. 2008 Jul 24;59(12):3347–3357. doi: 10.1093/jxb/ern184

Table 2.

List of skin proteins that accumulate differentially in potato tuber skin compared to tuber flesh

Spot no.	Functional categories	Potato TA^a/EST	Match peptides^b	Cover (%)^c	MW(kDa)/pI
Spot no.	Functional categories	Potato TA^a/EST	Match peptides^b	Cover (%)^c	Experimental	Theoretical
	Cell proliferation
1	Actin (ACT)	TA24741	10	21	43/4.8	41.8/5.31
2^d	P23 tumor protein-like (P23/TCTP)	TA24105	2	10	17.84/4.84	18.85/4.58
3^d	Proteasome α-7 subunit	TA26206	6	20	27.6/6.3	27.1/7
4	Proteasome β-2A subunit	TA32826	8	30	21.1/6.48	22.1/6.2
5	Translation initiation factor 5A-3, eukaryotic (eIF-5A3)	TA23158	6	30	16.25/6.25	17.57/5.78
6	Tubulin α-chain	TA24049	11	32	49/5.2	49.75/4.93
	Signal transduction—cell wall
7	Remorin (REM)	DN921712	4	16	30.4/6.14	21.8/6.14
	General metabolism
8^d	UDP-glucose:protein transglucosylase (UPTG2)	TA24497	9	21	36.9/5.8	41.15/5.61
8^d	Disulphide-isomerase protein (PDI)	TA25269	5	17	36.9/5.8	39.52/5.62
9^d	Triosephosphate isomerase, (TPI) cytosolic isoform	TA25726	3	16	24.4/5.8	21.6/5.7
	Oxidative respiratory chain
3^d	APFI (hypothetical protein F8G22.2)	TA26786	4	12	27.6/6.3	29.5/6.8
2^d	NADH-ubiquinone oxidoreductase 18 kDa subunit, mitochondrial precursor	TA29219	2	6	17.84/4.84	19.76/4.94
10	NADH:FMN oxidoreductase-like protein	TA30877	5	22	21.1/6.38	21.5/6.2
	One-carbon (C₁) metabolism
11	Glutamate-ammonia ligase (GS1)	TA25277	5	21	38/4.5–4.8	38.7/5.6
12	Serine hydroxymethyltransferase 4 (SHMT4)	TA24707	10	28	53.6/6.4	51.7/6.8^e
13, 14	Methionine synthase (MS)	TA24454	11–16	19–30	78.5/6.46–6.57	84.6/5.93
	Abiotic and biotic stress
15	Plasma-membrane polypeptide (DREPP)	TA26238	9	25	26/5.2	21.9/5.02
	Oxidative stress
16	Ascorbate peroxidase 1 (APX1), cytosolic	TA24251	12	35	25.4/5.93	27.47/5.56
17	Catalase isozyme 2 (CAT2)	TA23780	17	35	53.6/6.4	56.5/6.56
18	Catechol oxidase B, chloroplast precursor	TA25457	6	10	58.2/5.9	66.4/6.3
19^f	Polyphenol oxidase (PPO)	TA24911	7	11	56/6	66.7/6.8
	Plant defence
20^d	Cysteine protease 1 (CYP1)	CK256743	3	8	38.5/4.86	32/5.8
21	Elicitor-inducible protein EIG-J7	TA32425	3	12	16.1/6.57	20/6.88
22^f	Elicitor-inducible protein EIG-J7	TA39811	4	15	15/4.86	20.3/6.08^e
23	Endochitinase 2 precursor	TA24214	4	18	28/6.1	34.3/5.93
24	Endochitinase 2 precursor	CN213814	2	11	27.6/6.3	28.6/7.48
20^d,25–28	Patatin	TA23294	9	10–27	39.6/5.26	43.4/5.11
29	Patatin putative homolog	TA35081	5	14	43/6	43.5/6.5
30,31	Patatin protein 07	TA23344	11	26	36.7–38.5/5.36–5.6	42.6/5.2
32	Pathogenesis-related protein 10 (PR-10)	CN213132	10	38	16.5/5.45	17.4/5.3
33^f	Pathogenesis-related protein 10 (PR-10)	TA22962	3	13	16.9/5.5	17.4/5.3
34	2-Oxoglutarate-dependent dioxygenase (SPP2)	TA24517	3	9	36.7/5.6	37.9/5.54
	Suberization/lignification
35	ACP-17 kDa β-hydroxyacyl-acyl carrier protein	TA29588	6	17	17.63/6.15	24.6/9.03
9^d	Caffeoyl-CoA O-methyltransferase-5 (CCoAOMT-5)	TA33337	6	26	24.4/5.8	26.3/5.51
36	Caffeoyl-CoA O-methyltransferase-6 (CCoAOMT-6)	TA30542	7	29	26.4/5.48	27.98/5.4
37	Caffeoyl-CoA O-methyltransferase-3 (CCoAOMT-3)	TA30485	4	14	26/4.8	25.95/5.4^e
38,39	Peroxidase (POD 18)	TA25873	10–11	27–28	32.8/ 6.4–6.7	36.3/6.32
40	Peroxidase PER9-6 secretory (POD 20)	TA23216	12	22	43/6.8	39.7/7.6
41	Peroxidase 136, class III, precursor (POD 9)	TA39454	10	34	32.8/5.35	35/5.2
42	Peroxidase putative (POD 5)	CV504265	3	12	39.6/4.85	35.85/9.2^e
43-45	Peroxidase, suberization-associated anionic peroxidase (POP_A)	TA25019	5	15	53.4–39.6/4.15–4.2	36.3/6.32
	Reference protein
46	Nascent polypeptide-associated complex NAC; UBA-like	TA25576	4	20	24.9/4.42	21.7/4.38

Potato Transcript Assemblies (http://plantta.tigr.org/) and EST identifiers.

Number of peptides identified.

Sequence coverage in between (%).

Spot that contains more than one protein.

Calculated using the most similar protein.

Additional isozymes were found in the skin Table S2.