1KJV

TAP-B-associated rat MHC class I molecule

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Mature alpha chain of major histocompatibility complex class I antigen (HEAVY CHAIN)	polymer	284	33017.6	1	UniProt (Q95565) Pfam (PF00129) Pfam (PF07654) In PDB	Rattus norvegicus (Norway rat)	MHC class I RT1-A1c heavy chain
2	B	beta-2-microglobulin	polymer	100	11783.5	1	UniProt (P07151) Pfam (PF07654) In PDB	Rattus norvegicus (Norway rat)
3	P	peptide NPR	polymer	9	1014.2	1	UniProt (Q9JJP9) In PDB
4	A, B	SULFATE ION	non-polymer		96.1	4	Chemie (SO4)
5		water	water		18.0	424	Chemie (HOH)

Sequence modifications

A: 1 - 276 (UniProt: Q95565)

PDB	External Database	Details
Leu 277	-	expression tag
Glu 278	-	expression tag
His 279	-	expression tag
His 280	-	expression tag
His 281	-	expression tag
His 282	-	expression tag
His 283	-	expression tag
His 284	-	expression tag

B: 1 - 99 (UniProt: P07151)

PDB	External Database	Details
Met 0	-	initiating methionine

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	45815.3
Non-Polymers*	Number of molecules	4
	Total formula weight	384.3
All*	Total formula weight	46199.5

*Water molecules are not included.