5OQI

Crystal Structure of a disulfide trapped single chain trimer composed of the MHC I heavy chain H-2Kb Y84C E63A mutant, beta-2microglobulin, and ovalbumin-derived peptide

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Beta-2-microglobulin,H-2 class I histocompatibility antigen, K-B alpha chain	polymer	431	48123.6	2	UniProt (P01887) UniProt (P01901) Pfam (PF07654) Pfam (PF00129) In PDB	Mus musculus (Mouse)	H-2K(B)
2		water	water		18.0	369	Chemie (HOH)

Sequence modifications

A, B: 24 - 122 (UniProt: P01887)

PDB	External Database	Details
Ser 1	-	expression tag
Ile 2	-	expression tag
Ile 3	-	expression tag
Asn 4	-	expression tag
Phe 5	-	expression tag
Glu 6	-	expression tag
Lys 7	-	expression tag
Leu 8	-	expression tag
Gly 9	-	expression tag
Cys 10	-	expression tag
Gly 11	-	expression tag
Ala 12	-	expression tag
Ser 13	-	expression tag
Gly	-	expression tag
Gly	-	expression tag
Gly	-	expression tag
Gly	-	expression tag
Ser	-	expression tag
Gly	-	expression tag
Gly	-	expression tag
Gly	-	expression tag
Gly	-	expression tag
Ser	-	expression tag
Gly	-	linker
Gly	-	linker
Gly	-	linker
Gly	-	linker
Ser	-	linker
Gly	-	linker
Gly	-	linker
Gly	-	linker
Gly	-	linker
Ser	-	linker
Gly	-	linker
Gly	-	linker
Gly	-	linker
Gly	-	linker
Ser	-	linker
Gly	-	linker
Gly	-	linker
Gly	-	linker
Gly	-	linker
Ser	-	linker

A, B: 143 - 425 (UniProt: P01901)

PDB	External Database	Details
Ala 205	Glu 84	engineered mutation
Cys 226	Tyr 105	engineered mutation
His 426	-	expression tag
His 427	-	expression tag
His 428	-	expression tag
His 429	-	expression tag
His 430	-	expression tag
His 431	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	96247.1
All*	Total formula weight	96247.1

*Water molecules are not included.