| IPR057934 | Spt5, KOW domain repeat 7 | Domain |
| IPR041976 | Spt5, KOW domain repeat 3 | Domain |
| IPR041980 | Spt5, KOW domain repeat 6, metazoa | Domain |
| IPR039385 | NGN domain, eukaryotic | Domain |
| IPR014722 | Large ribosomal subunit protein uL2, domain 2 | Homologous Superfamily |
| IPR022581 | Spt5 transcription elongation factor, N-terminal | Domain |
| IPR024945 | Spt5 C-terminal domain | Domain |
| IPR057936 | Spt5, KOWx domain | Domain |
| IPR006645 | NusG-like, N-terminal | Domain |
| IPR041975 | Spt5, KOW domain repeat 2 | Domain |
| IPR039659 | Transcription elongation factor SPT5 | Family |
| IPR036735 | NusG, N-terminal domain superfamily | Homologous Superfamily |
| IPR008991 | Translation protein SH3-like domain superfamily | Homologous Superfamily |
| IPR041973 | Spt5, KOW domain repeat 1 | Domain |
| IPR005100 | NGN domain | Domain |
| IPR041977 | Spt5, KOW domain repeat 4 | Domain |
| IPR017071 | Transcription elongation factor Spt5, eukaryote | Family |
| IPR005824 | KOW | Domain |
| IPR041978 | Spt5, KOW domain repeat 5 | Domain |
| IPR036179 | Immunoglobulin-like domain superfamily | Homologous Superfamily |
| IPR003006 | Immunoglobulin/major histocompatibility complex, conserved site | Conserved Site |
| IPR013783 | Immunoglobulin-like fold | Homologous Superfamily |
| IPR007110 | Immunoglobulin-like domain | Domain |
| IPR050160 | Major Histocompatibility Complex/Immunoglobulin | Family |
| IPR003597 | Immunoglobulin C1-set | Domain |
| IPR015707 | Beta-2-Microglobulin | Family |
| IPR036179 | Immunoglobulin-like domain superfamily | Homologous Superfamily |
| IPR050208 | Antigen-presenting and immune regulatory MHC class I-related | Family |
| IPR003597 | Immunoglobulin C1-set | Domain |
| IPR010579 | MHC class I, alpha chain, C-terminal | Domain |
| IPR011161 | MHC class I-like antigen recognition-like | Domain |
| IPR011162 | MHC classes I/II-like antigen recognition protein | Homologous Superfamily |
| IPR001039 | MHC class I alpha chain, alpha1 alpha2 domains | Domain |
| IPR003006 | Immunoglobulin/major histocompatibility complex, conserved site | Conserved Site |
| IPR037055 | MHC class I-like antigen recognition-like superfamily | Homologous Superfamily |
| IPR013783 | Immunoglobulin-like fold | Homologous Superfamily |
| IPR007110 | Immunoglobulin-like domain | Domain |