Table S1. mRNAs in naïve cortical axons isolated after 13 days in culture (listed in descending order of expression level). Probe Set ID Gene Symbol* Gene Name* RMA expr 1387890_AT RPS29 RIBOSOMAL PROTEIN S29 10651 1384548_AT RPL32 RIBOSOMAL PROTEIN L32 9120 1370242_AT RPS23 RIBOSOMAL PROTEIN S23 8875 1375219_A_AT RPS2 RIBOSOMAL PROTEIN S2 8524 1367565_A_AT FTH1 FERRITIN, HEAVY POLYPEPTIDE 1 7688 1388244_S_AT LAMR1 LAMININ RECEPTOR 1 (RIBOSOMAL PROTEIN SA) 6663 1370213_AT NSEP1 NUCLEASE SENSITIVE ELEMENT BINDING PROTEIN 1 6256 1398852_AT RPS21 RIBOSOMAL PROTEIN S21 5916 1398751_AT LOC497813 SIMILAR TO RIBOSOMAL PROTEIN S7 5882 1398774_AT RPL30 RIBOSOMAL PROTEIN L30 5685 1367583_AT TPT1 TUMOR PROTEIN, TRANSLATIONALLY-CONTROLLED 1 5540 1367634_AT RPL31 RIBOSOMAL PROTEIN L31 5277 1370866_AT RPL41 RIBOSOMAL PROTEIN L41 5186 1367630_AT RPS11 RIBOSOMAL PROTEIN S11 5011 1371307_AT RPLP1 RIBOSOMAL PROTEIN, LARGE, P1 4934 1367645_AT RPS17 RIBOSOMAL PROTEIN S17 4889 1367639_A_AT RPS2 RIBOSOMAL PROTEIN S2 4875 1398789_AT RPL37 RIBOSOMAL PROTEIN L37 4779 1388372_AT RPL35 RIBOSOMAL PROTEIN L35 4655 1367717_AT RPS27 RIBOSOMAL PROTEIN S27 4614 1398760_AT RPL35A RIBOSOMAL PROTEIN L35A 4612 1367606_AT RPS3A RIBOSOMAL PROTEIN S3A 4478 1367596_AT RPS26 RIBOSOMAL PROTEIN S26 4433 1371318_AT RPS16 RIBOSOMAL PROTEIN S16 4387 1367640_AT RPS12 RIBOSOMAL PROTEIN S12 4371 1375181_AT LOC499782 SIMILAR TO 60S RIBOSOMAL PROTEIN L12 4257 1371308_AT RPS4X RIBOSOMAL PROTEIN S4, X-LINKED 4214 1367560_AT ARBP ACIDIC RIBOSOMAL PHOSPHOPROTEIN P0 4173 1367610_AT RPL19 RIBOSOMAL PROTEIN L19 3949 1370238_AT USMG5 UPREGULATED DURING SKELETAL MUSCLE GROWTH 5 3901 1367561_AT RPL27 RIBOSOMAL PROTEIN L27 3765 1398324_AT MGC72957 SIMILAR TO 60S RIBOSOMAL PROTEIN L18A 3676 1367569_AT LAMR1 LAMININ RECEPTOR 1 (RIBOSOMAL PROTEIN SA) 3664 1368211_AT RPS14 RIBOSOMAL PROTEIN S14 3532 1398764_AT RPL21 RIBOSOMAL PROTEIN L21 3461 1370253_AT RPL22 RIBOSOMAL PROTEIN L22 3448 1398775_AT RPS15A RIBOSOMAL PROTEIN S15A 3352 1369410_AT GOSR1 GOLGI SNAP RECEPTOR COMPLEX MEMBER 1 3328 1367597_AT RPS8 RIBOSOMAL PROTEIN S8 3301 1367573_AT RPS6 RIBOSOMAL PROTEIN S6 3271 1371189_X_AT LAMR1 LAMININ RECEPTOR 1 (RIBOSOMAL PROTEIN SA) 3103 1398872_AT RPL13 RIBOSOMAL PROTEIN L13 3063 1398872_AT RPS13 RIBOSOMAL PROTEIN S13 3063 1367629_AT COX7A2 CYTOCHROME C OXIDASE, SUBUNIT VIIA 2 3047 1371316_AT FAU FINKEL-BISKIS-REILLY MURINE SARCOMA VIRUSUBIQUITOUSLY EXPRESSED 3037 1370284_AT ATP5E ATP SYNTHASE, H+ TRANSPORTING, MITOCHONDRIAL F1 COMPLEX, EPSILON SUBUNIT 3002 1371295_AT RPS20 RIBOSOMAL PROTEIN S20 2984 1398871_AT RPL17 RIBOSOMAL PROTEIN L17 2981 1368042_A_AT HMGB1 HIGH MOBILITY GROUP BOX 1 2850 1398315_AT RPL15 RIBOSOMAL PROTEIN L15 2754 1398917_AT RPL7 RIBOSOMAL PROTEIN L7 2748 1398754_AT UBA52 UBIQUITIN A-52 RESIDUE RIBOSOMAL PROTEIN FUSION PRODUCT 1 2707 1398761_AT RPL5 RIBOSOMAL PROTEIN L5 2605 1374329_AT MCF2L MCF.2 TRANSFORMING SEQUENCE-LIKE 2583 1386874_AT RPS15 RIBOSOMAL PROTEIN S15 2542 1398839_AT TXN1 THIOREDOXIN 1 2462 1398801_AT CDK105 CDK105 PROTEIN 2419 1367559_AT FTL1 FERRITIN LIGHT CHAIN 1 2357 1367588_A_AT RPL13A RIBOSOMAL PROTEIN L13A 2354 1367625_AT RPL10 RIBOSOMAL PROTEIN L10 2339 1367582_AT RPL29 RIBOSOMAL PROTEIN L29 2309 1398885_AT RPL23 RIBOSOMAL PROTEIN L23 2275 1370442_AT TMSBL1 THYMOSIN BETA-LIKE PROTEIN 1 2268 1398830_AT RPL28 RIBOSOMAL PROTEIN L28 2100 1371299_AT RPS3 RIBOSOMAL PROTEIN S3 2030 1386868_AT RPS10 RIBOSOMAL PROTEIN S10 2008 1388297_AT EEF1G EUKARYOTIC TRANSLATION ELONGATION FACTOR 1 GAMMA 1970 1367757_AT COX6C CYTOCHROME C OXIDASE, SUBUNIT VIC 1926 1367618_A_AT DLG5_PREDICTED DISCS, LARGE HOMOLOG 5 (DROSOPHILA) (PREDICTED) 1909 1369966_A_AT RPS24 RIBOSOMAL PROTEIN S24 1763 1398831_AT PSMB4 PROTEASOME (PROSOME, MACROPAIN) SUBUNIT, BETA TYPE 4 1756 1398882_AT RPS5 RIBOSOMAL PROTEIN S5 1752 1367685_AT RPS27A RIBOSOMAL PROTEIN S27A 1711 1370861_AT COX6A1 CYTOCHROME C OXIDASE, SUBUNIT VIA, POLYPEPTIDE 1 1652 1398749_AT RPL4 RIBOSOMAL PROTEIN L4 1509 1367580_AT RPL10A RIBOSOMAL PROTEIN L10A 1499 1371415_AT UQCRH UBIQUINOL-CYTOCHROME C REDUCTASE HINGE PROTEIN 1496 1388110_AT EEF1A1 EUKARYOTIC TRANSLATION ELONGATION FACTOR 1 ALPHA 1 1484 1388113_AT COX8A CYTOCHROME C OXIDASE, SUBUNIT VIIIA 1481 1370745_AT LOC498015 SIMILAR TO SPLICING VARIANT OF RETINAL DEGENERATION B BETA 1468 1387888_AT RPS9 RIBOSOMAL PROTEIN S9 1459 1376629_AT APC ADENOMATOSIS POLYPOSIS COLI 1455 1388390_AT EIF3S3 EUKARYOTIC TRANSLATION INITIATION FACTOR 3, SUBUNIT 3 GAMMA 1362 1370888_AT COX5A CYTOCHROME C OXIDASE, SUBUNIT VA 1362 1386887_AT COX5B CYTOCHROME C OXIDASE SUBUNIT VB 1362 1387927_A_AT OLFM1 OLFACTOMEDIN 1 1286 1371300_AT RPL3 RIBOSOMAL PROTEIN L3 1279 1371340_AT RPLP2 RIBOSOMAL PROTEIN, LARGE P2 1265 1370281_AT FABP5 FATTY ACID BINDING PROTEIN 5, EPIDERMAL 1261 1386852_X_AT UBB POLYUBIQUITIN 1257 1370274_AT UBB POLYUBIQUITIN 1222 1367623_AT RPL18 RIBOSOMAL PROTEIN L18 1203 1397579_X_AT RGD1359127 SIMILAR TO RIKEN CDNA 2310011J03 1198 1398350_AT BASP1 BRAIN ABUNDANT, MEMBRANE ATTACHED SIGNAL PROTEIN 1 1177 1367930_AT GAP43 GROWTH ASSOCIATED PROTEIN 43 1159 1398837_AT TCEB2 TRANSCRIPTION ELONGATION FACTOR B (SIII), POLYPEPTIDE 2 1148 1370179_AT DNCL2A DYNEIN, CYTOPLASMIC, LIGHT CHAIN 2A 1135 1371387_AT COX7B CYTOCHROME C OXIDASE SUBUNIT VIIB 1132 1398794_AT TCEB1 TRANSCRIPTION ELONGATION FACTOR B (SIII), POLYPEPTIDE 1 1075 1373675_AT GLRX2 GLUTAREDOXIN 2 (THIOLTRANSFERASE) 1050 1386858_AT RPL13 RIBOSOMAL PROTEIN L13 1035 1367808_AT TIMM8B TRANSLOCASE OF INNER MITOCHONDRIAL MEMBRANE 8 HOMOLOG B (YEAST) 1030 1369897_S_AT GNAS GNAS COMPLEX LOCUS 1025 1369897_S_AT XLAS XLAS PROTEIN 1025 1367567_AT RPL6 RIBOSOMAL PROTEIN L6 1002 1367861_AT EVL ENA-VASODILATOR STIMULATED PHOSPHOPROTEIN 994 1395461_AT RGD1359127 SIMILAR TO RIKEN CDNA 2310011J03 992 1387617_AT TPM3 TROPOMYOSIN 3, GAMMA 976 1373470_AT CTNNB1 CATENIN (CADHERIN ASSOCIATED PROTEIN), BETA 1, 88KDA 945 1368157_AT STMN3 STATHMIN-LIKE 3 941 1367766_AT NME2 EXPRESSED IN NON-METASTATIC CELLS 2 850 1388313_AT RPS25 RIBOSOMAL PROTEIN S25 822 1398860_AT NEDD8 NEURAL PRECURSOR CELL EXPRESSED, DEVELOPMENTALLY DOWN-REGULATED GENE 8 818 1368145_AT PCP4 PURKINJE CELL PROTEIN 4 814 1386898_AT HSPE1 HEAT SHOCK 10 KDA PROTEIN 1 805 1398854_AT RPL24 RIBOSOMAL PROTEIN L24 785 1398903_AT ESD_MAPPED ESTERASE D/FORMYLGLUTATHIONE HYDROLASE (MAPPED) 772 1375517_AT TRP53INP2 TUMOR PROTEIN P53 INDUCIBLE NUCLEAR PROTEIN 2 769 1375788_AT RPL7 RIBOSOMAL PROTEIN L7 767 1370006_AT NDUFS6 NADH DEHYDROGENASE (UBIQUINONE) FE-S PROTEIN 6 766 1370042_AT STMN2 STATHMIN-LIKE 2 717 1367706_AT VDAC1 VOLTAGE-DEPENDENT ANION CHANNEL 1 699 1373187_AT KIF5A KINESIN FAMILY MEMBER 5A 698 1371600_AT PKIG PROTEIN KINASE INHIBITOR, GAMMA 697 1370109_S_AT EEF1A1 EUKARYOTIC TRANSLATION ELONGATION FACTOR 1 ALPHA 1 691 1386891_AT PBP PHOSPHATIDYLETHANOLAMINE BINDING PROTEIN 678 1375612_AT HNRPA1 HETEROGENEOUS NUCLEAR RIBONUCLEOPROTEIN A1 675 1370276_AT ATP5O ATP SYNTHASE, H+ TRANSPORTING, MITOCHONDRIAL F1 COMPLEX, O SUBUNIT 661 1368097_A_AT RTN1 RETICULON 1 651 1371348_AT PSMB5 PROTEASOME (PROSOME, MACROPAIN) SUBUNIT, BETA TYPE 5 647 1392140_AT CDH11 CADHERIN 11 637 1373067_AT CTNNB1 CATENIN (CADHERIN ASSOCIATED PROTEIN), BETA 1, 88KDA 631 1370246_AT CALM1 CALMODULIN 1 621 1374307_AT CAMK2N1 CALCIUM/CALMODULIN-DEPENDENT PROTEIN KINASE II INHIBITOR 1 620 1386973_A_AT MAPK8IP MITOGEN ACTIVATED PROTEIN KINASE 8 INTERACTING PROTEIN 617 1373048_AT ACTR10 ARP10 ACTIN-RELATED PROTEIN 10 HOMOLOG (S. CEREVISIAE) 605 1369990_AT TOP2A TOPOISOMERASE (DNA) 2 ALPHA 581 1369952_AT PABPC1 POLY(A) BINDING PROTEIN, CYTOPLASMIC 1 573 1375189_AT EDF1_PREDICTED ENDOTHELIAL DIFFERENTIATION-RELATED FACTOR 1 (PREDICTED) 572 1373499_AT GAS5 GROWTH ARREST SPECIFIC 5 546 1386890_AT S100A10 S100 CALCIUM BINDING PROTEIN A10 (CALPACTIN) 539 1371694_AT DPYSL2 DIHYDROPYRIMIDINASE-LIKE 2 537 1371384_AT BTF3 BASIC TRANSCRIPTION FACTOR 3 531 1398781_AT ATP6V1F ATPASE, H+ TRANSPORTING, V1 SUBUNIT F 527 1369939_AT CYCS CYTOCHROME C, SOMATIC 521 1386857_AT STMN1 STATHMIN 1 513 1367690_AT SSR4 SIGNAL SEQUENCE RECEPTOR 4 512 1369976_AT DNCLC1 DYNEIN, CYTOPLASMIC, LIGHT CHAIN 1 506 1370295_AT NME1 EXPRESSED IN NON-METASTATIC CELLS 1 502 1398812_AT PSMB1 PROTEASOME (PROSOME, MACROPAIN) SUBUNIT, BETA TYPE 1 501 1372571_AT RGD1306395 SIMILAR TO 9530046H09RIK PROTEIN 493 1369999_A_AT NNAT NEURONATIN 487 1375127_AT COX5A CYTOCHROME C OXIDASE, SUBUNIT VA 486 1376337_AT SMARCA2 SWI/SNF RELATED, MATRIX ASSOCIATED, ACTIN DEPENDENT REGULATOR OF CHROMATIN, SUBFAMILY A, MEMBER 2 485 1372444_AT KIF5B KINESIN FAMILY MEMBER 5B 481 1374571_AT RGD1307289 SIMILAR TO HYPOTHETICAL PROTEIN FLJ20522 479 1367622_AT ATP5H ATP SYNTHASE, H+ TRANSPORTING, MITOCHONDRIAL F0 COMPLEX, SUBUNIT D 474 1398240_AT HSPA8 HEAT SHOCK PROTEIN 8 470 1370803_AT ZWINT ZW10 INTERACTOR 469 1370315_A_AT STMN4 STATHMIN-LIKE 4 467 1386921_AT CPE CARBOXYPEPTIDASE E 463 1383204_AT NA NA 463 1371682_AT MAP1LC3A MICROTUBULE-ASSOCIATED PROTEIN 1 LIGHT CHAIN 3 ALPHA 456 1370886_A_AT KNS2 KINESIN 2 453 1367641_AT SOD1 SUPEROXIDE DISMUTASE 1 451 1367620_AT ATP5G3 ATP SYNTHASE, H+ TRANSPORTING, MITOCHONDRIAL F0 COMPLEX, SUBUNIT C (SUBUNIT 9) ISOFORM 3 449 1373773_AT GPM6A GLYCOPROTEIN M6A 447 1367557_S_AT GAPDH GLYCERALDEHYDE-3-PHOSPHATE DEHYDROGENASE 447 1370918_A_AT ATP5C1 ATP SYNTHASE, H+ TRANSPORTING, MITOCHONDRIAL F1 COMPLEX, GAMMA POLYPEPTIDE 1 447 1368566_A_AT NDUFV3L NADH DEHYDROGENASE (UBIQUINONE) FLAVOPROTEIN 3-LIKE 441 1367578_AT PRDX2 PEROXIREDOXIN 2 438 1370965_AT TCF8 TRANSCRIPTION FACTOR 8 437 1371642_AT EIF4A2 EUKARYOTIC TRANSLATION INITIATION FACTOR