Atomistry » Tungsten » PDB 2hhl-4z3w » 4phi
Atomistry »
  Tungsten »
    PDB 2hhl-4z3w »
      4phi »

Tungsten in PDB 4phi: Crystal Structure of Hewl with Hexatungstotellurate(VI)

Enzymatic activity of Crystal Structure of Hewl with Hexatungstotellurate(VI)

All present enzymatic activity of Crystal Structure of Hewl with Hexatungstotellurate(VI):
3.2.1.17;

Protein crystallography data

The structure of Crystal Structure of Hewl with Hexatungstotellurate(VI), PDB code: 4phi was solved by A.Bijelic, C.Molitor, S.G.Mauracher, R.Al-Oweini, U.Kortz, A.Rompel, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 29.25 / 1.81
Space group P 43 21 2
Cell size a, b, c (Å), α, β, γ (°) 60.010, 60.010, 261.840, 90.00, 90.00, 90.00
R / Rfree (%) 18.7 / 20

Other elements in 4phi:

The structure of Crystal Structure of Hewl with Hexatungstotellurate(VI) also contains other interesting chemical elements:

Tellurium (Te) 8 atoms
Sodium (Na) 6 atoms

Tungsten Binding Sites:

Pages:

>>> Page 1 <<< Page 2, Binding sites: 11 - 20; Page 3, Binding sites: 21 - 30; Page 4, Binding sites: 31 - 40; Page 5, Binding sites: 41 - 48;

Binding sites:

The binding sites of Tungsten atom in the Crystal Structure of Hewl with Hexatungstotellurate(VI) (pdb code 4phi). This binding sites where shown within 5.0 Angstroms radius around Tungsten atom.
In total 48 binding sites of Tungsten where determined in the Crystal Structure of Hewl with Hexatungstotellurate(VI), PDB code: 4phi:
Jump to Tungsten binding site number: 1; 2; 3; 4; 5; 6; 7; 8; 9; 10;

Tungsten binding site 1 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 1 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 1 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W201

b:27.2
occ:1.00
W1 A:TEW201 0.0 27.2 1.0
O6 A:TEW201 1.7 35.4 1.0
O5 A:TEW201 1.7 37.0 1.0
O4 A:TEW201 1.9 33.7 1.0
O3 A:TEW201 1.9 38.8 1.0
O1 A:TEW201 2.3 38.4 1.0
O2 A:TEW201 2.3 38.5 1.0
TE1 A:TEW201 3.3 29.5 1.0
W2 A:TEW201 3.3 28.7 1.0
W3 A:TEW201 3.3 28.2 1.0
HA D:LYS1 3.4 28.6 1.0
HG3 D:LYS1 3.6 26.0 1.0
O15 A:TEW201 3.7 35.9 1.0
O8 A:TEW201 3.7 35.4 1.0
O7 A:TEW201 3.8 38.1 1.0
H D:VAL2 3.8 20.3 1.0
O13 A:TEW201 3.9 37.2 1.0
HZ2 D:LYS1 4.1 31.4 1.0
HB2 D:LYS1 4.2 28.3 1.0
O A:HOH321 4.3 30.9 1.0
O A:HOH443 4.3 30.8 1.0
CA D:LYS1 4.3 22.4 1.0
O A:HOH368 4.3 25.4 1.0
O A:HOH329 4.4 30.9 1.0
CG D:LYS1 4.5 21.6 1.0
N D:VAL2 4.5 18.8 1.0
O16 A:TEW201 4.5 32.4 1.0
CB D:LYS1 4.5 22.5 1.0
O9 A:TEW201 4.6 33.7 1.0
O A:HOH428 4.6 30.9 1.0
O D:HOH315 4.6 27.8 1.0
HZ3 D:LYS1 4.6 31.4 1.0
O10 A:TEW201 4.7 39.9 1.0
O14 A:TEW201 4.8 37.0 1.0
NZ D:LYS1 4.8 24.9 1.0
HD2 D:LYS1 4.8 28.4 1.0
O11 A:TEW201 4.8 39.3 1.0
HD21 A:ASN65 4.9 26.5 1.0
O12 A:TEW201 4.9 38.9 1.0
C D:LYS1 5.0 22.1 1.0

Tungsten binding site 2 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 2 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 2 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W201

b:28.7
occ:1.00
W2 A:TEW201 0.0 28.7 1.0
O9 A:TEW201 1.7 33.7 1.0
O8 A:TEW201 1.7 35.4 1.0
O10 A:TEW201 1.9 39.9 1.0
O3 A:TEW201 1.9 38.8 1.0
O7 A:TEW201 2.2 38.1 1.0
O1 A:TEW201 2.3 38.4 1.0
W4 A:TEW201 3.3 30.1 1.0
TE1 A:TEW201 3.3 29.5 1.0
W1 A:TEW201 3.3 27.2 1.0
O19 A:TEW201 3.6 39.0 1.0
O6 A:TEW201 3.8 35.4 1.0
O2 A:TEW201 3.8 38.5 1.0
O12 A:TEW201 3.8 38.9 1.0
O A:HOH340 4.3 30.9 1.0
O A:HOH428 4.4 30.9 1.0
O A:HOH443 4.5 30.8 1.0
O5 A:TEW201 4.5 37.0 1.0
O18 A:TEW201 4.6 43.1 1.0
O17 A:TEW201 4.7 39.3 1.0
O4 A:TEW201 4.8 33.7 1.0
O11 A:TEW201 4.8 39.3 1.0
O A:HOH329 4.9 30.9 1.0
O13 A:TEW201 4.9 37.2 1.0

Tungsten binding site 3 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 3 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 3 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W201

b:28.2
occ:1.00
W3 A:TEW201 0.0 28.2 1.0
O15 A:TEW201 1.7 35.9 1.0
O16 A:TEW201 1.7 32.4 1.0
O14 A:TEW201 1.9 37.0 1.0
O4 A:TEW201 2.0 33.7 1.0
O2 A:TEW201 2.3 38.5 1.0
O13 A:TEW201 2.3 37.2 1.0
HD22 A:ASN65 3.3 26.5 1.0
TE1 A:TEW201 3.3 29.5 1.0
W6 A:TEW201 3.3 29.3 1.0
W1 A:TEW201 3.3 27.2 1.0
HA D:LYS1 3.5 28.6 1.0
O A:HOH471 3.6 30.8 1.0
HB3 A:PRO79 3.6 20.6 1.0
O5 A:TEW201 3.7 37.0 1.0
O11 A:TEW201 3.8 39.3 1.0
O31 A:TEW201 3.8 32.8 1.0
HD21 A:ASN65 3.8 26.5 1.0
O1 A:TEW201 3.8 38.4 1.0
ND2 A:ASN65 3.8 20.3 1.0
H1 D:LYS1 4.0 27.6 1.0
HB2 D:LYS1 4.1 28.3 1.0
H2 D:LYS1 4.1 27.6 1.0
HE21 D:GLN41 4.2 25.7 1.0
CA D:LYS1 4.3 22.4 1.0
O A:HOH368 4.3 25.4 1.0
O A:HOH321 4.3 30.9 1.0
N D:LYS1 4.3 21.8 1.0
HE22 D:GLN41 4.3 25.7 1.0
O23 A:TEW201 4.6 38.0 1.0
NE2 D:GLN41 4.6 21.8 1.0
O6 A:TEW201 4.6 35.4 1.0
CB A:PRO79 4.6 19.0 1.0
O D:HOH344 4.6 30.8 1.0
O A:HOH333 4.7 30.8 1.0
CB D:LYS1 4.7 22.5 1.0
O3 A:TEW201 4.8 38.8 1.0
O20 A:TEW201 4.8 35.6 1.0
O7 A:TEW201 4.8 38.1 1.0
O D:HOH367 4.8 24.2 1.0
O A:HOH329 4.9 30.9 1.0
HA A:PRO79 4.9 25.6 1.0
O12 A:TEW201 4.9 38.9 1.0
HB3 D:SER86 4.9 25.8 1.0
HG3 A:PRO79 5.0 23.2 1.0

Tungsten binding site 4 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 4 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 4 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W201

b:30.1
occ:1.00
W4 A:TEW201 0.0 30.1 1.0
O18 A:TEW201 1.7 43.1 1.0
O19 A:TEW201 1.7 39.0 1.0
O10 A:TEW201 1.9 39.9 1.0
O17 A:TEW201 2.0 39.3 1.0
O12 A:TEW201 2.3 38.9 1.0
O7 A:TEW201 2.3 38.1 1.0
W5 A:TEW201 3.3 30.9 1.0
W2 A:TEW201 3.3 28.7 1.0
TE1 A:TEW201 3.3 29.5 1.0
O9 A:TEW201 3.7 33.7 1.0
O21 A:TEW201 3.7 38.8 1.0
O11 A:TEW201 3.8 39.3 1.0
O1 A:TEW201 3.8 38.4 1.0
O A:HOH335 4.3 30.9 1.0
O A:HOH340 4.5 30.9 1.0
O8 A:TEW201 4.5 35.4 1.0
O22 A:TEW201 4.6 40.3 1.0
O20 A:TEW201 4.7 35.6 1.0
O3 A:TEW201 4.7 38.8 1.0
O2 A:TEW201 4.8 38.5 1.0
O13 A:TEW201 4.9 37.2 1.0

Tungsten binding site 5 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 5 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 5 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W201

b:30.9
occ:1.00
W5 A:TEW201 0.0 30.9 1.0
O22 A:TEW201 1.7 40.3 1.0
O21 A:TEW201 1.7 38.8 1.0
O17 A:TEW201 1.9 39.3 1.0
O20 A:TEW201 1.9 35.6 1.0
O11 A:TEW201 2.2 39.3 1.0
O12 A:TEW201 2.3 38.9 1.0
O A:HOH419 2.8 30.9 1.0
W4 A:TEW201 3.3 30.1 1.0
W6 A:TEW201 3.3 29.3 1.0
TE1 A:TEW201 3.3 29.5 1.0
O23 A:TEW201 3.6 38.0 1.0
O18 A:TEW201 3.7 43.1 1.0
O7 A:TEW201 3.8 38.1 1.0
O13 A:TEW201 3.8 37.2 1.0
O A:HOH305 4.1 30.9 1.0
O A:HOH395 4.1 27.5 1.0
HD22 A:ASN74 4.1 20.9 1.0
HD21 A:ASN74 4.3 20.9 1.0
O A:HOH424 4.4 30.9 1.0
O19 A:TEW201 4.5 39.0 1.0
O A:HOH347 4.5 30.8 1.0
ND2 A:ASN74 4.5 20.1 1.0
O31 A:TEW201 4.6 32.8 1.0
O14 A:TEW201 4.7 37.0 1.0
O10 A:TEW201 4.7 39.9 1.0
O2 A:TEW201 4.8 38.5 1.0
O A:HOH344 4.9 30.8 1.0
O A:HOH409 4.9 30.9 1.0
O A:HOH333 4.9 30.8 1.0
O1 A:TEW201 4.9 38.4 1.0

Tungsten binding site 6 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 6 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 6 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W201

b:29.3
occ:1.00
W6 A:TEW201 0.0 29.3 1.0
O31 A:TEW201 1.7 32.8 1.0
O23 A:TEW201 1.7 38.0 1.0
O14 A:TEW201 1.9 37.0 1.0
O20 A:TEW201 1.9 35.6 1.0
O13 A:TEW201 2.3 37.2 1.0
O11 A:TEW201 2.3 39.3 1.0
O A:HOH419 2.8 30.9 1.0
W5 A:TEW201 3.3 30.9 1.0
W3 A:TEW201 3.3 28.2 1.0
TE1 A:TEW201 3.3 29.5 1.0
HD3 A:PRO79 3.4 36.2 1.0
O22 A:TEW201 3.6 40.3 1.0
HD22 A:ASN65 3.6 26.5 1.0
HD21 A:ASN74 3.7 20.9 1.0
O16 A:TEW201 3.8 32.4 1.0
O12 A:TEW201 3.8 38.9 1.0
O2 A:TEW201 3.8 38.5 1.0
HB3 A:PRO79 3.8 20.6 1.0
HB3 A:ASN65 3.9 21.9 1.0
N A:PRO79 4.0 20.4 1.0
HA A:PRO79 4.1 25.6 1.0
CD A:PRO79 4.1 26.8 1.0
O A:HOH333 4.2 30.8 1.0
C A:ILE78 4.3 20.2 1.0
HD22 A:ASN74 4.3 20.9 1.0
ND2 A:ASN74 4.3 20.1 1.0
ND2 A:ASN65 4.3 20.3 1.0
CA A:PRO79 4.4 21.3 1.0
HA A:ILE78 4.4 23.8 1.0
O A:HOH409 4.4 30.9 1.0
CB A:PRO79 4.5 19.0 1.0
O21 A:TEW201 4.5 38.8 1.0
O A:HOH395 4.6 27.5 1.0
O15 A:TEW201 4.6 35.9 1.0
O A:ILE78 4.6 18.9 1.0
CB A:ASN65 4.7 18.1 1.0
HG3 A:PRO79 4.7 23.2 1.0
CG A:PRO79 4.7 20.6 1.0
O17 A:TEW201 4.7 39.3 1.0
O4 A:TEW201 4.8 33.7 1.0
HD21 A:ASN65 4.8 26.5 1.0
CA A:ILE78 4.8 21.0 1.0
O7 A:TEW201 4.8 38.1 1.0
HD2 A:PRO79 4.9 36.2 1.0
HB2 A:ASN65 4.9 21.9 1.0
O1 A:TEW201 4.9 38.4 1.0
CG A:ASN65 5.0 17.9 1.0

Tungsten binding site 7 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 7 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 7 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W202

b:0.3
occ:0.77
W1 A:TEW202 0.0 0.3 0.8
O6 A:TEW202 1.7 99.3 0.8
O5 A:TEW202 1.7 95.7 0.8
O4 A:TEW202 1.9 99.8 0.8
O3 A:TEW202 1.9 94.9 0.8
O1 A:TEW202 2.2 0.5 0.8
O2 A:TEW202 2.3 96.5 0.8
HG3 A:ARG125 2.9 92.8 0.6
W2 A:TEW202 3.3 97.7 0.8
W3 A:TEW202 3.3 91.3 0.8
TE1 A:TEW202 3.3 0.8 0.8
O8 A:TEW202 3.6 97.8 0.8
O15 A:TEW202 3.7 92.3 0.8
HD3 A:ARG125 3.8 97.6 0.6
CG A:ARG125 3.8 64.9 0.6
O7 A:TEW202 3.8 94.3 0.8
HE A:ARG125 3.8 91.3 0.6
O13 A:TEW202 3.9 0.3 0.8
NE A:ARG125 4.0 63.9 0.6
CD A:ARG125 4.1 67.1 0.6
HG2 A:ARG125 4.3 92.8 0.6
O16 A:TEW202 4.5 98.5 0.8
O9 A:TEW202 4.6 91.0 0.8
HA A:ARG125 4.7 67.0 0.6
O10 A:TEW202 4.7 99.7 0.8
O14 A:TEW202 4.7 94.5 0.8
CZ A:ARG125 4.8 63.4 0.6
HB2 A:ARG125 4.8 67.3 0.6
CB A:ARG125 4.8 52.4 0.6
O A:HOH302 4.9 30.8 1.0
O12 A:TEW202 4.9 0.5 0.8
O11 A:TEW202 4.9 97.6 0.8

Tungsten binding site 8 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 8 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 8 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W202

b:97.7
occ:0.77
W2 A:TEW202 0.0 97.7 0.8
O9 A:TEW202 1.7 91.0 0.8
O8 A:TEW202 1.7 97.8 0.8
O10 A:TEW202 1.9 99.7 0.8
O3 A:TEW202 1.9 94.9 0.8
O7 A:TEW202 2.2 94.3 0.8
O1 A:TEW202 2.3 0.5 0.8
W4 A:TEW202 3.2 89.1 0.8
TE1 A:TEW202 3.2 0.8 0.8
W1 A:TEW202 3.3 0.3 0.8
O A:HOH418 3.3 30.9 1.0
O19 A:TEW202 3.6 88.8 0.8
O6 A:TEW202 3.6 99.3 0.8
O12 A:TEW202 3.7 0.5 0.8
H A:GLY126 3.7 80.2 1.0
O2 A:TEW202 3.8 96.5 0.8
HA A:ARG125 3.9 67.0 0.6
HG3 A:ARG125 4.1 92.8 0.6
N A:GLY126 4.5 63.7 1.0
O5 A:TEW202 4.5 95.7 0.8
O18 A:TEW202 4.5 0.9 0.8
O17 A:TEW202 4.7 95.1 0.8
O4 A:TEW202 4.7 99.8 0.8
CA A:ARG125 4.8 52.3 0.6
O11 A:TEW202 4.8 97.6 0.8
O13 A:TEW202 4.9 0.3 0.8
CG A:ARG125 5.0 64.9 0.6

Tungsten binding site 9 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 9 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 9 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W202

b:91.3
occ:0.77
W3 A:TEW202 0.0 91.3 0.8
O15 A:TEW202 1.7 92.3 0.8
O16 A:TEW202 1.7 98.5 0.8
O14 A:TEW202 1.9 94.5 0.8
O4 A:TEW202 2.0 99.8 0.8
O2 A:TEW202 2.3 96.5 0.8
O13 A:TEW202 2.3 0.3 0.8
O A:HOH302 3.0 30.8 1.0
W6 A:TEW202 3.3 91.9 0.8
TE1 A:TEW202 3.3 0.8 0.8
W1 A:TEW202 3.3 0.3 0.8
HD3 A:ARG125 3.6 97.6 0.6
O31 A:TEW202 3.7 98.8 0.8
O1 A:TEW202 3.7 0.5 0.8
O5 A:TEW202 3.7 95.7 0.8
O11 A:TEW202 3.8 97.6 0.8
O A:HOH463 3.9 30.8 1.0
HG3 A:ARG125 4.2 92.8 0.6
HG2 A:ARG125 4.4 92.8 0.6
CD A:ARG125 4.5 67.1 0.6
CG A:ARG125 4.6 64.9 0.6
O23 A:TEW202 4.6 95.9 0.8
O6 A:TEW202 4.6 99.3 0.8
O20 A:TEW202 4.7 0.9 0.8
O3 A:TEW202 4.7 94.9 0.8
O12 A:TEW202 4.9 0.5 0.8
O7 A:TEW202 4.9 94.3 0.8

Tungsten binding site 10 out of 48 in 4phi

Go back to Tungsten Binding Sites List in 4phi
Tungsten binding site 10 out of 48 in the Crystal Structure of Hewl with Hexatungstotellurate(VI)


Mono view


Stereo pair view

A full contact list of Tungsten with other atoms in the W binding site number 10 of Crystal Structure of Hewl with Hexatungstotellurate(VI) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:W202

b:89.1
occ:0.77
W4 A:TEW202 0.0 89.1 0.8
O18 A:TEW202 1.7 0.9 0.8
O19 A:TEW202 1.7 88.8 0.8
O10 A:TEW202 1.9 99.7 0.8
O17 A:TEW202 2.0 95.1 0.8
O12 A:TEW202 2.3 0.5 0.8
O7 A:TEW202 2.3 94.3 0.8
W2 A:TEW202 3.2 97.7 0.8
TE1 A:TEW202 3.3 0.8 0.8
W5 A:TEW202 3.3 0.8 0.8
HA2 A:GLY126 3.6 84.0 1.0
O9 A:TEW202 3.6 91.0 0.8
H A:GLY126 3.6 80.2 1.0
O21 A:TEW202 3.8 98.4 0.8
O1 A:TEW202 3.8 0.5 0.8
O11 A:TEW202 3.9 97.6 0.8
H A:CYS127 4.3 72.1 1.0
CA A:GLY126 4.3 65.8 1.0
N A:GLY126 4.3 63.7 1.0
O8 A:TEW202 4.5 97.8 0.8
O A:CYS127 4.5 53.5 1.0
O22 A:TEW202 4.6 99.2 0.8
N A:CYS127 4.7 53.8 1.0
O3 A:TEW202 4.7 94.9 0.8
O20 A:TEW202 4.8 0.9 0.8
C A:GLY126 4.8 62.4 1.0
O13 A:TEW202 4.9 0.3 0.8
O2 A:TEW202 5.0 96.5 0.8

Reference:

A.Bijelic, C.Molitor, S.G.Mauracher, R.Al-Oweini, U.Kortz, A.Rompel. Hen Egg-White Lysozyme Crystallisation: Protein Stacking and Structure Stability Enhanced By A Tellurium(VI)-Centred Polyoxotungstate. Chembiochem V. 16 233 2015.
ISSN: ESSN 1439-7633
PubMed: 25521080
DOI: 10.1002/CBIC.201402597
Page generated: Wed Dec 16 02:34:45 2020

Last articles

Zn in 8WB0
Zn in 8WAX
Zn in 8WAU
Zn in 8WAZ
Zn in 8WAY
Zn in 8WAV
Zn in 8WAW
Zn in 8WAT
Zn in 8W7M
Zn in 8WD3
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy