PDB: 1ckq Compound: endonuclease Classification: PROTEIN/DNA Entry date in PDB: 1999-04-26 Resolution [Å]: 1.85 R-Factor: 0.235

CHAIN: A SWISS-PROT/TREMBL: P00642    KEYWORD: 3D-structure    Endonuclease    Hydrolase    Magnesium    Metal-binding    Nuclease    Plasmid    Restriction system    EC: 3.1.21.4 SCOP: c.52.1.1 Alpha and beta proteins (a/b)    Restriction endonuclease-like    Restriction endonuclease-like    Restriction endonuclease EcoRI    Restriction endonuclease EcoRI    Escherichia coli GO:  type II site-specific deoxyribonuclease activity    DNA restriction-modification system

Image Source: PDB

Loops in ArchDB40 clusters

1ckq_A_35 - HE => SUBCLASS : 5.4.1
1ckq_A_179 - HA => SUBCLASS : 3.1.1
1ckq_A_94 - HA => SUBCLASS : 5.1.2
1ckq_A_55 - AR => SUBCLASS : 1.1.5
1ckq_A_55 - AR => SUBCLASS : 1.1.6

Loops in ArchDB95 clusters

1ckq_A_55 - AR => SUBCLASS : 1.2.11
1ckq_A_55 - AR => SUBCLASS : 2.4.1
1ckq_A_35 - HE => SUBCLASS : 4.1.2
1ckq_A_35 - HE => SUBCLASS : 5.14.1
1ckq_A_179 - HA => SUBCLASS : 3.1.1
1ckq_A_94 - HA => SUBCLASS : 5.1.1

Loops not clustered in ArchDB

1ckq_A_87 - AR
1ckq_A_165 - AR
1ckq_A_188 - AR
1ckq_A_230 - AR
1ckq_A_236 - EH
1ckq_A_104 - EH
1ckq_A_61 - EH
1ckq_A_221 - HA
1ckq_A_63 - HE
1ckq_A_146 - HE
1ckq_A_20 - HH
1ckq_A_118 - HH
1ckq_A_248 - HH

1eri A - percentage of sequence identity: 100
1qc9 A - percentage of sequence identity: 100
1qc9 B - percentage of sequence identity: 100
1qc9 C - percentage of sequence identity: 100
1qps A - percentage of sequence identity: 100
1qrh A - percentage of sequence identity: 99
1qri A - percentage of sequence identity: 99