5vch

X-ray diffraction
2.35Å resolution

Crystal structure of full-length Kluyveromyces lactis Kap123

Released:

Function and Biology Details

Reactions catalysed:
IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate
dUTP + H(2)O = dUMP + diphosphate
Purine deoxynucleoside + phosphate = purine + 2'-deoxy-alpha-D-ribose 1-phosphate
(1a) cholest-4-en-3-one + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H(+) + O(2) = (25S)-26-hydroxycholest-4-en-3-one + 2 oxidized ferredoxin [iron-sulfur] cluster + H(2)O
1-(5-phospho-beta-D-ribosyl)-ATP + diphosphate = ATP + 5-phospho-alpha-D-ribose 1-diphosphate
ATP + D-ribose = ADP + D-ribose 5-phosphate
ATP + a protein = ADP + a phosphoprotein
Beta-nicotinate D-ribonucleotide + diphosphate + CO(2) = pyridine-2,3-dicarboxylate + 5-phospho-alpha-D-ribose 1-diphosphate
N-(5-phospho-D-ribosyl)-anthranilate + diphosphate = anthranilate + 5-phospho-alpha-D-ribose 1-diphosphate
Endonucleolytic cleavage to 5'-phosphomonoester.
ATP-dependent breakage, passage and rejoining of double-stranded DNA
GTP + H(2)O = GDP + phosphate
ATP + L-methionine + H(2)O = phosphate + diphosphate + S-adenosyl-L-methionine
2'-deoxyribonucleoside diphosphate + thioredoxin disulfide + H(2)O = ribonucleoside diphosphate + thioredoxin
Cleavage of peptide bonds with very broad specificity.
Diphosphate + H(2)O = 2 phosphate
4 Fe(2+) + 4 H(+) + O(2) = 4 Fe(3+) + 2 H(2)O
S-adenosyl-L-methionine + a catechol = S-adenosyl-L-homocysteine + a guaiacol
3'-end directed exonucleolytic cleavage of viral RNA-DNA hybrid
ATP + H(2)O + 4 H(+)(Side 1) = ADP + phosphate + 4 H(+)(Side 2)
Chorismate = prephenate
(1a) L-cysteine + [enzyme]-cysteine = L-alanine + [enzyme]-S-sulfanylcysteine
D-fructose 1,6-bisphosphate = glycerone phosphate + D-glyceraldehyde 3-phosphate
(1a) NADP(+) = 2'-phospho-cyclic ADP-ribose + nicotinamide
Hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)- glycosidic linkages of terminal sialic acid residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates.
Acetyl-CoA + alpha-D-glucosamine 1-phosphate = CoA + N-acetyl-alpha-D-glucosamine 1-phosphate
Random endo-hydrolysis of N-acetyl-beta-D-glucosaminide (1->4)-beta-linkages in chitin and chitodextrins
Protein N(6)-(dihydrolipoyl)lysine + NAD(+) = protein N(6)-(lipoyl)lysine + NADH
dCTP + 2 H(2)O = dUMP + diphosphate + NH(3)
TSAVLQ-|-SGFRK-NH(2) and SGVTFQ-|-GKFKK the two peptides corresponding to the two self-cleavage sites of the SARS 3C-like proteinase are the two most reactive peptide substrates. The enzyme exhibits a strong preference for substrates containing Gln at P1 position and Leu at P2 position.
Tuberculosinyl diphosphate + adenosine = 1-tuberculosinyladenosine + diphosphate
3-oxoadipate + NAD(P)(+) = 2-maleylacetate + NAD(P)H
dTDP-beta-L-rhamnose + NADP(+) = dTDP-4-dehydro-beta-L-rhamnose + NADPH
N-acetyl-O-acetylneuraminate + H(2)O = N-acetylneuraminate + acetate
ATP + H(2)O + cellular protein(Side 1) = ADP + phosphate + cellular protein(Side 2)
An acyl-[acyl-carrier protein] + NAD(+) = a trans-2,3-dehydroacyl-[acyl-carrier protein] + NADH
NTP + H(2)O = NDP + phosphate
4 benzenediol + O(2) = 4 benzosemiquinone + 2 H(2)O
ATP + L-glutamate + NH(3) = ADP + phosphate + L-glutamine
5,10-methylenetetrahydrofolate + glycine + H(2)O = tetrahydrofolate + L-serine
ATP + 2-(formamido)-N(1)-(5-phospho-D-ribosyl)acetamidine = ADP + phosphate + 5-amino-1-(5-phospho-D-ribosyl)imidazole
UTP + N-acetyl-alpha-D-glucosamine 1-phosphate = diphosphate + UDP-N-acetyl-alpha-D-glucosamine
Endohydrolysis of RNA in RNA/DNA hybrids. Three different cleavage modes: 1. sequence-specific internal cleavage of RNA. Human immunodeficiency virus type 1 and Moloney murine leukemia virus enzymes prefer to cleave the RNA strand one nucleotide away from the RNA-DNA junction. 2. RNA 5'-end directed cleavage 13-19 nucleotides from the RNA end. 3. DNA 3'-end directed cleavage 15-20 nucleotides away from the primer terminus.
(3R)-3-hydroxyacyl-[acyl-carrier-protein] + NADP(+) = 3-oxoacyl-[acyl-carrier-protein] + NADPH
Isocitrate = succinate + glyoxylate
A chalcone = a flavanone
A beta-lactam + H(2)O = a substituted beta-amino acid
2 3-phospho-D-glycerate + 2 H(+) = D-ribulose 1,5-bisphosphate + CO(2) + H(2)O
Phosphoenolpyruvate + 3-phosphoshikimate = phosphate + 5-O-(1-carboxyvinyl)-3-phosphoshikimate
RX + glutathione = HX + R-S-glutathione
5,10-methylenetetrahydrofolate + dUMP = dihydrofolate + dTMP
D-glucarate = 5-dehydro-4-deoxy-D-glucarate + H(2)O
L-arginine + H(2)O = L-ornithine + urea
NAD(+) + H(2)O = ADP-D-ribose + nicotinamide
6-hydroxymethyl-7,8-dihydropterin diphosphate + 4-aminobenzoate = diphosphate + dihydropteroate
Cleaves -Ala-|-Ser- and -Ala-|-Ala- bonds in the scaffold protein.
Hydrolysis of proteins to small peptides in the presence of ATP and magnesium. Alpha-Casein is the usual test substrate. In the absence of ATP, only oligopeptides shorter than five residues are hydrolyzed (such as succinyl-Leu-Tyr-|-NHMec; and Leu-Tyr-Leu-|-Tyr-Trp, in which cleavage of the -Tyr-|-Leu- and -Tyr-|-Trp bonds also occurs).
Autocatalytic release of the core protein from the N-terminus of the togavirus structural polyprotein by hydrolysis of a -Trp-|-Ser- bond.
Selective hydrolysis of -Xaa-Xaa-|-Yaa- bonds in which each of the Xaa can be either Arg or Lys and Yaa can be either Ser or Ala.
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1)
Hydrolysis of four peptide bonds in the viral precursor polyprotein, commonly with Asp or Glu in the P6 position, Cys or Thr in P1 and Ser or Ala in P1'.
NAD(+) + glycine + sulfide = nicotinamide + ADP-5-ethyl-4-methylthiazole-2-carboxylate + 3 H(2)O
Maltose = alpha,alpha-trehalose
Androstan-3-alpha,17-beta-diol + NAD(+) = 17-beta-hydroxyandrostan-3-one + NADH
Peptidylproline (omega=180) = peptidylproline (omega=0)
2 bilirubin + O(2) = 2 biliverdin + 2 H(2)O
(2E,6E)-farnesyl diphosphate + isopentenyl diphosphate = diphosphate + geranylgeranyl diphosphate
Endohydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose, lichenin and cereal beta-D-glucans
L-histidinol phosphate + H(2)O = L-histidinol + phosphate
Endohydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides containing three or more (1->4)-alpha-linked D-glucose units
ATP + (R)-pantoate + beta-alanine = AMP + diphosphate + (R)-pantothenate
H(2)CO(3) = CO(2) + H(2)O
N(6)-(Delta(2)-isopentenyl)-adenosine 5'-phosphate + H(2)O = N(6)-(dimethylallyl)adenine + D-ribose 5'-phosphate
Eliminative cleavage of (1->4)-alpha-D-galacturonan to give oligosaccharides with 4-deoxy-alpha-D-galact-4-enuronosyl groups at their non-reducing ends
ATP + thymidine = ADP + thymidine 5'-phosphate
Geranylgeranyl diphosphate = (+)-copalyl diphosphate
Thiol-dependent hydrolysis of ester, thioester, amide, peptide and isopeptide bonds formed by the C-terminal Gly of ubiquitin (a 76-residue protein attached to proteins as an intracellular targeting signal).
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
Hydrolyzes single-stranded DNA or mismatched double-stranded DNA and polynucleotides, releasing free uracil
Hydrolysis of (1->4)-beta-D-glucosidic linkages in cellulose and similar substrates, releasing cellobiose from the reducing ends of the chains.
L-arginine + 2-oxoglutarate + O(2) = (3S)-3-hydroxy-L-arginine + succinate + CO(2)
Reduced plastocyanin + oxidized ferredoxin + light = oxidized plastocyanin + reduced ferredoxin
ATP + nucleoside diphosphate = ADP + nucleoside triphosphate
Endopeptidase with a preference for cleavage when the P1 position is occupied by Glu-|- and the P1' position is occupied by Gly-|-
Acetyl-CoA + 3-methyl-2-oxobutanoate + H(2)O = (2S)-2-isopropylmalate + CoA
An ultra-long-chain mono-unsaturated acyl-[acyl-carrier protein] + a malonyl-[acyl-carrier protein] = an ultra-long-chain mono-unsaturated 3-oxo-fatty acyl-[acyl-carrier protein] + CO(2) + a holo-[acyl-carrier protein]
ATP + AMP = 2 ADP
Protein L-glutamine + H(2)O = protein L-glutamate + NH(3)
ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate
ATP + 6-hydroxymethyl-7,8-dihydropterin = AMP + 6-hydroxymethyl-7,8-dihydropterin diphosphate
Creatinine + H(2)O = creatine
S-adenosyl-L-methionine + [peptide chain release factor 1 or 2]-L-glutamine = S-adenosyl-L-homocysteine + [peptide chain release factor 1 or 2]-N(5)-methyl-L-glutamine
ATP + (R)-pantothenate = ADP + (R)-4'-phosphopantothenate
ATP + glycerol = ADP + sn-glycerol 3-phosphate
Succinate + a quinone = fumarate + a quinol
GDP-beta-L-fucose + NADP(+) = GDP-4-dehydro-alpha-D-rhamnose + NADPH
Malonyl-CoA + an [acyl-carrier-protein] = CoA + a malonyl-[acyl-carrier-protein]
(1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate = 2-succinylbenzoate + H(2)O
Selective cleavage of Gln-|-Gly bond in the poliovirus polyprotein. In other picornavirus reactions Glu may be substituted for Gln, and Ser or Thr for Gly.
Selective cleavage of Tyr-|-Gly bond in picornavirus polyprotein.
4-(2-carboxyphenyl)-4-oxobutanoyl-CoA = 1,4-dihydroxy-2-naphthoyl-CoA + H(2)O
Adenosylcobalamin 5'-phosphate + H(2)O = coenzyme B12 + phosphate
Pyruvate + L-aspartate-4-semialdehyde = (4S)-4-hydroxy-2,3,4,5-tetrahydro-(2S)-dipicolinate + H(2)O
Random hydrolysis of (1->6)-alpha-D-mannosidic linkages in unbranched (1->6)-mannans
ATP + L-tyrosine + tRNA(Tyr) = AMP + diphosphate + L-tyrosyl-tRNA(Tyr)
(3S)-3-hydroxyacyl-CoA = trans-2(or 3)-enoyl-CoA + H(2)O
(1a) NAD(+) = cyclic ADP-ribose + nicotinamide
L-homoserine + NAD(P)(+) = L-aspartate 4-semialdehyde + NAD(P)H
ATP + H(2)O + a folded polypeptide = ADP + phosphate + an unfolded polypeptide
Preferential cleavage: (Ac)(2)-L-Lys-D-Ala-|-D-Ala. Also transpeptidation of peptidyl-alanyl moieties that are N-acyl substituents of D-alanine.
5'-deoxyadenosine + H(2)O = 5-deoxy-D-ribose + adenine
Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides
ATP + H(2)O = ADP + phosphate
5,6,7,8-tetrahydrofolate + NADP(+) = 7,8-dihydrofolate + NADPH
Release of N-terminal amino acids, preferentially methionine, from peptides and arylamides.
2-C-methyl-D-erythritol 4-phosphate + NADP(+) = 1-deoxy-D-xylulose 5-phosphate + NADPH
2 superoxide + 2 H(+) = O(2) + H(2)O(2)
The C-O-P bond 3' to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate
NADPH + NAD(+) + H(+)(Side 1) = NADP(+) + H(+)(Side 2) + NADH
L-lysyl-tRNA(Lys) + phosphatidylglycerol = tRNA(Lys) + 3-O-L-lysyl-1-O-phosphatidylglycerol
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Importin N-terminal domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 1116 amino acids
Theoretical weight: 123.53 KDa
Source organism: Kluyveromyces lactis
Expression system: Escherichia coli
UniProt:
  • Canonical: Q6CMF0 (Residues: 2-1113; Coverage: 100%)
Gene name: KLLA0_E20769g
Sequence domains: Importin-beta N-terminal domain

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 21-ID-D
Spacegroup: P1
Unit cell:
a: 79.05Å b: 88.12Å c: 102.01Å
α: 79.19° β: 80.03° γ: 70.98°
R-values:
R R work R free
0.21 0.21 0.235
Expression system: Escherichia coli