Table 2. Peptides with Differential Abundance for Both Spectral Count and Spectral Index.
| peptide |
NSa |
spectral count |
spectral index |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UniProt Accnb | locationc | sequence and PTM | D | N | D/Nd | SEe | p-value | aPVf | D/N | SE | p-value | aPV |
| P49192 | CARTPT[37–54] | ALDIYSAVDDASHEKELP | 9 | 9 | 0.56 | 0.07 | 1.66 × 10–06 | 1.22 × 10–21 | 0.59 | 0.03 | 2.85 × 10–05 | 2.19 × 10–20 |
| P49192 | CARTPT[37–54] | ALDIYSAVDDAS[phos]HEKELP | 9 | 9 | 0.62 | 0.08 | 1.80 × 10–04 | 1.46 × 10–06 | 0.60 | 0.06 | 1.97 × 10–03 | 6.39 × 10–06 |
| P49192 | CARTPT[60–79] | APGAVLQIEALQEVLKKLKS | 3 | 4 | 11.13 | 5.74 | 3.03 × 10–06 | 1.53 × 10–40 | 11.25 | 2.04 | 4.59 × 10–05 | 1.10 × 10–38 |
| P11240 | COX5A[56–66] | FNKPDIDAWEL | 6 | 7 | 4.89 | 1.51 | 2.60 × 10–07 | 1.13 × 10–09 | 3.15 | 0.59 | 5.23 × 10–06 | 8.13 × 10–09 |
| P14200 | MCH[32–55] | NVEDDIVFNTFRMGKAFQKEDTAE | 6 | 9 | 0.59 | 0.09 | 7.41 × 10–04 | 2.73 × 10–03 | 0.68 | 0.09 | 6.38 × 10–03 | 8.05 × 10–03 |
| P30904 | MIF[11–27] | PRASVPEGFLSELTQQL | 6 | 8 | 2.23 | 0.48 | 1.64 × 10–04 | 2.99 × 10–10 | 3.05 | 0.54 | 1.88 × 10–03 | 2.38 × 10–09 |
| P19804 | NDKB[2–16] | [acetyl]ANLERTFIAIKPDGV | 9 | 4 | 7.88 | 3.52 | 3.69 × 10–06 | 2.44 × 10–07 | 2.80 | 0.56 | 5.23 × 10–05 | 1.28 × 10–06 |
| Q9QXU9 | PCSK1[113–143] | WGSPRASDPPLAPDDDPDAPAAQLARALLRA | 6 | 3 | 0.25 | 0.09 | 2.14 × 10–04 | 2.37 × 10–92 | 0.23 | 0.02 | 2.24 × 10–03 | 5.10 × 10–90 |
| Q9QXU9 | PCSK1[221–242] (PEN) | AVDQDLGPEVPPENVLGALLRV | 9 | 9 | 0.69 | 0.04 | 2.19 × 10–13 | 7.42 × 10–29 | 0.43 | 0.03 | 5.28 × 10–11 | 1.59 × 10–27 |
| P06300 | PDYN[211–218] | PKLKWDNQ | 7 | 9 | 0.22 | 0.06 | 1.44 × 10–07 | 5.26 × 10–09 | 0.36 | 0.06 | 3.46 × 10–06 | 3.53 × 10–08 |
| P31044 | PEBP1[170–187] | [pyro]QAEWDDSVPKLHDQLAGK | 9 | 6 | 2.77 | 0.67 | 2.44 × 10–05 | 5.80 × 10–07 | 1.69 | 0.18 | 2.94 × 10–04 | 2.71 × 10–06 |
| P31044 | PEBP1[93–120] | KGNDISSGTVLSEYVGSGPPKDTGLHRY | 6 | 5 | 2.37 | 0.59 | 5.52 × 10–04 | 2.22 × 10–05 | 2.70 | 0.63 | 5.12 × 10–03 | 8.69 × 10–05 |
| P04094 | PENK[263–269] (Met-enkephalin-Arg-Phe) | YGGFMRF | 4 | 9 | 0.07 | 0.04 | 1.23 × 10–07 | 5.54 × 10–19 | 0.10 | 0.03 | 3.30 × 10–06 | 7.44 × 10–18 |
| Q9R063 | PRDX5[204–213] | SLAPNILSQL | 9 | 7 | 5.22 | 1.52 | 1.44 × 10–08 | 1.39 × 10–06 | 4.13 | 1.21 | 6.93 × 10–07 | 6.22 × 10–06 |
| Q9R063 | PRDX5[54–67] | PIKVGDTIPSVEVF | 6 | 8 | 3.84 | 1.11 | 3.05 × 10–06 | 1.65 × 10–32 | 2.72 | 0.23 | 4.59 × 10–05 | 5.07 × 10–31 |
| O35314 | SCG1[597–611] | [pyro]QYDDGVAELDQLLHY | 9 | 9 | 0.63 | 0.06 | 3.98 × 10–07 | 2.34 × 10–06 | 0.58 | 0.07 | 7.38 × 10–06 | 1.01 × 10–05 |
| P10362 | SCG2[495–517] | PYDNLNDKDQELGEYLARMLVKY | 3 | 4 | 5.62 | 1.81 | 8.59 × 10–08 | 4.64 × 10–13 | 5.98 | 1.48 | 2.59 × 10–06 | 5.25 × 10–12 |
| P10362 | SCG2[529–554] | VPSPGSSEDDLQEEEQLEQAIKEHLG | 9 | 6 | 3.22 | 0.70 | 8.24 × 10–08 | 2.34 × 10–04 | 2.34 | 0.54 | 2.59 × 10–06 | 8.00 × 10–04 |
| P10362 | SCG2[571–583] | IPAGSLKNEDTPN | 6 | 6 | 4.52 | 0.98 | 4.40 × 10–12 | 1.90 × 10–08 | 15.12 | 7.30 | 3.53 × 10–10 | 1.20 × 10–07 |
| Q6PDU1 | SFRS2[2–21] | [acetyl]SYGRPPPDVEGMTSLKVDNL | 3 | 8 | 0.10 | 0.05 | 7.28 × 10–06 | 3.58 × 10–19 | 0.18 | 0.03 | 9.75 × 10–05 | 5.14 × 10–18 |
| P06767 | TKN1[72–94] | DADSSIEKQVALLKALYGHGQIS | 9 | 9 | 0.66 | 0.07 | 2.15 × 10–05 | 3.85 × 10–38 | 0.47 | 0.03 | 2.72 × 10–04 | 2.07 × 10–36 |
| P08435 | TKNK[95–115] | NSQPDTPADVVEENTPSFGVL | 8 | 9 | 0.45 | 0.07 | 2.21 × 10–07 | 3.10 × 10–05 | 0.41 | 0.09 | 4.84 × 10–06 | 1.19 × 10–04 |
| Q5PPN5 | TPPP3[2–17] | [acetyl]AASTDIAGLEESFRKF | 9 | 9 | 2.97 | 0.46 | 1.37 × 10–12 | 4.71 × 10–08 | 3.15 | 0.66 | 1.66 × 10–10 | 2.81 × 10–07 |
| P20156 | VGF[285–309] (neuroendocrine regulatory peptide-1) | LEGSFLGGSEAGERLLQQGLAQVEA | 4 | 9 | 0.13 | 0.04 | 5.72 × 10–11 | 2.22 × 10–10 | 0.30 | 0.06 | 3.45 × 10–09 | 1.84 × 10–09 |
Number of daytime (D) and nighttime (N) samples where the peptide was detected.
Uniprot accession number.
Peptide location within in the prohormone : CARTPT, CART prepropeptide; COX5A, cytochrome c oxidase, subunit Va; MCH, pro-melanin-concentrating hormone; MIF, macrophage migration inhibitory factor (glycosylation-inhibiting factor); NDKB, NME/NM23 nucleoside diphosphate kinase 2; PCSK1N, proprotein convertase subtilisin/kexin type 1 inhibitor; PDYN, prodynorphin; PEBP1, phosphatidylethanolamine binding protein 1; PENK, proenkephalin; PRDX5, peroxiredoxin 5; SCG1, chromogranin B (secretogranin 1); SCG2, secretogranin II; SFRS2, serine/arginine-rich splicing factor 2; TKN1, tachykinin, precursor 1; TKNK, tachykinin 3; TPPP3, tubulin polymerization-promoting protein family member 3; VGF, VGF nerve growth factor inducible; and peptide name in parentheses if known.
Ratio of peptide abundance at daytime compared to nighttime.
Standard error of the peptide abundance ratio at daytime compared to nighttime.
False discovery rate adjusted p-value.