SUPPLEMENTARY INFORMATION Supplementary Data Table 1 Ultra-structural fibre features of five fibres from the dark brown 0 hour UV, baseline copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Parameter Cuticle layers Dark brown 0 hour UV, baseline Cu Hair Number 1 2 3 4 3-6 4-6 3-5 4-8 5 7-8 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse 15 20 <5 75 <5 30 <5 65 <5 25 <5 70 <5 45 <5 50 <5 70 <5 25 Cortical holes Medium Few Medium Few Few Cytoplasmic remnant damage Slight Slight Medium Slight Slight Melanin grain damage Slight Slight Slight Slight Medium % Normal cortical CMC 95 85 95 90 95 % Indistinct, separated or damaged cortical CMC <5 15 5 10 5 Supplementary Data Table 2 Ultra-structural fibre features of five fibres from the light brown 0 hour UV, baseline copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Parameter Cuticle layers Light brown 0 hour UV, baseline Cu Hair No. 1 2 3 3-6 6-7 4-6 4 5-8 5 3-6 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse 5 90 <5 <5 <5 50 <5 45 20 90 <5 <5 <5 40 <5 55 40 70 5 25 Cortical holes Few Few to medium Medium Few to medium Medium Cytoplasmic remnant damage Slight Slight Medium Slight Severe Melanin grain damage Slight Slight Slight to medium Slight Medium % Normal cortical CMC 95 95 80 80 90 % Indistinct, separated or damaged cortical CMC <5 <5 20 20 10 Supplementary Data Table 3 Ultra-structural fibre features of five fibres from the dark brown 40 hour UV, baseline copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Dark brown 40 hour UV, baseline Cu Hair Number 1 2 3 4 5-8 4-8 3-7 6-7 Parameter Cuticle layers 5 0-4 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse <5 80 <5 15 <5 90 <5 <5 15 90 <5 <5 15 80 <5 15 50 n/a n/a n/a Cortical holes Medium Medium to severe Medium Medium Medium to severe Cytoplasmic remnant damage Slight Slight Slight Severe Medium Severe Melanin grain damage Medium Medium Medium Slight Slight % Normal cortical CMC 95 95 95 90 85 % Indistinct, separated or damaged cortical CMC <5 <5 <5 10 15 Supplementary Data Table 4 Ultra-structural fibre features of five fibres from the light brown 40 hour UV, baseline copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Parameter Cuticle layers Light brown 40 hour UV, baseline Cu Hair No. 1 2 3 4-6 5-6 4-6 4 5-8 5 4-8 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse 5 75 <5 20 <5 70 15 15 5 15 <5 80 50 50 <5 45 <5 80 <5 15 Cortical holes Medium Few Few to medium Medium Medium Cytoplasmic remnant damage Medium Slight Slight Slight to medium Severe Melanin grain damage Medium Slight Slight Slight Slight % Normal cortical CMC 85 95 95 95 95 % Indistinct, separated or damaged cortical CMC 15 <5 <5 <5 <5 Supplementary Data Table 5 Ultra-structural fibre features of five fibres from the dark brown 0 hour UV, high copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Dark brown 0 hour UV, high Cu Parameter Cuticle layers 1 3-4 2 0-3 Hair No. 3 3-6 4 5-6 5 4-7 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse <5 70 <5 25 20 <5 20 85 <5 <5 <5 20 15 20 <5 75 50 50 <5 45 Cortical holes Few to medium Medium Few Medium Medium Cytoplasmic remnant damage Slight Slight Slight Slight Medium Melanin grain damage Slight Slight Slight Slight Medium % Normal cortical CMC 80 80 75 70 85 % Indistinct, separated or damaged cortical CMC 20 20 25 30 15 Supplementary Data Table 6 Ultra-structural fibre features of five fibres from the light brown 0 hour UV, high copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Light brown 0 hour UV, high Cu Parameter Cuticle layers 1 4-7 2 4-7 Hair No. 3 6-8 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse <5 90 <5 5 40 55 <5 40 <5 50 <5 45 50 85 <5 10 25 90 5 5 Cortical holes Few Medium Few Medium Medium to severe Cytoplasmic remnant damage Slight Severe Slight Medium Severe 4 4-7 5 2-8 Melanin grain damage Slight Medium Slight Slight Medium % Normal cortical CMC 80 85 80 95 90 % Indistinct, separated or damaged cortical CMC 20 15 20 5 10 Supplementary Data Table 7 Ultra-structural fibre features of five fibres from the dark brown 40 hour UV, high copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Parameter Cuticle layers Dark brown 40 hour UV, high Cu Hair No. 1 2 3 5-7 2-4 6-7 4 5-8 5 5-7 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse 5 90 <5 5 5 80 10 10 15 85 15 10 10 90 15 5 20 85 <5 10 Cortical holes Few Medium Medium Medium Many Cytoplasmic remnant damage Slight Medium Slight Slight Severe Melanin grain damage Slight Slight Medium Slight Medium % Normal cortical CMC 95 95 90 90 85 % Indistinct, separated or damaged cortical CMC 5 5 10 10 15 Supplementary Data Table 8 Ultra-structural fibre features of five fibres from the light brown 40 hour UV, high copper sample, detailing observations of damage to the cell membrane complex (CMC) in the cortical and cuticle regions, to the cytoplasmic remnant in the cortical region and surrounding melanine granules, and to the cuticle layers. Parameter Cuticle layers Light brown 40 hour UV, high Cu Hair No. 1 2 3 3-4 6-8 4-7 4 3-6 5 5-10 % Endocuticle holes % Cuticle CMC normal % Cuticle CMC separated % Cuticle CMC diffuse 10 55 20 25 <5 85 <5 10 60 50 10 40 30 80 10 10 20 35 <5 60 Cortical holes Medium Few to medium Many Medium to many Medium to many Cytoplasmic remnant damage Slight Slight to medium Very severe Severe Severe Melanin grain damage Slight Slight Medium to severe Severe Severe % Normal cortical CMC 90 95 75 95 70 % Indistinct, separated or damaged cortical CMC 10 5 25 5 30 Supplementary Data Figure 1 Low magnification micrograph showing few cortical holes and little endocuticle damage. This image is from a 0 hour UV, baseline Cu dose sample. Supplementary Data Figure 2 Hair cortex showing normal (tri-layered) cortical cell membrane complex (CMC) and melanin granules. This image is from a 0 hour UV, baseline Cu dose sample. Supplementary Data Figure 3 Hair cortex showing some indistinct (white arrow, black border) and some normal (black arrow, white border) cortical cell membrane complex (CMC). This image is from a 0 hour UV, high Cu dose sample. Supplementary Data Figure 4 Micrograph showing total cuticle loss and separated cortical cell membrane complex (CMC). Most melanin granules are associated with holes in the cortex and there are some holes (white) where melanin granules have been removed. This image is from a 40 hour UV, baseline Cu dose sample. Note: a partial fold in the specimen (top left corner) is an artefact. Supplementary Data Figure 5 Cuticle region showing normal cuticle cell membrane complex (CMC). This image is from a 40 hour UV, baseline Cu dose sample. Supplementary Data Figure 6 Micrograph showing cortex in relatively good condition. This image is from a 40 hour UV, baseline Cu dose sample. Supplementary Data Figure 7 Cuticle region showing endocuticle holes (white holes between cuticle layers). This image is from a 40 hour UV, high Cu dose sample. Supplementary Data Figure 8 Hair cortex showing severe damage to cytoplasmic remnants. This image is also from a 40 hour UV, high Cu dose sample. Supplementary Data Figure 9 Micrograph showing multiple cuticle layers and melanin granules from a part of the hair that is relatively undamaged. This image is from a 40 hour UV, high Cu dose sample. Supplementary Data Figure 10 Cuticle region showing diffuse cuticle cell membrane complex (CMC), without the 3-layer differentiation visible in normal CMC. This image is from a 40 hour UV, baseline Cu dose sample. Supplementary Data Figure 11 Low magnification micrograph showing severe endocuticle damage. This image is from a 40 hour UV, baseline Cu dose sample. Supplementary Data Figure 12 Tandem mass spectra from 40 hour high copper-level B light brown hair, peptide NQYEALVETNR from Keratin 33b, as extracted from Mascot. Supplementary Data Table 9 sample peptides. Sample Modification DB 0 Oxidation (Met) hour base b DB 0 Quinone hour base b DB 0 Hydroxyquinone hour base b,c DB 0 Oxidation (Met) hour low b,c DB 0 Oxidation (Met) hour low b,c DB 0 Oxidation (Met) hour low b,c DB 0 Oxidation (Pro) hour low b DB 0 Oxidation (Lys) hour low c DB 0 Trioxidation hour low (Cys) c DB 0 Oxidation (His) hour high a DB 0 Oxidation (Pro) hour high b,c DB 0 Oxidation (Pro) hour high b DB 0 Oxidation (Lys) hour high b DB 0 Oxidation (Lys) hour high b DB 0 Dioxidation hour (Cys) high b DB 0 Oxidation (Pro) hour high b DB 0 Oxidation (Met) hour high c DB 0 Oxidation (Pro) hour high c DB 0 Oxidation (Pro) hour Source peptide and protein information for modifications observed in Weight 1 Peptide DLNMDCIIAEIK Protein Keratin 33b Fibre Location Intermediate cortex [1,2] 2 PYNFCLPSLSCR Keratin 33b Intermediate cortex [1,2] filament, 3 NQYEALVETNR Keratin 33b Intermediate cortex [1,2] filament, 1 QDMACLIR Keratin 86/83/81 Intermediate cortex [1] filament, 1 DLNMDCIVAEIK Keratin 83 Intermediate cortex [1] filament, 1 DLNMDCIIAEIK Keratin 81/86 Intermediate cortex [1] filament, 1 PPELQEQLK Glutamine-rich protein 1 KEDLRLMLIELK Nesprin-2 Cytoskeletal 3 ARLECEINTYR Keratin 31/33a/33b/34 Intermediate cortex [1] 1 IEKMQELHAA A-kinase anchor protein Cytoskeletal [3] 1 LNVEVDAAPAV DLNQV Keratin 33b Intermediate cortex [1,2] 1 GKWEPEPSSKPPR Serine-threonine protein kinase Follicles [4] 1 GKWEPEPSSKPPR Serine-threonine protein kinase Follicles [4] 1 GKWEPEPSSKPPR Serine-threonine protein kinase Follicles [4] 2 WLCAVEGER Kinesin-like protein Follicles [2, 5] 1 IAEIEPVER Titin Arrector pili 1 SDLEAQMESLKE ELLSLK Keratin 33b Intermediate cortex [1,2] 1 AGPGTEPDKILR Dynaminbinding protein 1 GPGTEPDKILR Dynaminbinding protein filament, filament, filament, filament, high c DB 0 hour high c DB 0 hour high c DB 0 hour high c DB 20 hour base a DB 20 hour base a DB 20 hour base c DB 20 hour base c DB 20 hour base c DB 20 hour low a DB 20 hour low a DB 20 hour low a DB 20 hour low a DB 20 hour low a DB 20 hour low a DB 20 hour low a DB 20 hour low b DB 20 hour low b DB 20 hour low b DB 20 hour low c Oxidation (Trp) 1 DVEAWFFSKTEELNK Keratin 15 Follicle stem cells [6-8] Oxidation (Phe) 1 DVEAWFFSKTEELNK Keratin 15 Follicle stem cells [6-8] Oxidation (Phe) 1 DVEAWFFSKTEELNK Keratin 15 Follicle stem cells [6-8] Trioxidation (Cys) 3 Keratin 33a Intermediate cortex [1,2] filament, Oxidation (Cys) 1 Keratin 33a Intermediate cortex [1,2] filament, Trioxidation (Cys) 3 SDLEAQVESLKEELLC LK NTLRCQLGDRLNVE VD AAPTVDLNQVLNET R ARLECEINTYR Keratin 34 Intermediate cortex [1] filament, Oxidation (Met) 1 QDMACLIR Keratin 81 Intermediate cortex [1] filament, Oxidation (Met) 1 DLNMDCIIAEIK Keratin 81 Intermediate cortex [1] filament, Oxidation (Cys) 1 Keratin 85 Intermediate filament, cortex and cuticle [1] Keratin 85 Intermediate filament, cortex and cuticle [1] RCCESNLEPLFSGYIE TLRR Oxidation (Cys) 1 RCCESNLEPLFSGYIE TLR Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Lys) 1 Oxidation (Pro) 1 Trioxidation (Cys) 3 Oxidation (Met) 1 Oxidation (Met) 1 Trioxidation (Cys) 3 Oxidation (Arg) 1 Zinc protein finger Hair follicle stem cell [9] Zinc protein finger Hair follicle stem cell [9] Zinc protein finger Hair follicle stem cell [9] Zinc protein finger Hair follicle stem cell [9] APELPKPKKN APELPKPKKN APELPKPKKN APELPKPKKN KAP 4.12 Matrix [10] Keratin 33b Intermediate cortex [1,2] filament, Keratin 81 Intermediate cortex [1] filament, KAP 4.7 Matrix Triple functional domain protein Cytoskeletal [11] CCLRPVCGR ETMQFLNDR DLNMDCIIAEIK CCLRPVCGR QRTNFGSSKFEFET DB 20 hour low c DB 20 hour high a DB 20 hour high a DB 20 hour high a DB 20 hour high a DB 20 hour high a DB 20 hour high a, b DB 20 hour high a, b DB 20 hour high a, b DB 20 hour high a, b DB 20 hour high a DB 20 hour high a DB 20 hour high b DB 20 hour high c DB 20 hour high c DB 20 hour high c DB 20 hour high c DB 40 hour base a DB 40 hour base b DB 40 hour Oxidation (Phe) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Lys) 1 Oxidation (Pro) 1 Oxidation (Lys) 1 Oxidation (Trp) 1 Oxidation (Phe) 1 Oxidation (Phe) 1 Oxidation (Pro) 1 Trioxidation (Cys) 3 Trioxidation (Cys) 3 Trioxidation (Cys) 3 Oxidation (Arg) 1 Oxidation (Phe) 1 Oxidation (Met) 1 Oxidation (Met) 1 Trioxidation (Cys) 3 Oxidation (Pro) 1 Oxidation (Met) 1 QRTNFGSSKFEFET Triple functional domain protein Zinc finger protein Cytoskeletal [11] Zinc protein finger Hair follicle stem cell [9] Zinc protein finger Hair follicle stem cell [9] Zinc protein finger Hair follicle stem cell [9] Hair follicle stem cell [9] APELPKPKKN APELPKPKKN APELPKPKKN APELPKPKKN A-kinase anchor protein 9 Cytoskeletal [3] Keratin 15 Follicle stem cells [6-8] Keratin 15 Follicle stem cells [6-8] Keratin 15 Follicle stem cells [6-8] Titin Erector pili Keratin 35 Intermediate filament, cortex and cuticle [1] Keratin 35 Intermediate filament, cortex and cuticle [1] Keratin 33b Intermediate cortex [1,2] Triple functional domain protein Triple functional domain protein Keratin 83 Cytoskeletal [11] Intermediate cortex [1] filament, Keratin 81 Intermediate cortex [1] filament, Keratin 31 Intermediate cortex [1,2] filament, Intermediate cortex [1] filament, AQEEKIKELQK DVEAWFFSKTEELNK DVEAWFFSKTEELNK DVEAWFFSKTEELNK IAEIEPVER SDLEAQVESLKEELLC LK ARLECEINTYR filament, NQYEALVETNR QRTNFGSSKFEFET QRTNFGSSKFEFET Cytoskeletal [11] DLNMDCIVAEIK DLNMDCIIAEIK ARLECEINTYR LAPVSLPR QDMACLIR StAR related lipid transfer protein 9 Keratin 86 base b DB 40 hour base b, c DB 40 hour base b DB 40 hour base c DB 40 hour base c DB 40 hour base c DB 40 hour low a DB 40 hour low b DB 40 hour low b DB 40 hour low b DB 40 hour low b, c DB 40 hour low b DB 40 hour low b DB 40 hour low b DB 40 hour low b DB 40 hour high a DB 40 hour high a DB 40 hour high a DB 40 hour high a, b DB 40 hour high b DB 40 Oxidation (Met) 1 Oxidation (Met) 1 Oxidation (Trp) 1 Oxidation (Phe) 1 Oxidation (Phe) 1 Dioxidation (Trp) 2 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Met) 1 Oxidation (Met) 1 Oxidation (Trp) 1 Oxidation (Phe) 1 Oxidation (Phe) 1 Hydroxyquinone (Tyr) 3 Dioxidation (Cys) 2 Oxidation (Pro) 1 Oxidation (Pro) 1 Trioxidation (Cys) 3 Dioxidation (Cys) 2 Oxidation (Pro) 1 Keratin 83 Intermediate cortex [1] filament, Keratin 83 Intermediate cortex [1] filament, Keratin 15 Cuticle Keratin 15 Cuticle Keratin 15 Cuticle DLNMDCIVAEIK DLNMDCIIAEIK DVEAWFFSKTEELNK DVEAWFFSKTEELNK DVEAWFFSKTEELNK Multiple protein C2 GILDIEVWGK Glutamine-rich protein PRARDEAGVPR Glutamine-rich protein PRARDEAGVPR Keratin 81 Intermediate cortex [1] filament, Keratin 86 Intermediate cortex [1] filament, Keratin 15 Cuticle Keratin 15 Cuticle Keratin 15 Cuticle Keratin 33 Intermediate cortex [1,2] KAP 4.7 Matrix A-kinase anchor protein Cytoskeletal [3] A-kinase anchor protein Cytoskeletal [3] Keratin 35 Intermediate filament, cortex and cuticle [1] Kinesin-like protein Follicles [2, 5] QDMACLIR DLNMDCIIAEIK DVEAWFFSKTEELNK DVEAWFFSKTEELNK DVEAWFFSKTEELNK filament, NQYEALVETNR CQTTCCR FIRESEPEPDVR FIRESEPEPDVR SDLEAQVESLKEELLC LK WLCAVEGER QGDGQGEVQPRG Proline-rich hour high b DB 40 hour high b DB 40 hour high b DB 40 hour high b DB 40 hour high b DB 40 hour high b DB 40 hour high c LB 0 hour base b LB 0 hour base c LB 0 hour low a LB 0 hour low a LB 0 hour low a LB 0 hour low a LB 0 hour low a LB 0 hour low a LB 0 hour low a LB 0 hour low b LB 0 hour low b LB 0 hour low b LB 0 hour low c Oxidation (Met) transmembrane protein Keratin 86 1 Intermediate cortex [1] filament, Keratin 86 Intermediate cortex [1] filament, A-kinase anchor protein Cytoskeletal [3] Keratin 33b Intermediate cortex [1,2] filament, Keratin 33a Intermediate cortex [1,2] filament, Keratin 83 Intermediate cortex [1,2] filament, Keratin 33b Intermediate cortex [1,2] filament, Keratin 33b Intermediate cortex [1,2] filament, A-kinase anchor protein Cytoskeletal [3] A-kinase anchor protein Cytoskeletal [3] Keratin 15 Follicle stem cells [6-8] Keratin 15 Follicle stem cells [6-8] Keratin 15 Follicle stem cells [6-8] QDMACLIR Oxidation (Met) 1 Oxidation (His) 1 Oxidation (Pro) 1 DLNMDCIIAEIK IEKMQELHAA LNVEVDAAPAVDLN QV Trioxidation (Cys) 3 ARLECEINTYR Trioxidation (Cys) 3 CKLAELEGALQK Hydroxyquinone (Tyr) 3 Trioxidation (Cys) 3 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Trp) 1 NQYEALVETNR SDLEAQVESLKEELLC LK FIRESEPEPDVR FIRESEPEPDVR DVEAWFFSKTEELNK Oxidation (Phe) 1 Oxidation (Phe) 1 Oxidation (Pro) 1 Oxidation (Lys) 1 DVEAWFFSKTEELNK DVEAWFFSKTEELNK Glutamine-rich protein 2 PPELQEQLK Keratin 35 Intermediate filament, cortex and cuticle [1] Keratin 83 Intermediate cortex [1,2] filament, Keratin 81 Intermediate cortex [1] filament, Keratin 33b Intermediate cortex [1,2] filament, Keratin 33a Intermediate cortex [1,2] filament, ILDDLTLCKSDLEAQV ESLKEELLCLK Oxidation (Met) 1 Oxidation (Met) 1 Oxidation (Pro) 1 QDMACLIR DLNMDCIIAEIK LNVEVDAAPAVDLN QV Trioxidation (Cys) 3 ARLECEINTYR LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high a LB 0 hour high b LB 0 hour high b LB 0 hour high b LB 0 hour high c LB 20 hour base a LB 20 hour base a LB 20 hour base a LB 20 hour base a LB 20 hour base b LB 20 hour Trioxidation (Cys) 1 Oxidation (Cys) 2 KAP 9.3 Matrix KAP 9.3 Matrix KAP 9.3 Matrix KAP 9.3 Matrix G-protein interactor Cell adhesion [12] G-protein interactor Cell adhesion [12] G-protein interactor Cell adhesion [12] G-protein interactor Cell adhesion [12] G-protein interactor Cell adhesion [12] Keratin 35 Intermediate filament, cortex and cuticle [1] Titin Erector pili Keratin 86 Intermediate cortex [1] KAP 4.7 Matrix Keratin 33a Intermediate cortex [1,2] ATP-binding cassette Follicle [13] ATP-binding cassette Follicle [13] Titin Erector pili Keratin 33b Intermediate cortex [1,2] A-kinase anchor protein Cytoskeletal [3] CCQPTCCGSSCGQSS SCAPVYCR CCQPTCCGSSCGQSS SCAPVYCR Trioxidation (Cys) 3 Dioxidation (Cys) 3 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Glu) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Lys) 1 CCQPTCCGSSCGQSS SCAPVYCR CCQPTCCGSSCGQSS SCAPVYCR SSPPPRLR SSPPPRLR PESGGPCGKALPER PESGGPCGKALPER PESGGPCGKALPER ILDDLTLCKSDLEAQV ESLKEELLCLK Oxidation (Pro) 1 Oxidation (Met) 1 Trioxidation (Cys) 3 Oxidation (Lys) 1 IAEIEPVER filament, DLNMDCIIAEIK CCLRPVCGR SDLEAQVESLKEELLC LK Oxidation (Lys) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Trioxidation (Cys) 3 Oxidation (His) 1 Hydroxykynureni ne (Trp) 3 filament, KDVLPGAE KDVLPGAE IAEIEPVER NQYEALVETNR IEKMQELHAA ALEAHWSTLRHWLS DVK Cross-linking factor filament, base b LB 20 hour base b LB 20 hour low a LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low b LB 20 hour low c LB 20 hour low c LB 20 hour high a LB 20 hour high a LB 20 hour high a LB 20 hour high a LB 20 hour high a LB 20 Oxidation (Met) 1 Trioxidation (Cys) 3 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Hydroxyquinone (Tyr) 3 Oxidation (Pro) 1 Oxidation (Pro) 1 MVGMQPPQAPR CTRPICEPCR Seizure threshold protein Keratinassociated protein Serotonin receptor Matrix Cell signalling [14] PKEPGELAGKK Serotonin receptor Cell signalling [14] Serotonin receptor Cell signalling [14] Serotonin receptor Cell signalling [14] Keratin 33b Intermediate cortex [1,2] Bromodomain protein Epithelial [15] Bromodomain protein Epithelial [15] PKEPGELAGKK GPKEPGELAGKK GPKEPGELAGKK filament, NQYEALVETNR PPDPDSEGSTK PPDPDSEGSTK 1 Keratin 7 ELMSVKLALDIEIATY R Oxidation (Met) 1 Epithelial [15] Bromodomain protein 1 Epithelial [15] Keratin 86 Intermediate cortex [1] filament, Keratin 86 Intermediate cortex [1] filament, Kinesin-like protein Follicles [1,2] Keratin 86 Intermediate cortex [1] Keratin 15 Follicle stem cells [6-8] Keratin 15 Follicle stem cells [6-8] Keratin 15 Follicle stem cells [6-8] KAP 4.5 Matrix [16] AKMVPEKVPR Oxidation (Pro) 1 AKMVPEKVPR Oxidation (Pro) 1 Oxidation (Met) Oxidation (Met) Bromodomain protein 1 DLNMDCIIAEIK 1 QDMACLIR Dioxidation (Cys) 2 Oxidation (Cys) 1 WLCAVEGER RLCEGIGAVNVCVSS SR Oxidation (Trp) 1 Oxidation (Phe) 1 Oxidation (Phe) 1 Trioxidation 3 filament, DVEAWFFSKTEELNK DVEAWFFSKTEELNK DVEAWFFSKTEELNK SCCRPCCCQTTCCR hour high a LB 20 hour high a LB 20 hour high a LB 20 hour high a LB 20 hour high b LB 20 hour high b LB 20 hour high b LB 20 hour high c LB 40 hour base a LB 40 hour base b LB 40 hour base b LB 40 hour base b LB 40 hour base c LB 40 hour low a LB 40 hour low a LB 40 hour low a LB 40 hour low a LB 40 hour low b LB 40 hour low b LB 40 hour low b (Cys) Trioxidation (Cys) 3 KAP 4.5 Matrix [16] Nuclear mitotic apparatus Follicles [17] KAP 4.5 Matrix [17] SCCRPCCCQTTCCR Hydroxykynureni ne (Trp) 3 Hydroxyquinone (Tyr) 3 Oxidation (Pro) 1 Oxidation (Pro) 1 AWQEKFFQKEQALS TLQ QYEPIMETNR Glutamine-rich protein PPELQEQLK Keratin 33b Intermediate cortex [1,2] filament, Keratin 81 Intermediate cortex [1] filament, Keratin 34 Intermediate cortex [1] filament, Keratin 33a Intermediate cortex [1,2] filament, Intermediate cortex [1] filament, Intermediate cortex [1] filament, LNVEVDAAPAVDLN QV Oxidation (Met) 1 Trioxidation (Cys) 3 Trioxidation (Cys) 3 Oxidation (Pro) 1 Oxidation (Met) 1 DLNMDCIIAEIK ARLECEINTYR SDLEAQVESLKEELLC LK CMYA5 AESEEEPDSR Keratin 86 DLNMDCIIAEIK Trioxidation (Cys) 3 Oxidation (Met) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Lys) 1 Keratin 35 SDLEAQVESLKEELLC LK Keratin 86 DLNMDCIIAEIK Zinc protein finger Follicle stem cells [9] Zinc protein finger Follicle stem cells [9] Zinc protein finger Follicle stem cells [9] Zinc protein finger Follicle stem cells [9] APELPKPKKN APELPKPKKN APELPKPKKN Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 APELPKPKKN Bromodomain protein Epithelial [15] Bromodomain protein Epithelial [15] Serotonin receptor Cell signalling [14] PPDPDSEGSTK PPDPDSEGSTK PKEPGELAGKK LB 40 hour low b LB 40 hour low b LB 40 hour low b LB 40 hour low c LB 40 hour low c LB 40 hour high a LB 40 hour high a LB 40 hour high a LB 40 hour high a LB 40 hour high a LB 40 hour high a LB 40 hour high a LB 40 hour high a LB 40 hour high b LB 40 hour high c Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Trioxidation (Cys) 3 Trioxidation (Cys) 3 Dioxidation (Cys) 2 Oxidation (Pro) 1 Oxidation (Lys) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Oxidation (Pro) 1 Hydroxykynureni ne (Trp) 3 Hydroxyquinone (Tyr) 3 Hydroxyquinone (Tyr) 3 Trioxidation (Cys) 3 Serotonin receptor Cell signalling [14] Serotonin receptor Cell signalling [14] Serotonin receptor Cell signalling [14] Keratin 86 Intermediate cortex [1] Keratin 35 Intermediate filament, cortex and cuticle [1] Keratin 31 Intermediate cortex [1,2] PKEPGELAGKK GPKEPGELAGKK GPKEPGELAGKK filament, CKLAELEGALQK SDLEAQVESLKEELLC LK MYCCALRSCSVPTGP ATTFCSFDK filament, Ribosyltransfera se NPTTLEARLR Proteoglycan 4 Follicles [18] Proteoglycan 4 Follicles [18] Proteoglycan 4 Follicles [18] Proteoglycan 4 Follicles [18] Nuclear mitotic apparatus Follicles [18] Keratin 85 Intermediate filament, cortex and cuticle [1] Keratin 33b Intermediate cortex [1,2] filament, Keratin 31 Intermediate cortex [1,2] filament, PKEPAPTTPK PKEPAPTTPK PKEPAPTTPK PKEPAPTTPK AWQEKFFQKEQALS TLQ WQFYQNQRCCESN LEPLFSGYIETLR NQYEALVETNR SDLEAQVESLKEELLC LK References 1. 2. 3. 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