7AFH

Bacterial 30S ribosomal subunit assembly complex state C (head domain)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	1	16SrRNA (head domain of the 30S ribosome)	polymer	1541	499528.3	1		Escherichia coli
2	B	30S ribosomal protein S2	polymer	241	26781.7	1	UniProt (C3TPN2) Pfam (PF00318) UniProt (by SIFTS) (P0A7V0) In PDB	Escherichia coli
3	C	30S ribosomal protein S3	polymer	233	26031.3	1	UniProt (C3SQX2) Pfam (PF07650) Pfam (PF00189) UniProt (by SIFTS) (P0A7V3) In PDB	Escherichia coli
4	G	30S ribosomal protein S7	polymer	179	20055.2	1	UniProt (A0A5Q2GFB5) Pfam (PF00177) UniProt (by SIFTS) (P02359) In PDB	Escherichia coli
5	I	30S ribosomal protein S9	polymer	130	14886.3	1	UniProt (C3SRY2) Pfam (PF00380) UniProt (by SIFTS) (P0A7X3) In PDB	Escherichia coli
6	J	30S ribosomal protein S10	polymer	103	11755.6	1	UniProt (C3SQT7) Pfam (PF00338) UniProt (by SIFTS) (P0A7R5) In PDB	Escherichia coli
7	M	30S ribosomal protein S13	polymer	118	13128.5	1	UniProt (C3SR52) Pfam (PF00416) UniProt (by SIFTS) (P0A7S9) In PDB	Escherichia coli
8	N	30S ribosomal protein S14	polymer	101	11606.6	1	UniProt (C3SR07) Pfam (PF00253) UniProt (by SIFTS) (P0AG59) In PDB	Escherichia coli
9	S	30S ribosomal protein S19	polymer	92	10455.4	1	UniProt (C3SQW2) Pfam (PF00203) UniProt (by SIFTS) (P0A7U3) In PDB	Escherichia coli
10	1	MAGNESIUM ION	non-polymer		24.3	11	Chemie (MG)
11	B	ZINC ION	non-polymer		65.4	1	Chemie (ZN)

Contents of the asymmetric unit

Polymers	Number of chains	9
	Total formula weight	634228.6
Non-Polymers*	Number of molecules	12
	Total formula weight	332.8
All*	Total formula weight	634561.4

*Water molecules are not included.