1 c2dx1A_
100.0
41
PDB header: signaling proteinChain: A: PDB Molecule: rho guanine nucleotide exchange factor 4;
PDBTitle: crystal structure of rhogef protein asef
2 c3jv3A_
100.0
38
PDB header: protein bindingChain: A: PDB Molecule: intersectin-1;
PDBTitle: structure of sh3e-dh unit of murine intersectin-1l
3 c3ky9B_
100.0
24
PDB header: apoptosisChain: B: PDB Molecule: proto-oncogene vav;
PDBTitle: autoinhibited vav1
4 c4gouA_
100.0
15
PDB header: signaling proteinChain: A: PDB Molecule: ehrgs-rhogef;
PDBTitle: crystal structure of an rgs-rhogef from entamoeba histolytica
5 c3ksyA_
100.0
20
PDB header: signaling proteinChain: A: PDB Molecule: son of sevenless homolog 1;
PDBTitle: crystal structure of the histone domain, dh-ph unit, and2 catalytic unit of the ras activator son of sevenless (sos)
6 c2vrwB_
100.0
25
PDB header: signaling proteinChain: B: PDB Molecule: proto-oncogene vav;
PDBTitle: critical structural role for the ph and c1 domains of the2 vav1 exchange factor
7 c3odoA_
100.0
21
PDB header: signaling proteinChain: A: PDB Molecule: rho guanine nucleotide exchange factor 1;
PDBTitle: crystal structure of the dh/ph domains of p115-rhogef
8 c1xcgA_
100.0
19
PDB header: signaling protein activator/signaling prChain: A: PDB Molecule: rho guanine nucleotide exchange factor 11;
PDBTitle: crystal structure of human rhoa in complex with dh/ph2 fragment of pdzrhogef
9 c1x86A_
100.0
18
PDB header: signaling protein/membrane proteinChain: A: PDB Molecule: rho guanine nucleotide exchange factor 12;
PDBTitle: crystal structure of the dh/ph domains of leukemia-associated rhogef2 in complex with rhoa
10 c1foeA_
100.0
27
PDB header: signaling protein, immune system/signaliChain: A: PDB Molecule: t-lymphoma invasion and metastasis inducing
PDBTitle: crystal structure of rac1 in complex with the guanine2 nucleotide exchange region of tiam1
11 c1griA_
100.0
24
PDB header: signal transduction adaptorChain: A: PDB Molecule: growth factor bound protein 2;
PDBTitle: grb2
12 c1xdvB_
100.0
19
PDB header: signaling proteinChain: B: PDB Molecule: son of sevenless protein homolog 1;
PDBTitle: experimentally phased structure of human the son of2 sevenless protein at 4.1 ang.
13 c3t06E_
100.0
19
PDB header: signaling proteinChain: E: PDB Molecule: rho guanine nucleotide exchange factor 11;
PDBTitle: crystal structure of the dh/ph fragment of pdzrhogef with n-terminal2 regulatory elements in complex with human rhoa
14 d1xcga1
100.0
19
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
15 c2dfkA_
100.0
29
PDB header: cell cycleChain: A: PDB Molecule: collybistin ii;
PDBTitle: crystal structure of the cdc42-collybistin ii complex
16 c3bjiA_
100.0
24
PDB header: signaling proteinChain: A: PDB Molecule: proto-oncogene vav;
PDBTitle: structural basis of promiscuous guanine nucleotide exchange2 by the t-cell essential vav1
17 c1ki1B_
100.0
24
PDB header: signaling proteinChain: B: PDB Molecule: intersectin long form;
PDBTitle: guanine nucleotide exchange region of intersectin in2 complex with cdc42
18 d1txda1
100.0
17
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
19 d1dbha1
100.0
19
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
20 c2z0qA_
100.0
27
PDB header: signaling proteinChain: A: PDB Molecule: rho guanine nucleotide exchange factor 3;
PDBTitle: crystal structure of dh-ph domain of rhogef3(xpln)
21 d2dfka1
not modelled
100.0
30
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
22 c3odwB_
not modelled
100.0
20
PDB header: signaling proteinChain: B: PDB Molecule: rho guanine nucleotide exchange factor 1;
PDBTitle: crystal structure of the linker-dh/ph domains of p115-rhogef
23 c2lqnA_
100.0
21
PDB header: signaling proteinChain: A: PDB Molecule: crk-like protein;
PDBTitle: solution structure of crkl
24 c3odxA_
not modelled
99.9
20
PDB header: signaling proteinChain: A: PDB Molecule: rho guanine nucleotide exchange factor 1;
PDBTitle: crystal structure of an n-terminally truncated linker-dh/ph domains of2 p115-rhogef
25 d1ki1b1
not modelled
99.9
23
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
26 c1dbhA_
not modelled
99.9
18
PDB header: gene regulationChain: A: PDB Molecule: protein (human sos 1);
PDBTitle: dbl and pleckstrin homology domains from hsos1
27 c4gyvA_
not modelled
99.9
26
PDB header: signaling proteinChain: A: PDB Molecule: ferm, rhogef and pleckstrin domain-containing protein 2;
PDBTitle: crystal strucure of the dh domain of farp2
28 d1foea1
not modelled
99.9
29
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
29 c1lb1C_
not modelled
99.9
27
PDB header: signaling proteinChain: C: PDB Molecule: guanine nucleotide exchange factor dbs;
PDBTitle: crystal structure of the dbl and pleckstrin homology2 domains of dbs in complex with rhoa
30 c4gzuB_
not modelled
99.9
28
PDB header: signaling proteinChain: B: PDB Molecule: ferm, rhogef and pleckstrin domain-containing protein 2;
PDBTitle: crystal strucure of the dh-ph-ph domain of farp2
31 c2rgnB_
not modelled
99.9
27
PDB header: signaling protein complexChain: B: PDB Molecule: rhoa/rac/cdc42 exchange factor;
PDBTitle: crystal structure of p63rhogef complex with galpha-q and rhoa
32 c3eo2A_
not modelled
99.9
27
PDB header: splicingChain: A: PDB Molecule: neuroepithelial cell-transforming gene 1 protein;
PDBTitle: crystal structure of the rhogef domain of human neuroepithelial cell-2 transforming gene 1 protein
33 c4h6yA_
not modelled
99.9
22
PDB header: signaling proteinChain: A: PDB Molecule: ferm, rhogef and pleckstrin domain-containing protein 1;
PDBTitle: crystal strucure of the dh-ph-ph domain of farp1
34 d1f5xa_
not modelled
99.9
26
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
35 c3mpxA_
not modelled
99.9
14
PDB header: lipid binding proteinChain: A: PDB Molecule: fyve, rhogef and ph domain-containing protein 5;
PDBTitle: crystal structure of the dh and ph-1 domains of human fgd5
36 c2l3sA_
99.9
26
PDB header: structural proteinChain: A: PDB Molecule: autoinhibited crk protein;
PDBTitle: structure of the autoinhibited crk
37 c2eyzA_
99.9
24
PDB header: signaling proteinChain: A: PDB Molecule: v-crk sarcoma virus ct10 oncogene homolog
PDBTitle: ct10-regulated kinase isoform ii
38 c1ng2A_
not modelled
99.9
21
PDB header: oxidoreductase activatorChain: A: PDB Molecule: neutrophil cytosolic factor 1;
PDBTitle: structure of autoinhibited p47phox
39 d1by1a_
not modelled
99.9
23
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
40 d1kz7a1
not modelled
99.9
27
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
41 c3gf9A_
not modelled
99.9
28
PDB header: endocytosisChain: A: PDB Molecule: intersectin 2;
PDBTitle: crystal structure of human intersectin 2 rhogef domain
42 c1ntyA_
not modelled
99.9
24
PDB header: signaling proteinChain: A: PDB Molecule: triple functional domain protein;
PDBTitle: crystal structure of the first dh/ph domain of trio to 1.7 a
43 d1ntya1
not modelled
99.9
24
Fold: DBL homology domain (DH-domain)Superfamily: DBL homology domain (DH-domain)Family: DBL homology domain (DH-domain)
44 c1ov3A_
99.9
27
PDB header: oxidoreductase activatorChain: A: PDB Molecule: neutrophil cytosol factor 1;
PDBTitle: structure of the p22phox-p47phox complex
45 c1mv3A_
99.8
10
PDB header: endocytosis/exocytosisChain: A: PDB Molecule: myc box dependent interacting protein 1;
PDBTitle: nmr structure of the tumor suppressor bin1: alternative2 splicing in melanoma and interaction with c-myc
46 c4avmA_
99.8
23
PDB header: protein bindingChain: A: PDB Molecule: bridging integrator 2;
PDBTitle: crystal structure of the n-bar domain of human bridging2 integrator 2.
47 c2ficA_
99.8
21
PDB header: endocytosis/exocytosis, membrane proteinChain: A: PDB Molecule: bridging integrator 1;
PDBTitle: the crystal structure of the bar domain from human bin1/amphiphysin ii2 and its implications for molecular recognition
48 d1urua_
99.7
23
Fold: BAR/IMD domain-likeSuperfamily: BAR/IMD domain-likeFamily: BAR domain
49 c1uruA_
99.7
23
PDB header: endocytosisChain: A: PDB Molecule: amphiphysin;
PDBTitle: amphiphysin bar domain from drosophila
50 c3sogA_
99.7
23
PDB header: structural proteinChain: A: PDB Molecule: amphiphysin;
PDBTitle: crystal structure of the bar domain of human amphiphysin, isoform 1
51 c2rqrA_
99.7
17
PDB header: protein bindingChain: A: PDB Molecule: engulfment and cell motility protein 1, linker, dedicator
PDBTitle: the solution structure of human dock2 sh3 domain - elmo1 peptide2 chimera complex
52 c2e5kA_
99.6
18
PDB header: protein bindingChain: A: PDB Molecule: suppressor of t-cell receptor signaling 1;
PDBTitle: solution structure of sh3 domain in suppressor of t-cell2 receptor signaling 1
53 d1ng2a2
99.6
23
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
54 c1bb9A_
99.6
17
PDB header: transferaseChain: A: PDB Molecule: amphiphysin 2;
PDBTitle: crystal structure of the sh3 domain from rat amphiphysin 2
55 d1bb9a_
99.6
17
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
56 d1uhca_
not modelled
99.6
83
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
57 d1udla_
not modelled
99.6
35
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
58 c2jxbA_
not modelled
99.6
21
PDB header: signaling protein complexChain: A: PDB Molecule: t-cell surface glycoprotein cd3 epsilon chain,
PDBTitle: structure of cd3epsilon-nck2 first sh3 domain complex
59 c2dlpA_
not modelled
99.6
20
PDB header: structural proteinChain: A: PDB Molecule: kiaa1783 protein;
PDBTitle: solution structure of the sh3 domain of human kiaa17832 protein
60 c2dybA_
not modelled
99.6
21
PDB header: oxidoreductaseChain: A: PDB Molecule: neutrophil cytosol factor 4;
PDBTitle: the crystal structure of human p40(phox)
61 d1ug1a_
not modelled
99.6
23
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
62 c3nmzD_
not modelled
99.6
15
PDB header: cell adhesion/cell cycleChain: D: PDB Molecule: rho guanine nucleotide exchange factor 4;
PDBTitle: crytal structure of apc complexed with asef
63 d1ov3a2
not modelled
99.6
24
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
64 d1i1ja_
not modelled
99.6
19
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
65 d1i4da_
not modelled
99.6
13
Fold: BAR/IMD domain-likeSuperfamily: BAR/IMD domain-likeFamily: Arfaptin, Rac-binding fragment
66 c2eyyA_
not modelled
99.5
20
PDB header: signaling proteinChain: A: PDB Molecule: v-crk sarcoma virus ct10 oncogene homolog
PDBTitle: ct10-regulated kinase isoform i
67 c2dl7A_
not modelled
99.5
27
PDB header: structural genomics, unknown functionChain: A: PDB Molecule: kiaa0769 protein;
PDBTitle: solution structure of the second sh3 domain of human2 kiaa0769 protein
68 c2ed0A_
not modelled
99.5
20
PDB header: signaling proteinChain: A: PDB Molecule: abl interactor 2;
PDBTitle: solution structure of the sh3 domain of abl interactor 22 (abelson interactor 2)
69 c1zlmA_
not modelled
99.5
37
PDB header: signaling proteinChain: A: PDB Molecule: osteoclast stimulating factor 1;
PDBTitle: crystal structure of the sh3 domain of human osteoclast2 stimulating factor
70 d1wlpb2
not modelled
99.5
17
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
71 c2dmoA_
not modelled
99.5
29
PDB header: signaling proteinChain: A: PDB Molecule: neutrophil cytosol factor 2;
PDBTitle: refined solution structure of the 1st sh3 domain from human2 neutrophil cytosol factor 2 (ncf-2)
72 c1x2qA_
not modelled
99.5
21
PDB header: signaling proteinChain: A: PDB Molecule: signal transducing adapter molecule 2;
PDBTitle: solution structure of the sh3 domain of the signal2 transducing adaptor molecule 2
73 c2d1xD_
not modelled
99.5
24
PDB header: cell invasionChain: D: PDB Molecule: cortactin isoform a;
PDBTitle: the crystal structure of the cortactin-sh3 domain and amap1-2 peptide complex
74 c1x43A_
not modelled
99.5
25
PDB header: endocytosis/exocytosisChain: A: PDB Molecule: sh3 domain grb2-like protein b1;
PDBTitle: solution structure of the sh3 domain of endophilin b12 (sh3g1b1)
75 c2cubA_
not modelled
99.5
23
PDB header: signaling proteinChain: A: PDB Molecule: cytoplasmic protein nck1;
PDBTitle: solution structure of the sh3 domain of the human2 cytoplasmic protein nck1
76 c2ysqA_
not modelled
99.5
18
PDB header: signaling proteinChain: A: PDB Molecule: rho guanine nucleotide exchange factor 9;
PDBTitle: solution structure of the sh3 domain from rho guanine2 nucleotide exchange factor 9
77 c2df6A_
not modelled
99.5
40
PDB header: signaling proteinChain: A: PDB Molecule: rho guanine nucleotide exchange factor 7;
PDBTitle: crystal structure of the sh3 domain of betapix in complex2 with a high affinity peptide from pak2
78 d1k4us_
not modelled
99.5
38
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
79 d1jqqa_
not modelled
99.5
25
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
80 c2ebpA_
not modelled
99.5
13
PDB header: cell adhesionChain: A: PDB Molecule: sam and sh3 domain-containing protein 1;
PDBTitle: solution structure of the sh3 domain from human sam and sh32 domain containing protein 1
81 c2egeA_
not modelled
99.5
16
PDB header: structural genomics, unknown functionChain: A: PDB Molecule: uncharacterized protein kiaa1666;
PDBTitle: solution structure of the third sh3 domain from human2 kiaa1666 protein
82 c2djqA_
not modelled
99.5
33
PDB header: structural genomics, unknown functionChain: A: PDB Molecule: sh3 domain containing ring finger 2;
PDBTitle: the solution structure of the first sh3 domain of mouse sh32 domain containing ring finger 2
83 d1uuea_
not modelled
99.5
32
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
84 c2yunA_
not modelled
99.5
24
PDB header: protein transportChain: A: PDB Molecule: nostrin;
PDBTitle: solution structure of the sh3 domain of human nostrin
85 d2v1ra1
not modelled
99.5
32
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
86 d1oeba_
not modelled
99.5
22
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
87 c2epdA_
not modelled
99.5
18
PDB header: protein bindingChain: A: PDB Molecule: rho gtpase-activating protein 4;
PDBTitle: solution structure of sh3 domain in rho-gtpase-activating2 protein 4
88 c1x6gA_
not modelled
99.5
14
PDB header: signaling proteinChain: A: PDB Molecule: megakaryocyte-associated tyrosine-protein kinase;
PDBTitle: solution structures of the sh3 domain of human2 megakaryocyte-associated tyrosine-protein kinase.
89 c2yt6A_
not modelled
99.5
27
PDB header: cell cycleChain: A: PDB Molecule: adult male urinary bladder cdna, riken full-
PDBTitle: solution structure of the sh3_1 domain of yamaguchi sarcoma2 viral (v-yes) oncogene homolog 1
90 c2dilA_
not modelled
99.5
27
PDB header: cell adhesionChain: A: PDB Molecule: proline-serine-threonine phosphatase-interacting
PDBTitle: solution structure of the sh3 domain of the human proline-2 serine-threonine phosphatase-interacting protein 1
91 c4glmD_
not modelled
99.5
27
PDB header: signaling proteinChain: D: PDB Molecule: dynamin-binding protein;
PDBTitle: crystal structure of the sh3 domain of dnmbp protein [homo sapiens]
92 c2nwmA_
not modelled
99.5
33
PDB header: cell adhesionChain: A: PDB Molecule: vinexin;
PDBTitle: solution structure of the first sh3 domain of human vinexin2 and its interaction with the peptides from vinculin
93 c2ed1A_
not modelled
99.5
31
PDB header: signaling proteinChain: A: PDB Molecule: 130 kda phosphatidylinositol 4,5-biphosphate-
PDBTitle: solution structure of the sh3 domain of 130 kda2 phosphatidylinositol 4,5-biphosphate-dependent arf1 gtpase-3 activating protein
94 c2oi3A_
not modelled
99.5
18
PDB header: transferaseChain: A: PDB Molecule: tyrosine-protein kinase hck;
PDBTitle: nmr structure analysis of the hematopoetic cell kinase sh32 domain complexed with an artificial high affinity ligand3 (pd1)
95 c2dl4A_
not modelled
99.5
34
PDB header: signaling proteinChain: A: PDB Molecule: protein stac;
PDBTitle: solution structure of the first sh3 domain of stac protein
96 c2dl3A_
not modelled
99.5
33
PDB header: cell adhesion, signaling proteinChain: A: PDB Molecule: sorbin and sh3 domain-containing protein 1;
PDBTitle: solution structure of the first sh3 domain of human sorbin2 and sh3 domain-containing protein 1
97 c1wx6A_
not modelled
99.5
21
PDB header: structural genomics, unknown functionChain: A: PDB Molecule: cytoplasmic protein nck2;
PDBTitle: solution structure of the sh3 domain of the human2 cytoplasmic protein nck2
98 c2pqhA_
not modelled
99.5
21
PDB header: structural proteinChain: A: PDB Molecule: spectrin alpha chain, brain;
PDBTitle: structure of sh3 chimera with a type ii ligand linked to the chain c-2 terminal
99 c2kbtA_
not modelled
99.5
36
PDB header: signaling proteinChain: A: PDB Molecule: chimera of proto-oncogene vav, linker,
PDBTitle: attachment of an nmr-invisible solubility enhancement tag2 (inset) using a sortase-mediated protein ligation method
100 d1utia_
not modelled
99.5
23
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
101 c2jmcA_
not modelled
99.5
19
PDB header: signaling proteinChain: A: PDB Molecule: spectrin alpha chain, brain and p41 peptide
PDBTitle: chimer between spc-sh3 and p41
102 c1wyxA_
not modelled
99.5
29
PDB header: cell adhesionChain: A: PDB Molecule: crk-associated substrate;
PDBTitle: the crystal structure of the p130cas sh3 domain at 1.1 a2 resolution
103 c2kymA_
not modelled
99.5
20
PDB header: signaling proteinChain: A: PDB Molecule: bud emergence protein 1;
PDBTitle: solution structure of the bem1p sh3-ci domain from l.elongisporus in2 complex with ste20p peptide
104 c3qwyA_
not modelled
99.5
28
PDB header: signaling proteinChain: A: PDB Molecule: cell death abnormality protein 2;
PDBTitle: ced-2
105 d1ujya_
not modelled
99.5
32
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
106 d1ycsb2
not modelled
99.5
31
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
107 c2xmfA_
not modelled
99.5
19
PDB header: motor proteinChain: A: PDB Molecule: myosin 1e sh3;
PDBTitle: myosin 1e sh3
108 c2dbmA_
not modelled
99.5
34
PDB header: transferase, signaling proteinChain: A: PDB Molecule: sh3-containing grb2-like protein 2;
PDBTitle: solution structures of the sh3 domain of human sh3-2 containing grb2-like protein 2
109 c2bz8B_
not modelled
99.5
24
PDB header: sh3 domainChain: B: PDB Molecule: sh3-domain kinase binding protein 1;
PDBTitle: n-terminal sh3 domain of cin85 bound to cbl-b peptide
110 d1uj0a_
not modelled
99.5
28
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
111 d1pwta_
not modelled
99.5
23
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
112 c2dbkA_
not modelled
99.5
15
PDB header: signaling proteinChain: A: PDB Molecule: crk-like protein;
PDBTitle: solution structures of the sh3 domain of human crk-like2 protein
113 c3qwxX_
not modelled
99.5
22
PDB header: signaling proteinChain: X: PDB Molecule: cell death abnormality protein 2;
PDBTitle: ced-2 1-174
114 c2yuoA_
not modelled
99.5
28
PDB header: signaling proteinChain: A: PDB Molecule: run and tbc1 domain containing 3;
PDBTitle: solution structure of the sh3 domain of mouse run and tbc12 domain containing 3
115 c2eqiA_
not modelled
99.5
29
PDB header: immune system, hydrolaseChain: A: PDB Molecule: phospholipase c, gamma 2;
PDBTitle: solution structure of the sh3 domain from phospholipase c,2 gamma 2
116 c2drmB_
not modelled
99.5
28
PDB header: contractile proteinChain: B: PDB Molecule: acanthamoeba myosin ib;
PDBTitle: acanthamoeba myosin i sh3 domain bound to acan125
117 c1negA_
not modelled
99.5
20
PDB header: structural proteinChain: A: PDB Molecule: spectrin alpha chain, brain;
PDBTitle: crystal structure analysis of n-and c-terminal labeled sh3-2 domain of alpha-chicken spectrin
118 d1nega_
not modelled
99.5
20
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
119 d1u06a1
not modelled
99.5
31
Fold: SH3-like barrelSuperfamily: SH3-domainFamily: SH3-domain
120 c2csqA_
not modelled
99.5
25
PDB header: endocytosis/exocytosisChain: A: PDB Molecule: rim binding protein 2;
PDBTitle: solution structure of the second sh3 domain of human rim-2 binding protein 2