0.016546
0.009553
0.000000
0.000000
0.019106
0.000000
0.000000
0.000000
0.005070
0.00000
0.00000
0.00000
Ponassi, M.
Cantoni, C.
Biassoni, R.
Conte, R.
Spallarossa, A.
Moretta, A.
Moretta, L.
Bolognesi, M.
Bordo, D.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
12
90.00
90.00
120.00
60.437
60.437
197.253
C3 H7 N O2
89.093
y
ALANINE
L-peptide linking
C6 H15 N4 O2 1
175.209
y
ARGININE
L-peptide linking
C4 H8 N2 O3
132.118
y
ASPARAGINE
L-peptide linking
C4 H7 N O4
133.103
y
ASPARTIC ACID
L-peptide linking
C3 H7 N O2 S
121.158
y
CYSTEINE
L-peptide linking
C5 H10 N2 O3
146.144
y
GLUTAMINE
L-peptide linking
C5 H9 N O4
147.129
y
GLUTAMIC ACID
L-peptide linking
C2 H5 N O2
75.067
y
GLYCINE
peptide linking
C6 H10 N3 O2 1
156.162
y
HISTIDINE
L-peptide linking
H2 O
18.015
WATER
non-polymer
C6 H13 N O2
131.173
y
ISOLEUCINE
L-peptide linking
C6 H13 N O2
131.173
y
LEUCINE
L-peptide linking
C6 H15 N2 O2 1
147.195
y
LYSINE
L-peptide linking
C5 H11 N O2 S
149.211
y
METHIONINE
L-peptide linking
C9 H11 N O2
165.189
y
PHENYLALANINE
L-peptide linking
C5 H9 N O2
115.130
y
PROLINE
L-peptide linking
C3 H7 N O3
105.093
y
SERINE
L-peptide linking
C4 H9 N O3
119.119
y
THREONINE
L-peptide linking
C11 H12 N2 O2
204.225
y
TRYPTOPHAN
L-peptide linking
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
UK
Structure
STRUE6
2005
0969-2126
11
725
10.1016/S0969-2126(03)00095-9
12791260
The Three-Dimensional Structure of the Human Nk Cell Receptor Nkp44, a Triggering Partner in Natural Cytotoxicity
2003
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100.0
1
SINGLE WAVELENGTH
M
x-ray
1
0.9792
1.0
BM30A
ESRF
0.9792
SYNCHROTRON
ESRF BEAMLINE BM30A
13957.725
NK CELL ACTIVATING RECEPTOR
IG DOMAIN, RESIDUES 19-130
1
man
polymer
18.015
water
117
nat
water
NKP44
no
no
MEGSHHHHHHSQAQSKAQVLQSVAGQTLTVRCQYPPTGSLYEKKGWCKEASALVCIRLVTSSKPRTMAWTSRFTIWDDPD
AGFFTVTMTDLREEDSGHYWCRIYRPSDNSVSKSVRFYLVVS
MEGSHHHHHHSQAQSKAQVLQSVAGQTLTVRCQYPPTGSLYEKKGWCKEASALVCIRLVTSSKPRTMAWTSRFTIWDDPD
AGFFTVTMTDLREEDSGHYWCRIYRPSDNSVSKSVRFYLVVS
A
polypeptide(L)
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
HUMAN
sample
9606
HOMO SAPIENS
562
ESCHERICHIA COLI
M15(PREP4)
1
3.0
67
5.00
pH 5.00
repository
Initial release
Version format compliance
Version format compliance
1
0
2003-06-11
1
1
2011-05-08
1
2
2011-07-13
PDBE
Y
PDBE
2003-03-10
REL
1
A
O
HOH
2014
6.35
1
A
O
HOH
2021
5.84
1
A
O
HOH
2039
5.95
HOH
water
THIS PROTEIN IS A TRIGGERING RECEPTOR THAT IS INVOLVED IN
TUMOR CELL LYSIS BY HUMAN NATURAL KILLER CELLS. CONTAINS
AN IMMUNOGLOBULIN FOLD.
HOH
2001
2
HOH
HOH
2001
A
HOH
2002
2
HOH
HOH
2002
A
HOH
2003
2
HOH
HOH
2003
A
HOH
2004
2
HOH
HOH
2004
A
HOH
2005
2
HOH
HOH
2005
A
HOH
2006
2
HOH
HOH
2006
A
HOH
2007
2
HOH
HOH
2007
A
HOH
2008
2
HOH
HOH
2008
A
HOH
2009
2
HOH
HOH
2009
A
HOH
2010
2
HOH
HOH
2010
A
HOH
2011
2
HOH
HOH
2011
A
HOH
2012
2
HOH
HOH
2012
A
HOH
2013
2
HOH
HOH
2013
A
HOH
2014
2
HOH
HOH
2014
A
HOH
2015
2
HOH
HOH
2015
A
HOH
2016
2
HOH
HOH
2016
A
HOH
2017
2
HOH
HOH
2017
A
HOH
2018
2
HOH
HOH
2018
A
HOH
2019
2
HOH
HOH
2019
A
HOH
2020
2
HOH
HOH
2020
A
HOH
2021
2
HOH
HOH
2021
A
HOH
2022
2
HOH
HOH
2022
A
HOH
2023
2
HOH
HOH
2023
A
HOH
2024
2
HOH
HOH
2024
A
HOH
2025
2
HOH
HOH
2025
A
HOH
2026
2
HOH
HOH
2026
A
HOH
2027
2
HOH
HOH
2027
A
HOH
2028
2
HOH
HOH
2028
A
HOH
2029
2
HOH
HOH
2029
A
HOH
2030
2
HOH
HOH
2030
A
HOH
2031
2
HOH
HOH
2031
A
HOH
2032
2
HOH
HOH
2032
A
HOH
2033
2
HOH
HOH
2033
A
HOH
2034
2
HOH
HOH
2034
A
HOH
2035
2
HOH
HOH
2035
A
HOH
2036
2
HOH
HOH
2036
A
HOH
2037
2
HOH
HOH
2037
A
HOH
2038
2
HOH
HOH
2038
A
HOH
2039
2
HOH
HOH
2039
A
HOH
2040
2
HOH
HOH
2040
A
HOH
2041
2
HOH
HOH
2041
A
HOH
2042
2
HOH
HOH
2042
A
HOH
2043
2
HOH
HOH
2043
A
HOH
2044
2
HOH
HOH
2044
A
HOH
2045
2
HOH
HOH
2045
A
HOH
2046
2
HOH
HOH
2046
A
HOH
2047
2
HOH
HOH
2047
A
HOH
2048
2
HOH
HOH
2048
A
HOH
2049
2
HOH
HOH
2049
A
HOH
2050
2
HOH
HOH
2050
A
HOH
2051
2
HOH
HOH
2051
A
HOH
2052
2
HOH
HOH
2052
A
HOH
2053
2
HOH
HOH
2053
A
HOH
2054
2
HOH
HOH
2054
A
HOH
2055
2
HOH
HOH
2055
A
HOH
2056
2
HOH
HOH
2056
A
HOH
2057
2
HOH
HOH
2057
A
HOH
2058
2
HOH
HOH
2058
A
HOH
2059
2
HOH
HOH
2059
A
HOH
2060
2
HOH
HOH
2060
A
HOH
2061
2
HOH
HOH
2061
A
HOH
2062
2
HOH
HOH
2062
A
HOH
2063
2
HOH
HOH
2063
A
HOH
2064
2
HOH
HOH
2064
A
HOH
2065
2
HOH
HOH
2065
A
HOH
2066
2
HOH
HOH
2066
A
HOH
2067
2
HOH
HOH
2067
A
HOH
2068
2
HOH
HOH
2068
A
HOH
2069
2
HOH
HOH
2069
A
HOH
2070
2
HOH
HOH
2070
A
HOH
2071
2
HOH
HOH
2071
A
HOH
2072
2
HOH
HOH
2072
A
HOH
2073
2
HOH
HOH
2073
A
HOH
2074
2
HOH
HOH
2074
A
HOH
2075
2
HOH
HOH
2075
A
HOH
2076
2
HOH
HOH
2076
A
HOH
2077
2
HOH
HOH
2077
A
HOH
2078
2
HOH
HOH
2078
A
HOH
2079
2
HOH
HOH
2079
A
HOH
2080
2
HOH
HOH
2080
A
HOH
2081
2
HOH
HOH
2081
A
HOH
2082
2
HOH
HOH
2082
A
HOH
2083
2
HOH
HOH
2083
A
HOH
2084
2
HOH
HOH
2084
A
HOH
2085
2
HOH
HOH
2085
A
HOH
2086
2
HOH
HOH
2086
A
HOH
2087
2
HOH
HOH
2087
A
HOH
2088
2
HOH
HOH
2088
A
HOH
2089
2
HOH
HOH
2089
A
HOH
2090
2
HOH
HOH
2090
A
HOH
2091
2
HOH
HOH
2091
A
HOH
2092
2
HOH
HOH
2092
A
HOH
2093
2
HOH
HOH
2093
A
HOH
2094
2
HOH
HOH
2094
A
HOH
2095
2
HOH
HOH
2095
A
HOH
2096
2
HOH
HOH
2096
A
HOH
2097
2
HOH
HOH
2097
A
HOH
2098
2
HOH
HOH
2098
A
HOH
2099
2
HOH
HOH
2099
A
HOH
2100
2
HOH
HOH
2100
A
HOH
2101
2
HOH
HOH
2101
A
HOH
2102
2
HOH
HOH
2102
A
HOH
2103
2
HOH
HOH
2103
A
HOH
2104
2
HOH
HOH
2104
A
HOH
2105
2
HOH
HOH
2105
A
HOH
2106
2
HOH
HOH
2106
A
HOH
2107
2
HOH
HOH
2107
A
HOH
2108
2
HOH
HOH
2108
A
HOH
2109
2
HOH
HOH
2109
A
HOH
2110
2
HOH
HOH
2110
A
HOH
2111
2
HOH
HOH
2111
A
HOH
2112
2
HOH
HOH
2112
A
HOH
2113
2
HOH
HOH
2113
A
HOH
2114
2
HOH
HOH
2114
A
HOH
2115
2
HOH
HOH
2115
A
HOH
2116
2
HOH
HOH
2116
A
HOH
2117
2
HOH
HOH
2117
A
n
1
-10
A
n
2
-9
A
n
3
-8
A
n
4
-7
A
n
5
-6
A
n
6
-5
A
n
7
-4
A
n
8
-3
A
n
9
-2
A
n
10
-1
A
n
11
1
A
n
12
2
A
n
13
3
A
n
14
4
A
SER
5
n
15
SER
5
A
LYS
6
n
16
LYS
6
A
ALA
7
n
17
ALA
7
A
GLN
8
n
18
GLN
8
A
VAL
9
n
19
VAL
9
A
LEU
10
n
20
LEU
10
A
GLN
11
n
21
GLN
11
A
SER
12
n
22
SER
12
A
VAL
13
n
23
VAL
13
A
ALA
14
n
24
ALA
14
A
GLY
15
n
25
GLY
15
A
GLN
16
n
26
GLN
16
A
THR
17
n
27
THR
17
A
LEU
18
n
28
LEU
18
A
THR
19
n
29
THR
19
A
VAL
20
n
30
VAL
20
A
ARG
21
n
31
ARG
21
A
CYS
22
n
32
CYS
22
A
GLN
23
n
33
GLN
23
A
TYR
24
n
34
TYR
24
A
PRO
25
n
35
PRO
25
A
PRO
26
n
36
PRO
26
A
THR
27
n
37
THR
27
A
GLY
28
n
38
GLY
28
A
SER
29
n
39
SER
29
A
LEU
30
n
40
LEU
30
A
TYR
31
n
41
TYR
31
A
GLU
32
n
42
GLU
32
A
LYS
33
n
43
LYS
33
A
LYS
34
n
44
LYS
34
A
GLY
35
n
45
GLY
35
A
TRP
36
n
46
TRP
36
A
CYS
37
n
47
CYS
37
A
LYS
38
n
48
LYS
38
A
GLU
39
n
49
GLU
39
A
ALA
40
n
50
ALA
40
A
SER
41
n
51
SER
41
A
ALA
42
n
52
ALA
42
A
LEU
43
n
53
LEU
43
A
VAL
44
n
54
VAL
44
A
CYS
45
n
55
CYS
45
A
ILE
46
n
56
ILE
46
A
ARG
47
n
57
ARG
47
A
LEU
48
n
58
LEU
48
A
VAL
49
n
59
VAL
49
A
THR
50
n
60
THR
50
A
SER
51
n
61
SER
51
A
SER
52
n
62
SER
52
A
LYS
53
n
63
LYS
53
A
PRO
54
n
64
PRO
54
A
ARG
55
n
65
ARG
55
A
THR
56
n
66
THR
56
A
MET
57
n
67
MET
57
A
ALA
58
n
68
ALA
58
A
TRP
59
n
69
TRP
59
A
THR
60
n
70
THR
60
A
SER
61
n
71
SER
61
A
ARG
62
n
72
ARG
62
A
PHE
63
n
73
PHE
63
A
THR
64
n
74
THR
64
A
ILE
65
n
75
ILE
65
A
TRP
66
n
76
TRP
66
A
ASP
67
n
77
ASP
67
A
ASP
68
n
78
ASP
68
A
PRO
69
n
79
PRO
69
A
ASP
70
n
80
ASP
70
A
ALA
71
n
81
ALA
71
A
GLY
72
n
82
GLY
72
A
PHE
73
n
83
PHE
73
A
PHE
74
n
84
PHE
74
A
THR
75
n
85
THR
75
A
VAL
76
n
86
VAL
76
A
THR
77
n
87
THR
77
A
MET
78
n
88
MET
78
A
THR
79
n
89
THR
79
A
ASP
80
n
90
ASP
80
A
LEU
81
n
91
LEU
81
A
ARG
82
n
92
ARG
82
A
GLU
83
n
93
GLU
83
A
GLU
84
n
94
GLU
84
A
ASP
85
n
95
ASP
85
A
SER
86
n
96
SER
86
A
GLY
87
n
97
GLY
87
A
HIS
88
n
98
HIS
88
A
TYR
89
n
99
TYR
89
A
TRP
90
n
100
TRP
90
A
CYS
91
n
101
CYS
91
A
ARG
92
n
102
ARG
92
A
ILE
93
n
103
ILE
93
A
TYR
94
n
104
TYR
94
A
ARG
95
n
105
ARG
95
A
PRO
96
n
106
PRO
96
A
SER
97
n
107
SER
97
A
ASP
98
n
108
ASP
98
A
ASN
99
n
109
ASN
99
A
SER
100
n
110
SER
100
A
VAL
101
n
111
VAL
101
A
SER
102
n
112
SER
102
A
LYS
103
n
113
LYS
103
A
SER
104
n
114
SER
104
A
VAL
105
n
115
VAL
105
A
ARG
106
n
116
ARG
106
A
PHE
107
n
117
PHE
107
A
TYR
108
n
118
TYR
108
A
LEU
109
n
119
LEU
109
A
VAL
110
n
120
VAL
110
A
VAL
111
n
121
VAL
111
A
SER
112
n
122
SER
112
A
author_and_software_defined_assembly
PQS
2
dimeric
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
1_555
x,y,z
identity operation
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
4_755
-x+2,-y,z
crystal symmetry operation
120.8740000000
0.0000000000
0.0000000000
A
N
GLN
8
A
N
GLN
18
A
O
ARG
106
A
O
ARG
116
A
N
LEU
109
A
N
LEU
119
A
O
GLY
87
A
O
GLY
97
A
N
TYR
94
A
N
TYR
104
A
O
LYS
33
A
O
LYS
43
A
N
ALA
40
A
N
ALA
50
A
O
VAL
44
A
O
VAL
54
A
N
CYS
22
A
N
CYS
32
A
O
PHE
74
A
O
PHE
84
A
N
THR
77
A
N
THR
87
A
O
THR
64
A
O
THR
74
1
A
MET
-10
A
MET
1
1
Y
1
A
GLU
-9
A
GLU
2
1
Y
1
A
GLY
-8
A
GLY
3
1
Y
1
A
SER
-7
A
SER
4
1
Y
1
A
HIS
-6
A
HIS
5
1
Y
1
A
HIS
-5
A
HIS
6
1
Y
1
A
HIS
-4
A
HIS
7
1
Y
1
A
HIS
-3
A
HIS
8
1
Y
1
A
HIS
-2
A
HIS
9
1
Y
1
A
HIS
-1
A
HIS
10
1
Y
1
A
SER
1
A
SER
11
1
Y
1
A
GLN
2
A
GLN
12
1
Y
1
A
ALA
3
A
ALA
13
1
Y
1
A
GLN
4
A
GLN
14
1
Y
1
A
A
CD
OE2
GLU
GLU
39
39
0.081
0.011
1.252
1.333
N
1
A
A
C
O
SER
SER
112
112
-0.323
0.019
1.229
0.906
N
1
A
ALA
58
-65.29
93.80
1
A
TRP
59
-73.22
-140.73
1
A
THR
60
97.54
67.61
1
A
SER
61
66.32
-138.42
1
A
ASP
98
-145.80
10.42
0.2446
0.2399
0.2399
2.2
100
11487
98.8
RANDOM
1
THROUGHOUT
0.0
SIRAS
0.32
5.00
0.30
2.2
100
117
981
0
0
864
0.021
2.08
27.8
1.87
2.28
10
90.0
2.200
20.000
1HKF
11487
2.000
0.07400
1
23.6000
31.000
99.6
0.52300
2.00
2.20
5.700
1
96.8
refinement
CNS
1.0
data reduction
DENZO
data scaling
SCALEPACK
NK CELL ACTIVATING RECEPTOR
The three dimensional structure of NK cell receptor Nkp44, a triggering partner in natural cytotoxicity
1
N
N
2
N
N
A
ARG
82
A
ARG
92
HELX_P
A
SER
86
A
SER
96
5
1
5
disulf
2.035
A
CYS
22
A
SG
CYS
32
1_555
A
CYS
91
A
SG
CYS
101
1_555
disulf
2.067
A
CYS
37
A
SG
CYS
47
1_555
A
CYS
45
A
SG
CYS
55
1_555
RECEPTOR
NATURAL CYTOTOXICITY RECEPTOR, NKP44, RECEPTOR, IMMUNOGLOBULIN DOMAIN
1HKF
PDB
1
1HKF
O95944
UNP
1
O95944
-10
-1
1HKF
-10
-1
1HKF
A
1
1
10
19
130
1HKF
1
112
O95944
A
2
11
122
5
3
parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
GLN
8
A
GLN
18
A
VAL
13
A
VAL
23
A
VAL
101
A
VAL
111
A
SER
112
A
SER
122
A
GLY
87
A
GLY
97
A
TYR
94
A
TYR
104
A
LYS
33
A
LYS
43
A
SER
41
A
SER
51
A
VAL
44
A
VAL
54
A
SER
51
A
SER
61
A
LEU
18
A
LEU
28
A
GLN
23
A
GLN
33
A
PHE
73
A
PHE
83
A
MET
78
A
MET
88
A
PHE
63
A
PHE
73
A
ASP
67
A
ASP
77
180
P 62 2 2