Table 1. Proteins that co-purify with hUTP4/Cirhin identified by mass spectrometry.

Gene name	Alias	Swissprot accession	Unique peptides in experiment 1	Unique peptides in experiment 2
hUTP4/Cirhin+	CIRH1A	Q969X6	44	40
hUTP5	WDR43	Q15061	13	11
NOL11		Q9H8H0	8	4
hUTP15		Q8TED0	7	3
ACACA*		Q13085	6	8
hUTP17	WDR75	Q8IWA0	3	4

Only proteins that were identified in both biological duplicates and had at least five unique peptides identified between duplicates are included. The full list can be found in Table S1.

⁺Bait protein used for affinity purification.

^*Proteins that are repeatedly isolated with other bait proteins.