7LFJ

MODEL OF MHC CLASS Ib H2-M3 WITH MOUSE ND1 N-TERMINAL HEPTAPEPTIDE, ALA MUTANT, REFINED AT 1.70 ANGSTROMS RESOLUTION

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D	Histocompatibility 2, M region locus 3	polymer	282	32650.7	2	UniProt (Q31093) Pfam (PF00129) Pfam (PF07654) In PDB	Mus musculus (Mouse)	MHC class I antigen H-2M3
2	B, E	Beta-2-microglobulin	polymer	99	11704.4	2	UniProt (P01887) Pfam (PF07654) In PDB	Mus musculus (Mouse)
3	C, F	Heptapeptide from NADH-ubiquinone oxidoreductase chain 1	polymer	7	883.1	2	UniProt (P03888) In PDB	Mus musculus	NADH dehydrogenase subunit 1
4	A	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	1	Chemie (NAG)
5	A	SODIUM ION	non-polymer		23.0	1	Chemie (NA)
6		water	water		18.0	480	Chemie (HOH)

Sequence modifications

A, D: 1 - 276 (UniProt: Q31093)

PDB	External Database	Details
-	Gly 299	deletion
His 277	-	expression tag
His 278	-	expression tag
His 279	-	expression tag
His 280	-	expression tag
His 281	-	expression tag
His 282	-	expression tag

B, E: 1 - 99 (UniProt: P01887)

PDB	External Database	Details
Asp 85	Ala 105	variant

C, F: 1 - 7 (UniProt: P03888)

PDB	External Database	Details
Ala 6	Ile 6	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	90476.1
Non-Polymers*	Number of molecules	2
	Total formula weight	244.2
All*	Total formula weight	90720.3

*Water molecules are not included.