SMTL ID : 1acm.1

ARGININE 54 IN THE ACTIVE SITE OF ESCHERICHIA COLI ASPARTATE TRANSCARBAMOYLASE IS CRITICAL FOR CATALYSIS: A SITE-SPECIFIC MUTAGENESIS, NMR AND X-RAY CRYSTALLOGRAPHY STUDY

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

hetero-6-6-mer

Ligands

6 x PAL: N-(PHOSPHONACETYL)-L-ASPARTIC ACID(Non-covalent)

PAL.1: 16 residues within 4Å: Chain A: A.51, S.52, T.53, A.54, T.55, R.105, H.134, Q.137, R.167, T.168, R.229, Q.231, L.267, P.268 Chain E: S.80, K.84 19 PLIP interactions: 14 interactions with chain A, 5 interactions with chain E Hydrophobic interactions: A:T.168 Hydrogen bonds: A:S.52, A:T.53, A:A.54, A:T.55, A:T.55, A:R.105, A:R.105, A:Q.231, A:L.267, E:S.80, E:S.80, E:K.84 Salt bridges: A:R.105, A:H.134, A:R.167, A:R.229, E:K.84, E:K.84 PAL.3: 15 residues within 4Å: Chain C: S.52, T.53, A.54, T.55, R.105, H.134, Q.137, R.167, T.168, R.229, Q.231, L.267, P.268 Chain K: S.80, K.84 20 PLIP interactions: 14 interactions with chain C, 6 interactions with chain K Hydrophobic interactions: C:T.168 Hydrogen bonds: C:T.53, C:A.54, C:T.55, C:T.55, C:R.105, C:R.105, C:Q.231, C:L.267, K:S.80, K:S.80, K:S.80 Water bridges: C:Q.137, K:K.84 Salt bridges: C:R.105, C:H.134, C:R.167, C:R.229, K:K.84, K:K.84 PAL.5: 16 residues within 4Å: Chain E: A.51, S.52, T.53, A.54, T.55, R.105, H.134, Q.137, R.167, T.168, R.229, Q.231, L.267, P.268 Chain I: S.80, K.84 19 PLIP interactions: 5 interactions with chain I, 14 interactions with chain E Hydrogen bonds: I:S.80, I:S.80, I:K.84, E:S.52, E:T.53, E:A.54, E:T.55, E:T.55, E:R.105, E:R.105, E:Q.231, E:L.267 Salt bridges: I:K.84, I:K.84, E:R.105, E:H.134, E:R.167, E:R.229 Hydrophobic interactions: E:T.168 PAL.7: 15 residues within 4Å: Chain C: S.80, K.84 Chain G: S.52, T.53, A.54, T.55, R.105, H.134, Q.137, R.167, T.168, R.229, Q.231, L.267, P.268 20 PLIP interactions: 14 interactions with chain G, 6 interactions with chain C Hydrophobic interactions: G:T.168 Hydrogen bonds: G:T.53, G:A.54, G:T.55, G:T.55, G:R.105, G:R.105, G:Q.231, G:L.267, C:S.80, C:S.80, C:S.80 Water bridges: G:Q.137, C:K.84 Salt bridges: G:R.105, G:H.134, G:R.167, G:R.229, C:K.84, C:K.84 PAL.9: 16 residues within 4Å: Chain A: S.80, K.84 Chain I: A.51, S.52, T.53, A.54, T.55, R.105, H.134, Q.137, R.167, T.168, R.229, Q.231, L.267, P.268 19 PLIP interactions: 14 interactions with chain I, 5 interactions with chain A Hydrophobic interactions: I:T.168 Hydrogen bonds: I:S.52, I:T.53, I:A.54, I:T.55, I:T.55, I:R.105, I:R.105, I:Q.231, I:L.267, A:S.80, A:S.80, A:K.84 Salt bridges: I:R.105, I:H.134, I:R.167, I:R.229, A:K.84, A:K.84 PAL.11: 15 residues within 4Å: Chain G: S.80, K.84 Chain K: S.52, T.53, A.54, T.55, R.105, H.134, Q.137, R.167, T.168, R.229, Q.231, L.267, P.268 20 PLIP interactions: 14 interactions with chain K, 6 interactions with chain G Hydrophobic interactions: K:T.168 Hydrogen bonds: K:T.53, K:A.54, K:T.55, K:T.55, K:R.105, K:R.105, K:Q.231, K:L.267, G:S.80, G:S.80, G:S.80 Water bridges: K:Q.137, G:K.84 Salt bridges: K:R.105, K:H.134, K:R.167, K:R.229, G:K.84, G:K.84

6 x ZN: ZINC ION(Non-covalent)

ZN.2: 4 residues within 4Å: Chain B: C.109, C.114, C.138, C.141 4 PLIP interactions: 4 interactions with chain B Metal complexes: B:C.109, B:C.114, B:C.138, B:C.141 ZN.4: 4 residues within 4Å: Chain D: C.109, C.114, C.138, C.141 4 PLIP interactions: 4 interactions with chain D Metal complexes: D:C.109, D:C.114, D:C.138, D:C.141 ZN.6: 4 residues within 4Å: Chain F: C.109, C.114, C.138, C.141 4 PLIP interactions: 4 interactions with chain F Metal complexes: F:C.109, F:C.114, F:C.138, F:C.141 ZN.8: 4 residues within 4Å: Chain H: C.109, C.114, C.138, C.141 4 PLIP interactions: 4 interactions with chain H Metal complexes: H:C.109, H:C.114, H:C.138, H:C.141 ZN.10: 4 residues within 4Å: Chain J: C.109, C.114, C.138, C.141 4 PLIP interactions: 4 interactions with chain J Metal complexes: J:C.109, J:C.114, J:C.138, J:C.141 ZN.12: 4 residues within 4Å: Chain L: C.109, C.114, C.138, C.141 4 PLIP interactions: 4 interactions with chain L Metal complexes: L:C.109, L:C.114, L:C.138, L:C.141

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Stebbins, J.W. et al., Arginine 54 in the active site of Escherichia coli aspartate transcarbamoylase is critical for catalysis: a site-specific mutagenesis, NMR, and X-ray crystallographic study. Protein Sci. (1992)

Release Date

1992-07-15

Peptides

ASPARTATE CARBAMOYLTRANSFERASE, CATALYTIC CHAIN: ACEGIK
ASPARTATE CARBAMOYLTRANSFERASE REGULATORY CHAIN: BDFHJL

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

C
C

E
A

G
C

I
A

K
C

B
B

D
D

F
B

H
D

J
B

L
D

ASPARTATE CARBAMOYLTRANSFERASE, CATALYTIC CHAIN

ASPARTATE CARBAMOYLTRANSFERASE REGULATORY CHAIN

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