7LFM

MODEL OF MHC CLASS Ib H2-M3 WITH MOUSE ND1 N-TERMINAL HEPTAPEPTIDE, VAL MUTANT, TRICLINIC CELL, REFINED AT 1.60 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 Ib Antigen H2-M3, 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	911.1	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	493	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
Val 6	Ile 6	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	90532.3
Non-Polymers*	Number of molecules	2
	Total formula weight	244.2
All*	Total formula weight	90776.5

*Water molecules are not included.