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Table 1 The TCR-CD1d-Ag and TCR-MR1-Ag test cases

From: Modeling T cell receptor recognition of CD1-lipid and MR1-metabolite complexes

PDB code

     

Complex

TCR

Ligand

TCR name

TCR type

Ligand name

Binding RMSD1, Ã…

Difficulty2

3HUJ [15]

2EYS [16]

1ZT4 [17]

NKT15

Type I NKT

CD1d-α-GalCer

1.04

Rigid

4EI5 [5]

4EI6 [5]

2AKR [18]

XV19

Type II NKT

CD1d-sulfatide

1.08

Medium

4LHU [9]

4LFH [9]

1ZT4 [17]

9C2

γδ

CD1d-α-GalCer

0.90

Rigid

4MNG [10]

4MNH [10]

4MQ7 [10]

DP10.7

γδ

CD1d-sulfatide

0.68

Rigid

4L4T [8]3

4DZB [19]3

4GUP [3]

MAIT

MAIT

MR1-6FP

0.87

Rigid

  1. 1Backbone atom root-mean-square distance between interface residues in the bound structure and corresponding residues in the unbound structures.
  2. 2Docking difficulty, based on extent of binding conformational changes [20].
  3. 3The bound and unbound MAIT TCRs are closely related, with nearly identical α chains; the differing β chains (TRBV6 in 4L4T and TRBV20 in 4DZB) were excluded from RMSD calculations and evaluation of docking predictions.