4PZ6

PCE1 guanylyltransferase bound to SER2/SER5 phosphorylated RNA pol II CTD

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	mRNA-capping enzyme subunit alpha	polymer	403	47034.1	2	UniProt (P40997) Pfam (PF01331) Pfam (PF03919)	Schizosaccharomyces pombe (Fission yeast)	GTP--RNA guanylyltransferase, GTase, mRNA guanylyltransferase
2	C, D (P, Q)	DNA-directed RNA polymerase II subunit rpb1	polymer	21	2657.1	2	UniProt (P36594) Pfam (PF05001)	Schizosaccharomyces pombe	RNA polymerase II subunit 1, RNA polymerase II subunit B1, DNA-directed RNA polymerase III largest subunit
3	E (B)	GUANOSINE	non-polymer		283.2	1	Chemie (GMP) PubChem (135499520) PubChem (162360751) PubChem (135398635) PubChem (135402034) PubChem (135426840) PubChem (135440077) PubChem (135484501) PubChem (135508725) PubChem (135514572) PubChem (135538738) PubChem (135546397) PubChem (135699331) PubChem (135726185) PubChem (135768161) PubChem (135768162) PubChem (135796591) PubChem (135823787) PubChem (135976484) PubChem (136019960) PubChem (136029099) PubChem (136029343) PubChem (136032217) PubChem (136073062) PubChem (136073540) PubChem (136168113) PubChem (136200123) PubChem (136259572) PubChem (136263240) PubChem (136461600) PubChem (136474462) PubChem (136490162) PubChem (136594098) PubChem (136596777) PubChem (136612256) PubChem (136614128) PubChem (136835877) PubChem (136912867) PubChem (136996824) PubChem (137506101) PubChem (163824507) PubChem (166857379) PubChem (168265885) PubChem (173984522)
4	F, G, H, I (A, B, P, Q)	water	water		18.0	212	Chemie (HOH)

Sequence modifications

A, B: 1 - 402 (UniProt: P40997)

PDB	External Database	Details
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	99382.3
Non-Polymers*	Number of molecules	1
	Total formula weight	283.2
All*	Total formula weight	99665.6

*Water molecules are not included.