Table 8.

Aminoacyl‐t RNA Synthetases

Protein	Subunits	PDB entriesa
Class I
Subclass Ia
ArgRS	α	1bs2, 1f7u, 1f7v, 1iq0
CysRS	α	li5, 1li7
IleRS	α	1ile, 1ffy, 1jzq, 1jzs, 1qu2, 1qu3
LeuRS	α	1h3n
MetRS	α, α2	1a8h, 1f4l, 1qqt
ValRS	α	1gax
LysRS Ib	α	1irx
Subclass Ib
GlnRS	α	1euq, 1euy, 1exd, 1gsg, 1gtr, 1gts, 1qrs, 1qrt, 1qru, 1qtq
GluRS	α	1g59, 1gln
Subclass Ic
TrpRS	α2	1d2r, 1i6k, 1i6l, 1i6m, 1m83, 1mau, 1maw, 1mb2
TyrRS	α2	1tya, 1tyb, 1tyc, 1tyd, 1h3f, 1jii, 1jij, 1jik, 1jil, 2ts1, 3ts1, 4ts1, 1h3e
Class II
Subclass IIa
GlyRSc	α2	1ati, 1b76, 1ggm
HisRS	α2	1h4v, 1qe0, 1adj, 1ady, 1htt, 1kmm, 1kmn
ProRS	α2	1hc7, 1h4q, 1h4s, 1h4t
SerRS	α2	1sry, 1ser, 1ses, 1set
ThrRS	α2	1evk, 1evl, 1fyf, 1kog, 1qf6
Subclass IIb
AspRS	α2	1l0w, 1b8a, 1eov, 1eqr, 1g51, 1asy, 1asz, 1coa, 1efw, 1il2
AsnRS	α2	11as, 12as
LysRS IIb	α2	1bbw, 1bbu, 1e1o, 1e1t, 1e22, 1e24, 1lyl
Subclass IIc
PheRS	(αβ)2	1ehz, 1pys, 1b70, 1b7y, 1eiy, 1jjc
AlaRSc	α4, α	–c
GlyRSd	(αβ)2	–c

^aSee Web‐Based Structural Bioinformatics and http://www.rcsb.org/pdb.

^bThere are both class I and class II LysRS

^cAs of 2003, structures have not been determined.

^dGlyRS is found in two subclasses: IIa and IIc.

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