2C4K

Crystal structure of human phosphoribosylpyrophosphate synthetase- associated protein 39 (PAP39)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (A, B, C, D, E...)	PHOSPHORIBOSYL PYROPHOSPHATE SYNTHETASE-ASSOCIATED PROTEIN 1	polymer	370	41202.6	6	UniProt (Q14558) Pfam (PF13793) Pfam (PF14572)	HOMO SAPIENS (HUMAN)	39 KDA PHOSPHORIBOSYPYROPHOSPHATE SYNTHETASE-ASSOCIATED PROTEIN, PRPSAP1
2	G, H, J, K, L... (B, C, D, E, F)	SULFATE ION	non-polymer		96.1	7	Chemie (SO4)
3	I (B)	TRIS(HYDROXYETHYL)AMINOMETHANE	non-polymer		163.2	1	Chemie (TAM)
4	O, P, Q, R, S... (A, B, C, D, E...)	water	water		18.0	76	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: -18 - 4 (PDB: 2C4K)
A, B, C, D, E, F: 5 - 351 (UniProt: Q14558)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	247215.5
Non-Polymers*	Number of molecules	8
	Total formula weight	835.7
All*	Total formula weight	248051.1

*Water molecules are not included.