.2.- Aminoacyltransferases. [2,603 PDB entries]
EC 2.3.2.5 glutaminyl-peptide cyclotransferase. [67 PDB entries]
2afm

Reaction: N-terminal L-glutaminyl-[peptide] = N-terminal 5-oxo-L-prolyl-[peptide] + NH4(+).
 


L-glutaminyl-peptide
=
5-oxoprolyl-peptide
+ NH(3)
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Other name(s): glutaminyl cyclase. glutaminyl-tRNA cyclotransferase.
Comments: Involved in the formation of thyrotropin-releasing hormone and other biologically active peptides containing N-terminal pyroglutamyl residues. The enzyme from papaya also acts on glutaminyl-tRNA.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 67 PDB entries in enzyme class E.C.2.3.2.5

  PDB code Protein
2afm
Crystal structure of human glutaminyl cyclase at ph 6.5
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2afo
Crystal structure of human glutaminyl cyclase at ph 8.0
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (321 residues) CATH domain: 3.40.630.10
2afs
Crystal structure of the genetic mutant r54w of human glutaminyl cyclase
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2afu
Crystal structure of human glutaminyl cyclase in complex with glutamine t-butyl ester
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (321 residues) CATH domain: 3.40.630.10
2afw
Crystal structure of human glutaminyl cyclase in complex with n- acetylhistamine
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2afx
Crystal structure of human glutaminyl cyclase in complex with 1- benzylimidazole
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2afz
Crystal structure of human glutaminyl cyclase in complex with 1- vinylimidazole
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2faw
Crystal structure of papaya glutaminyl cyclase
Source: Carica papaya. Papaya. Organism_taxid: 3649. Other_details: latex
Chains: A, B (250 residues)
2iwa
Unbound glutaminyl cyclotransferase from carica papaya.
Source: Carica papaya. Papaya. Organism_taxid: 3649. Expressed in: trichoplusia ni. Expression_system_taxid: 7111. Expression_system_cell_line: high five.
Chain: A (254 residues)
2zed
Crystal structure of the human glutaminyl cyclase mutant s160a at 1.7 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zee
Crystal structure of the human glutaminyl cyclase mutant s160g at 1.99 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zef
Crystal structure of the human glutaminyl cyclase mutant e201d at 1.67 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zeg
Crystal structure of the human glutaminyl cyclase mutant e201l at 2.08 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Strain: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zeh
Crystal structure of the human glutaminyl cyclase mutant e201q at 1.8 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zel
Crystal structure of the human glutaminyl cyclase mutant d248a at 1.97 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zem
Crystal structure of the human glutaminyl cyclase mutant d248q at 2.18 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zen
Crystal structure of the human glutaminyl cyclase mutant d305a at 1.78 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zeo
Crystal structure of the human glutaminyl cyclase mutant d305e at 1.66 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
2zep
Crystal structure of the human glutaminyl cyclase mutant h319l at 2.1 angstrom resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Tissue: bone marrow. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
3mbr
Crystal structure of the glutaminyl cyclase from xanthomonas campestris
Source: Xanthomonas campestris. Organism_taxid: 340. Strain: pv. Campestris. Gene: xcc2216. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: X (236 residues)
3nok
Crystal structure of myxococcus xanthus glutaminyl cyclase
Source: Myxococcus xanthus. Organism_taxid: 34. Strain: dsm 16526. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (234 residues)
3nol
Crystal structure of zymomonas mobilis glutaminyl cyclase (trigonal form)
Source: Zymomonas mobilis. Organism_taxid: 555217. Strain: subsp. Mobilis atcc 10988, dsmz 424. Gene: zmobdraft_1643. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (234 residues)
3nom
Crystal structure of zymomonas mobilis glutaminyl cyclase (monoclinic form)
Source: Zymomonas mobilis. Organism_taxid: 555217. Strain: subsp. Mobilis atcc 10988, dsmz 424. Gene: zmobdraft_1643. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (234 residues)
3pb4
Crystal structure of the catalytic domain of human golgi-resident glutaminyl cyclase at ph 6.0
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpctl. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: X (311 residues) CATH domain: 3.40.630.10
3pb6
Crystal structure of the catalytic domain of human golgi-resident glutaminyl cyclase at ph 6.5
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: X (313 residues) CATH domain: 3.40.630.10
3pb7
Crystal structure of the catalytic domain of human golgi-resident glutaminyl cyclase in complex with pbd150
Source: Homo sapiens. Human. Organism_taxid: 9606. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: X (309 residues) CATH domain: 3.40.630.10
3pb8
Crystal structure of the catalytic domain of human golgi-resident glutaminyl cyclase in complex with n-acetylhistamine
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpctl. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: X (313 residues) CATH domain: 3.40.630.10
3pb9
Crystal structure of the catalytic domain of human golgi-resident glutaminyl cyclase in complex with 1-benzylimidazole
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpctl. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: X (309 residues) CATH domain: 3.40.630.10
3pbb
Crystal structure of human secretory glutaminyl cyclase in complex with pbd150
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
3pbe
Crystal structure of the mutant w207f of human secretory glutaminyl cyclase
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B (323 residues) CATH domain: 3.40.630.10
3si0
Structure of glycosylated human glutaminyl cyclase
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: A (314 residues) CATH domain: 3.40.630.10
3si1
Structure of glycosylated murine glutaminyl cyclase
Source: Mus musculus. Mouse. Organism_taxid: 10090. Gene: qpct. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: A (323 residues) CATH domain: 3.40.630.10
3si2
Structure of glycosylated murine glutaminyl cyclase in presence of the inhibitor pq50 (pdbd150)
Source: Mus musculus. Mouse. Organism_taxid: 10090. Gene: qpct. Expressed in: pichia pastoris. Expression_system_taxid: 4922.
Chain: A (322 residues) CATH domain: 3.40.630.10
4f9u
Structure of glycosylated glutaminyl cyclase from drosophila melanogaster
Source: Drosophila melanogaster. Fruit fly. Organism_taxid: 7227. Gene: qc, cg10487, cg32412, dmel_cg32412. Expressed in: komagataella pastoris. Expression_system_taxid: 4922.
Chains: A, B (298 residues) CATH domain: 3.40.630.10
4f9v
Structure of c113a/c136a mutant variant of glycosylated glutaminyl cyclase from drosophila melanogaster
Source: Drosophila melanogaster. Fruit fly. Organism_taxid: 7227. Gene: qc, cg10487, cg32412, dmel_cg32412. Expressed in: komagataella pastoris. Expression_system_taxid: 4922.
Chains: A, B (307 residues) CATH domain: 3.40.630.10
4fai
Crystal structure of mitochondrial isoform of glutaminyl cyclase from drosophila melanogaster
Source: Drosophila melanogaster. Fruit fly. Organism_taxid: 7227. Gene: isoqc, cg5976, dmel_cg5976. Expressed in: escherichia coli. Expression_system_taxid: 1007065.
Chains: A, B (302 residues) CATH domain: 3.40.630.10
4fbe
Crystal structure of the c136a/c164a variant of mitochondrial isoform of glutaminyl cyclase from drosophila melanogaster
Source: Drosophila melanogaster. Fruit fly. Organism_taxid: 7227. Gene: isoqc, cg5976, dmel_cg5976. Expressed in: escherichia coli. Expression_system_taxid: 1007065.
Chains: A, B (303 residues) CATH domain: 3.40.630.10
4fwu
Crystal structure of glutaminyl cyclase from drosophila melanogaster in space group i4
Source: Drosophila melanogaster. Fruit fly. Organism_taxid: 7227. Gene: qc, cg10487, cg32412, dmel_cg32412. Expressed in: komagataella pastoris. Expression_system_taxid: 4922.
Chain: A (299 residues) CATH domain: 3.40.630.10
4mhn
Crystal structure of a glutaminyl cyclase from ixodes scapularis
Source: Ixodes scapularis. Blacklegged tick,deer tick,shoulder tick. Organism_taxid: 6945. Gene: iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (326 residues) CATH domain: 3.40.630.10
4mhp
Crystal structure of apo-form of glutaminyl cyclase from ixodes scapularis
Source: Ixodes scapularis. Blacklegged tick,deer tick,shoulder tick. Organism_taxid: 6945. Gene: iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (326 residues) CATH domain: 3.40.630.10
4mhy
Crystal structure of a glutaminyl cyclase from ixodes scapularis in complex with pbd150
Source: Ixodes scapularis. Blacklegged tick,deer tick,shoulder tick. Organism_taxid: 6945. Gene: iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (324 residues) CATH domain: 3.40.630.10
4mhz
Crystal structure of apo-form glutaminyl cyclase from ixodes scapularis in complex with pbd150
Source: Ixodes scapularis. Blacklegged tick,deer tick,shoulder tick. Organism_taxid: 6945. Gene: iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (325 residues) CATH domain: 3.40.630.10
4yu9
Crystal structure of double mutant y115e y117e human glutaminyl cyclase
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B, C (326 residues) CATH domain: 3.40.630.10
4ywy
Crystal structure of double mutant y115e y117e human glutaminyl cyclase in complex with inhibitor pbd-150
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chains: A, B, C (326 residues) CATH domain: 3.40.630.10
6gbx
Crystal structure of human glutaminyl cyclase variant y115e-y117e in complex with sen177
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 469008.
Chains: A, B, C (328 residues)
6yi1
Crystal structure of human glutaminyl cyclase in complex with glu(gamma-hydrazide)-phe-ala
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008. Synthetic: yes. Synthetic construct. Organism_taxid: 32630
Chains: A, B (329 residues)
6yjy
Crystal structure of human glutaminyl cyclase in complex with neurotensin 1-5
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008
Chains: A, B (329 residues)
7cm0
Crystal structure of a glutaminyl cyclase in complex with nhv-1009
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli. Expression_system_taxid: 562
Chains: A, B, C, D (321 residues)
7coz
Crystal structure of double mutant y115e y117e human secretory glutaminyl cyclase in complex with lsb-41
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli 'bl21-gold(de3)plyss ag'. Expression_system_taxid: 866768
Chains: A, B, C (326 residues)
7cp0
Crystal structure of double mutant y115e y117e human secretory glutaminyl cyclase
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli 'bl21-gold(de3)plyss ag'. Expression_system_taxid: 866768
Chains: A, B, C (327 residues)
7d17
Crystal structure of macrostomum lignano glutaminyl cyclase
Source: Macrostomum lignano. Organism_taxid: 282301. Gene: box15_mlig028993g1. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (321 residues)
7d1h
Crystal structure of ixodes scapularis glutaminyl cyclase with d238a mutation
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (326 residues)
7d1n
Crystal structure of ixodes scapularis glutaminyl cyclase with three cu ions bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (325 residues)
7d1p
Crystal structure of ixodes scapularis glutaminyl cyclase with three cd ions bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (326 residues)
7d1y
Crystal structure of ixodes scapularis glutaminyl cyclase with two co ions bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (325 residues)
7d21
Crystal structure of ixodes scapularis glutaminyl cyclase with two zn ions bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (328 residues)
7d23
Crystal structure of ixodes scapularis glutaminyl cyclase with one k ion bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (326 residues)
7d2b
Crystal structure of ixodes scapularis glutaminyl cyclase with a ni ion bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (326 residues)
7d2d
Crystal structure of ixodes scapularis glutaminyl cyclase with a mn ion bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (326 residues)
7d2i
Crystal structure of ixodes scapularis glutaminyl cyclase with a fe ion bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (325 residues)
7d2j
Crystal structure of ixodes scapularis glutaminyl cyclase with a cd ion bound to the active site
Source: Ixodes scapularis. Black-legged tick. Organism_taxid: 6945. Gene: 8042451, iscw_iscw023264. Expressed in: escherichia coli. Expression_system_taxid: 562
Chain: A (326 residues)
7d8e
Crystal structure of double mutant y115e y117e human secretory glutaminyl cyclase in complex with lsb-09
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli 'bl21-gold(de3)plyss ag'. Expression_system_taxid: 866768
Chains: A, B, C (318 residues)
8hy3
Crystal structure of human secretory glutaminyl cyclase in complex with 1-benzyl-5-methyl-1h-imidazole
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008
Chain: A (323 residues)
9fxg
Crystal structure of double mutant y115e y117e human glutaminyl cyclase in apo-state
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B, C (320 residues)
9fxh
Crystal structure of cobalt(ii)-substituted double mutant y115e y117e human glutaminyl cyclase
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B, C (323 residues)
9fxi
Crystal structure of cobalt(ii)-substituted double mutant y115e y117e human glutaminyl cyclase in complex with sen177
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B, C (326 residues)
9fxj
Crystal structure of cobalt(ii)-substituted double mutant y115e y117e human glutaminyl cyclase in complex with pbd-150
Source: Homo sapiens. Human. Organism_taxid: 9606. Gene: qpct. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B, C (326 residues)