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Information on 1ksi_A_437
Loop code: 1ksi_A_437
PDB: 1ksi
Chain: A
Type: AR beta-beta link
Loop Start: 437  Loop Length: 1
Sec Struct Nt length: 4  Sec Struct Ct length: 11
Structure geometry
d (Å): 7.934200 delta (°): 7.401000theta (°): 44.291302 rho (°): 243.738907
Sequence:SIGIYHDHFYIYYLDF
Sec Struct:EEEE-EEEEEEEEEEE
PDB ligands within a cut-off distance of 6 Å in this loop
LigandsResidueatSSatLOOP
CUCOPPER (II) ION H - 44201
TPQ5-(2-CARBOXY-2-AMINOETHYL)-2-HYDROXY-1,4-BENZOQUINONE H - 44201
CUCOPPER (II) ION D - 44310
CUCOPPER (II) ION H - 44410
TPQ5-(2-CARBOXY-2-AMINOETHYL)-2-HYDROXY-1,4-BENZOQUINONE H - 44410
MNMANGANESE (II) ION L - 45010
MNMANGANESE (II) ION D - 45110
MNMANGANESE (II) ION F - 45210
PDB Site Annotation
SiteResidueatSSatLOOP
ACA - THE COPPER ATOM IN THE ACTIVE SITE OF EACH SUBUNIT IS LIGATED TO THREE HISTIDINE RESIDUES AND TWO WATER MOLECULES IN A DISTORTED SQUARE PYRAMIDAL ARRANGEMENT. THE ORGANIC COFACTOR TOPA QUINONE (TPQ) IS IN THE ACTIVE SITE WITH THE NEAREST QUINONE OXYGEN ATOM AT ~6A FROM THE COPPER ATOM. H - 44201
ACA - THE COPPER ATOM IN THE ACTIVE SITE OF EACH SUBUNIT IS LIGATED TO THREE HISTIDINE RESIDUES AND TWO WATER MOLECULES IN A DISTORTED SQUARE PYRAMIDAL ARRANGEMENT. THE ORGANIC COFACTOR TOPA QUINONE (TPQ) IS IN THE ACTIVE SITE WITH THE NEAREST QUINONE OXYGEN ATOM AT ~6A FROM THE COPPER ATOM. H - 44410