| Domain | Name | Category | Type |
| IPR002318 | Alanine-tRNA ligase, class IIc | Family | Family |
| IPR003156 | DHHA1 domain | Domain | Domain |
| IPR009000 | Translation protein, beta-barrel domain superfamily | Family | Homologous superfamily |
| IPR012947 | Threonyl/alanyl tRNA synthetase, SAD | Domain | Domain |
| IPR018162 | Alanine-tRNA ligase, class IIc, anti-codon-binding domain superfamily | Family | Homologous superfamily |
| IPR018163 | Threonyl/alanyl tRNA synthetase, class II-like, putative editing domain superfamily | Family | Homologous superfamily |
| IPR018164 | Alanyl-tRNA synthetase, class IIc, N-terminal | Domain | Domain |
| IPR018165 | Alanyl-tRNA synthetase, class IIc, core domain | Domain | Domain |
| IPR023033 | Alanine-tRNA ligase, eukaryota/bacteria | Family | Family |